diff --git a/notebooks/01-Exploration.ipynb b/notebooks/01-Exploration.ipynb
index 66cbe21..d94c9b1 100644
--- a/notebooks/01-Exploration.ipynb
+++ b/notebooks/01-Exploration.ipynb
@@ -54,7 +54,9 @@
     "import pandas as pd\n",
     "import ast\n",
     "import tldextract\n",
-    "import numpy\n",
+    "import numpy as np\n",
+    "\n",
+    "import antispam\n",
     "\n",
     "import plotly\n",
     "from plotly.offline import iplot, init_notebook_mode\n",
@@ -64,10 +66,13 @@
     "init_notebook_mode(connected=True)\n",
     "TOP_N = 0\n",
     "TOP_RANGE = [0, 0]\n",
+    "\n",
     "def set_top_n(n):\n",
     "    global TOP_N, TOP_RANGE\n",
     "    TOP_N = n\n",
-    "    TOP_RANGE = [-.5, n - 1 + .5]"
+    "    TOP_RANGE = [-.5, n - 1 + .5]\n",
+    "    \n",
+    "pd.set_option('display.max_columns', None)"
    ]
   },
   {
@@ -162,16 +167,16 @@
        "    <tr style=\"text-align: right;\">\n",
        "      <th></th>\n",
        "      <th>orcid</th>\n",
-       "      <th>claimed</th>\n",
        "      <th>verified_email</th>\n",
        "      <th>verified_primary_email</th>\n",
        "      <th>given_names</th>\n",
        "      <th>family_name</th>\n",
        "      <th>biography</th>\n",
        "      <th>other_names</th>\n",
-       "      <th>urls</th>\n",
        "      <th>primary_email</th>\n",
-       "      <th>...</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
        "      <th>employment</th>\n",
        "      <th>n_works</th>\n",
        "      <th>works_source</th>\n",
@@ -182,185 +187,257 @@
        "      <th>n_pmc</th>\n",
        "      <th>n_other_pids</th>\n",
        "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
        "    </tr>\n",
        "  </thead>\n",
        "  <tbody>\n",
        "    <tr>\n",
-       "      <th>10000000</th>\n",
-       "      <td>0000-0001-9812-9790</td>\n",
+       "      <th>0000-0001-6097-3953</th>\n",
        "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>jonathan</td>\n",
-       "      <td>termaat</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>...</td>\n",
-       "      <td>[[research co-ordinator, waikato district heal...</td>\n",
        "      <td>0</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>2019-04-15t03:08:05.268z</td>\n",
-       "      <td>2019-04-15t03:09:44.443z</td>\n",
+       "      <td>2018-03-02t09:29:16.528z</td>\n",
+       "      <td>2018-03-02t09:43:07.551z</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>10000001</th>\n",
-       "      <td>0000-0002-0572-0598</td>\n",
+       "      <th>0000-0001-6112-5550</th>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
-       "      <td>jonathan</td>\n",
-       "      <td>jørgensen</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[v.i. yurtaev; v. yurtaev]</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>...</td>\n",
-       "      <td>NaN</td>\n",
+       "      <td>[[professor, peoples friendship university of ...</td>\n",
        "      <td>0</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>2019-03-17t20:31:23.753z</td>\n",
-       "      <td>2019-03-17t20:33:50.316z</td>\n",
+       "      <td>2018-04-03t07:50:23.358z</td>\n",
+       "      <td>2020-03-18t09:42:44.753z</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>10000002</th>\n",
-       "      <td>0000-0002-1512-9646</td>\n",
+       "      <th>0000-0001-6152-2695</th>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
-       "      <td>jonathan</td>\n",
-       "      <td>mkrtchyan</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>...</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>1</td>\n",
-       "      <td>[jonathan mkrtchyan]</td>\n",
-       "      <td>2020-08-24t18:47:27.332z</td>\n",
-       "      <td>2020-08-24t18:54:37.398z</td>\n",
-       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2019-12-11t15:31:56.388z</td>\n",
+       "      <td>2020-01-28t15:34:17.309z</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>10000003</th>\n",
-       "      <td>0000-0002-2271-4069</td>\n",
+       "      <th>0000-0001-6220-5683</th>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
-       "      <td>jonathan</td>\n",
-       "      <td>pickard</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>...</td>\n",
        "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[research scientist, new york university abu ...</td>\n",
        "      <td>0</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>2018-05-03t09:34:25.613z</td>\n",
-       "      <td>2018-05-10t13:05:09.297z</td>\n",
+       "      <td>2015-08-18t12:36:45.307z</td>\n",
+       "      <td>2020-09-23t13:37:54.180z</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>10000004</th>\n",
-       "      <td>0000-0002-3054-9622</td>\n",
+       "      <th>0000-0001-7071-8294</th>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
        "      <td>1</td>\n",
-       "      <td>jonathan</td>\n",
-       "      <td>greer</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>[jonathan s. greer]</td>\n",
        "      <td>NaN</td>\n",
        "      <td>NaN</td>\n",
-       "      <td>...</td>\n",
-       "      <td>[[associate professor of old testament and dir...</td>\n",
-       "      <td>2</td>\n",
-       "      <td>[multidisciplinary digital publishing institut...</td>\n",
-       "      <td>2019-04-09t20:05:25.447z</td>\n",
-       "      <td>2020-02-07t15:55:18.951z</td>\n",
-       "      <td>2</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[researcher (academic), universidad de zarago...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2014-03-10t13:22:01.966z</td>\n",
+       "      <td>2016-06-14t22:17:54.470z</td>\n",
        "      <td>0</td>\n",
        "      <td>0</td>\n",
-       "      <td>1</td>\n",
-       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2.0</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
-       "<p>5 rows × 24 columns</p>\n",
        "</div>"
       ],
       "text/plain": [
-       "                        orcid  claimed  verified_email  \\\n",
-       "10000000  0000-0001-9812-9790        1               1   \n",
-       "10000001  0000-0002-0572-0598        1               1   \n",
-       "10000002  0000-0002-1512-9646        1               1   \n",
-       "10000003  0000-0002-2271-4069        1               1   \n",
-       "10000004  0000-0002-3054-9622        1               1   \n",
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0001-6097-3953      1               0                       0   \n",
+       "0000-0001-6112-5550      1               1                       1   \n",
+       "0000-0001-6152-2695      1               1                       1   \n",
+       "0000-0001-6220-5683      1               1                       1   \n",
+       "0000-0001-7071-8294      1               1                       1   \n",
        "\n",
-       "          verified_primary_email given_names family_name biography  \\\n",
-       "10000000                       1    jonathan     termaat       NaN   \n",
-       "10000001                       1    jonathan   jørgensen       NaN   \n",
-       "10000002                       1    jonathan   mkrtchyan       NaN   \n",
-       "10000003                       1    jonathan     pickard       NaN   \n",
-       "10000004                       1    jonathan       greer       NaN   \n",
+       "                    given_names family_name biography  \\\n",
+       "0000-0001-6097-3953         NaN         NaN       NaN   \n",
+       "0000-0001-6112-5550         NaN         NaN       NaN   \n",
+       "0000-0001-6152-2695         NaN         NaN       NaN   \n",
+       "0000-0001-6220-5683         NaN         NaN       NaN   \n",
+       "0000-0001-7071-8294         NaN         NaN       NaN   \n",
        "\n",
-       "                  other_names urls primary_email  ...  \\\n",
-       "10000000                  NaN  NaN           NaN  ...   \n",
-       "10000001                  NaN  NaN           NaN  ...   \n",
-       "10000002                  NaN  NaN           NaN  ...   \n",
-       "10000003                  NaN  NaN           NaN  ...   \n",
-       "10000004  [jonathan s. greer]  NaN           NaN  ...   \n",
+       "                                    other_names primary_email keywords  \\\n",
+       "0000-0001-6097-3953                         NaN           NaN      NaN   \n",
+       "0000-0001-6112-5550  [v.i. yurtaev; v. yurtaev]           NaN      NaN   \n",
+       "0000-0001-6152-2695                         NaN           NaN      NaN   \n",
+       "0000-0001-6220-5683                         NaN           NaN      NaN   \n",
+       "0000-0001-7071-8294                         NaN           NaN      NaN   \n",
        "\n",
-       "                                                 employment n_works  \\\n",
-       "10000000  [[research co-ordinator, waikato district heal...       0   \n",
-       "10000001                                                NaN       0   \n",
-       "10000002                                                NaN       1   \n",
-       "10000003                                                NaN       0   \n",
-       "10000004  [[associate professor of old testament and dir...       2   \n",
+       "                    external_ids education  \\\n",
+       "0000-0001-6097-3953          NaN       NaN   \n",
+       "0000-0001-6112-5550          NaN       NaN   \n",
+       "0000-0001-6152-2695          NaN       NaN   \n",
+       "0000-0001-6220-5683          NaN       NaN   \n",
+       "0000-0001-7071-8294          NaN       NaN   \n",
        "\n",
-       "                                               works_source  \\\n",
-       "10000000                                                NaN   \n",
-       "10000001                                                NaN   \n",
-       "10000002                               [jonathan mkrtchyan]   \n",
-       "10000003                                                NaN   \n",
-       "10000004  [multidisciplinary digital publishing institut...   \n",
+       "                                                            employment  \\\n",
+       "0000-0001-6097-3953                                                NaN   \n",
+       "0000-0001-6112-5550  [[professor, peoples friendship university of ...   \n",
+       "0000-0001-6152-2695                                                NaN   \n",
+       "0000-0001-6220-5683  [[research scientist, new york university abu ...   \n",
+       "0000-0001-7071-8294  [[researcher (academic), universidad de zarago...   \n",
        "\n",
-       "                   activation_date          last_update_date  n_doi n_arxiv  \\\n",
-       "10000000  2019-04-15t03:08:05.268z  2019-04-15t03:09:44.443z      0       0   \n",
-       "10000001  2019-03-17t20:31:23.753z  2019-03-17t20:33:50.316z      0       0   \n",
-       "10000002  2020-08-24t18:47:27.332z  2020-08-24t18:54:37.398z      1       0   \n",
-       "10000003  2018-05-03t09:34:25.613z  2018-05-10t13:05:09.297z      0       0   \n",
-       "10000004  2019-04-09t20:05:25.447z  2020-02-07t15:55:18.951z      2       0   \n",
+       "                     n_works works_source           activation_date  \\\n",
+       "0000-0001-6097-3953        0          NaN  2018-03-02t09:29:16.528z   \n",
+       "0000-0001-6112-5550        0          NaN  2018-04-03t07:50:23.358z   \n",
+       "0000-0001-6152-2695        0          NaN  2019-12-11t15:31:56.388z   \n",
+       "0000-0001-6220-5683        0          NaN  2015-08-18t12:36:45.307z   \n",
+       "0000-0001-7071-8294        0          NaN  2014-03-10t13:22:01.966z   \n",
        "\n",
-       "         n_pmc n_other_pids  label  \n",
-       "10000000     0            0      0  \n",
-       "10000001     0            0      0  \n",
-       "10000002     0            2      1  \n",
-       "10000003     0            0      0  \n",
-       "10000004     0            1      1  \n",
+       "                             last_update_date  n_doi  n_arxiv  n_pmc  \\\n",
+       "0000-0001-6097-3953  2018-03-02t09:43:07.551z      0        0      0   \n",
+       "0000-0001-6112-5550  2020-03-18t09:42:44.753z      0        0      0   \n",
+       "0000-0001-6152-2695  2020-01-28t15:34:17.309z      0        0      0   \n",
+       "0000-0001-6220-5683  2020-09-23t13:37:54.180z      0        0      0   \n",
+       "0000-0001-7071-8294  2016-06-14t22:17:54.470z      0        0      0   \n",
        "\n",
-       "[5 rows x 24 columns]"
+       "                     n_other_pids  label primary_email_domain  \\\n",
+       "0000-0001-6097-3953             0      0                  NaN   \n",
+       "0000-0001-6112-5550             0      0                  NaN   \n",
+       "0000-0001-6152-2695             0      0                  NaN   \n",
+       "0000-0001-6220-5683             0      0                  NaN   \n",
+       "0000-0001-7071-8294             0      0                  NaN   \n",
+       "\n",
+       "                    other_email_domains url_domains  n_emails  n_urls  n_ids  \\\n",
+       "0000-0001-6097-3953                 NaN         NaN       NaN     NaN    NaN   \n",
+       "0000-0001-6112-5550                 NaN         NaN       NaN     NaN    NaN   \n",
+       "0000-0001-6152-2695                 NaN         NaN       NaN     NaN    NaN   \n",
+       "0000-0001-6220-5683                 NaN         NaN       NaN     NaN    NaN   \n",
+       "0000-0001-7071-8294                 NaN         NaN       NaN     NaN    NaN   \n",
+       "\n",
+       "                     n_keywords  n_education  n_employment  \n",
+       "0000-0001-6097-3953         NaN          NaN           NaN  \n",
+       "0000-0001-6112-5550         NaN          NaN           1.0  \n",
+       "0000-0001-6152-2695         NaN          NaN           NaN  \n",
+       "0000-0001-6220-5683         NaN          NaN           1.0  \n",
+       "0000-0001-7071-8294         NaN          NaN           2.0  "
       ]
      },
      "execution_count": 5,
@@ -370,7 +447,8 @@
    ],
    "source": [
     "parts = glob.glob('../data/processed/dataset.pkl.*')\n",
-    "df = pd.concat((pd.read_pickle(part) for part in parts))\n",
+    "\n",
+    "df = pd.concat((pd.read_pickle(part) for part in sorted(parts)))\n",
     "df.head(5)"
    ]
   },
@@ -408,16 +486,16 @@
        "    <tr style=\"text-align: right;\">\n",
        "      <th></th>\n",
        "      <th>orcid</th>\n",
-       "      <th>claimed</th>\n",
        "      <th>verified_email</th>\n",
        "      <th>verified_primary_email</th>\n",
        "      <th>given_names</th>\n",
        "      <th>family_name</th>\n",
        "      <th>biography</th>\n",
        "      <th>other_names</th>\n",
-       "      <th>urls</th>\n",
        "      <th>primary_email</th>\n",
-       "      <th>...</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
        "      <th>employment</th>\n",
        "      <th>n_works</th>\n",
        "      <th>works_source</th>\n",
@@ -428,67 +506,26 @@
        "      <th>n_pmc</th>\n",
        "      <th>n_other_pids</th>\n",
        "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
        "    </tr>\n",
        "  </thead>\n",
        "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>1575869</th>\n",
-       "      <td>0000-0002-5193-7851</td>\n",
-       "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>andrea</td>\n",
-       "      <td>mannocci</td>\n",
-       "      <td>data scientist &amp; researcher; scholarly knowled...</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>[[personal website, https://andremann.github.i...</td>\n",
-       "      <td>andrea.mannocci@isti.cnr.it</td>\n",
-       "      <td>...</td>\n",
-       "      <td>[[research associate, istituto di scienza e te...</td>\n",
-       "      <td>37</td>\n",
-       "      <td>[scopus - elsevier, crossref metadata search, ...</td>\n",
-       "      <td>2017-09-12t14:28:33.467z</td>\n",
-       "      <td>2021-03-09t08:32:47.840z</td>\n",
-       "      <td>34</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>60</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
-       "<p>1 rows × 24 columns</p>\n",
        "</div>"
       ],
       "text/plain": [
-       "                       orcid  claimed  verified_email  verified_primary_email  \\\n",
-       "1575869  0000-0002-5193-7851        1               1                       1   \n",
-       "\n",
-       "        given_names family_name  \\\n",
-       "1575869      andrea    mannocci   \n",
-       "\n",
-       "                                                 biography other_names  \\\n",
-       "1575869  data scientist & researcher; scholarly knowled...         NaN   \n",
-       "\n",
-       "                                                      urls  \\\n",
-       "1575869  [[personal website, https://andremann.github.i...   \n",
-       "\n",
-       "                       primary_email  ...  \\\n",
-       "1575869  andrea.mannocci@isti.cnr.it  ...   \n",
-       "\n",
-       "                                                employment n_works  \\\n",
-       "1575869  [[research associate, istituto di scienza e te...      37   \n",
-       "\n",
-       "                                              works_source  \\\n",
-       "1575869  [scopus - elsevier, crossref metadata search, ...   \n",
-       "\n",
-       "                  activation_date          last_update_date  n_doi n_arxiv  \\\n",
-       "1575869  2017-09-12t14:28:33.467z  2021-03-09t08:32:47.840z     34       0   \n",
-       "\n",
-       "        n_pmc n_other_pids  label  \n",
-       "1575869     0           60      1  \n",
-       "\n",
-       "[1 rows x 24 columns]"
+       "Empty DataFrame\n",
+       "Columns: [orcid, verified_email, verified_primary_email, given_names, family_name, biography, other_names, primary_email, keywords, external_ids, education, employment, n_works, works_source, activation_date, last_update_date, n_doi, n_arxiv, n_pmc, n_other_pids, label, primary_email_domain, other_email_domains, url_domains, n_emails, n_urls, n_ids, n_keywords, n_education, n_employment]\n",
+       "Index: []"
       ]
      },
      "execution_count": 6,
@@ -527,16 +564,16 @@
        "    <tr style=\"text-align: right;\">\n",
        "      <th></th>\n",
        "      <th>orcid</th>\n",
-       "      <th>claimed</th>\n",
        "      <th>verified_email</th>\n",
        "      <th>verified_primary_email</th>\n",
        "      <th>given_names</th>\n",
        "      <th>family_name</th>\n",
        "      <th>biography</th>\n",
        "      <th>other_names</th>\n",
-       "      <th>urls</th>\n",
        "      <th>primary_email</th>\n",
-       "      <th>...</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
        "      <th>employment</th>\n",
        "      <th>n_works</th>\n",
        "      <th>works_source</th>\n",
@@ -547,55 +584,26 @@
        "      <th>n_pmc</th>\n",
        "      <th>n_other_pids</th>\n",
        "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
        "    </tr>\n",
        "  </thead>\n",
        "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>6819986</th>\n",
-       "      <td>0000-0001-6997-9470</td>\n",
-       "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>other</td>\n",
-       "      <td>whatsapp</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>[[otherwhatsapp, https://otherwhatsapp.com/], ...</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>...</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>0</td>\n",
-       "      <td>NaN</td>\n",
-       "      <td>2020-10-07t10:37:12.237z</td>\n",
-       "      <td>2020-10-08t02:32:03.935z</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
-       "<p>1 rows × 24 columns</p>\n",
        "</div>"
       ],
       "text/plain": [
-       "                       orcid  claimed  verified_email  verified_primary_email  \\\n",
-       "6819986  0000-0001-6997-9470        1               1                       1   \n",
-       "\n",
-       "        given_names family_name biography other_names  \\\n",
-       "6819986       other    whatsapp       NaN         NaN   \n",
-       "\n",
-       "                                                      urls primary_email  ...  \\\n",
-       "6819986  [[otherwhatsapp, https://otherwhatsapp.com/], ...           NaN  ...   \n",
-       "\n",
-       "        employment n_works works_source           activation_date  \\\n",
-       "6819986        NaN       0          NaN  2020-10-07t10:37:12.237z   \n",
-       "\n",
-       "                 last_update_date  n_doi n_arxiv n_pmc n_other_pids  label  \n",
-       "6819986  2020-10-08t02:32:03.935z      0       0     0            0      0  \n",
-       "\n",
-       "[1 rows x 24 columns]"
+       "Empty DataFrame\n",
+       "Columns: [orcid, verified_email, verified_primary_email, given_names, family_name, biography, other_names, primary_email, keywords, external_ids, education, employment, n_works, works_source, activation_date, last_update_date, n_doi, n_arxiv, n_pmc, n_other_pids, label, primary_email_domain, other_email_domains, url_domains, n_emails, n_urls, n_ids, n_keywords, n_education, n_employment]\n",
+       "Index: []"
       ]
      },
      "execution_count": 7,
@@ -609,18 +617,80 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "execution_count": 8,
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "orcid                     10916574\n",
+       "verified_email            10916574\n",
+       "verified_primary_email    10916574\n",
+       "given_names               10886150\n",
+       "family_name               10601571\n",
+       "biography                   348649\n",
+       "other_names                 551482\n",
+       "primary_email               123851\n",
+       "keywords                    646400\n",
+       "external_ids               1301959\n",
+       "education                  2430233\n",
+       "employment                 2665092\n",
+       "n_works                   10916574\n",
+       "works_source               2721431\n",
+       "activation_date           10916574\n",
+       "last_update_date          10916574\n",
+       "n_doi                     10916574\n",
+       "n_arxiv                   10916574\n",
+       "n_pmc                     10916574\n",
+       "n_other_pids              10916574\n",
+       "label                     10916574\n",
+       "primary_email_domain        123851\n",
+       "other_email_domains          48306\n",
+       "url_domains                 707687\n",
+       "n_emails                     48306\n",
+       "n_urls                      707687\n",
+       "n_ids                      1301959\n",
+       "n_keywords                  646400\n",
+       "n_education                2430233\n",
+       "n_employment               2665092\n",
+       "dtype: int64"
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df.count() #10916574"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 9,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "count    10916574.0\n",
+       "mean            1.0\n",
+       "std             0.0\n",
+       "min             1.0\n",
+       "25%             1.0\n",
+       "50%             1.0\n",
+       "75%             1.0\n",
+       "max             1.0\n",
+       "Name: orcid, dtype: float64"
+      ]
+     },
+     "execution_count": 9,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df['orcid'].describe()"
    ]
@@ -634,9 +704,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 10,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "count               123851\n",
+       "unique              123848\n",
+       "top       maykin@owasp.org\n",
+       "freq                     2\n",
+       "Name: primary_email, dtype: object"
+      ]
+     },
+     "execution_count": 10,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df['primary_email'].describe()"
    ]
@@ -650,63 +735,693 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 11,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "0000-0003-0033-0918      opercin@erbakan.edu.tr\n",
+       "0000-0002-8774-0030    patrick.davey@monash.edu\n",
+       "0000-0001-9855-1676            maykin@owasp.org\n",
+       "Name: primary_email, dtype: object"
+      ]
+     },
+     "execution_count": 11,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df['primary_email'].dropna().loc[df['primary_email'].duplicated()]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 12,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "\n",
+       "    .dataframe tbody tr th {\n",
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+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
+       "      <th>given_names</th>\n",
+       "      <th>family_name</th>\n",
+       "      <th>biography</th>\n",
+       "      <th>other_names</th>\n",
+       "      <th>primary_email</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
+       "      <th>employment</th>\n",
+       "      <th>n_works</th>\n",
+       "      <th>works_source</th>\n",
+       "      <th>activation_date</th>\n",
+       "      <th>last_update_date</th>\n",
+       "      <th>n_doi</th>\n",
+       "      <th>n_arxiv</th>\n",
+       "      <th>n_pmc</th>\n",
+       "      <th>n_other_pids</th>\n",
+       "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-0836-2271</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>maykin</td>\n",
+       "      <td>warasart</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>maykin@owasp.org</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-09-15t04:43:55.709z</td>\n",
+       "      <td>2020-09-15t05:17:28.509z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>owasp.org</td>\n",
+       "      <td>[dga.or.th]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-9855-1676</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>maykin</td>\n",
+       "      <td>warasart</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>maykin@owasp.org</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-10-23t17:51:51.925z</td>\n",
+       "      <td>2021-01-01t15:00:52.053z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>owasp.org</td>\n",
+       "      <td>[dga.or.th, ieee.org]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0002-0836-2271      1               1                       1   \n",
+       "0000-0001-9855-1676      1               1                       1   \n",
+       "\n",
+       "                    given_names family_name biography other_names  \\\n",
+       "0000-0002-0836-2271      maykin    warasart       NaN         NaN   \n",
+       "0000-0001-9855-1676      maykin    warasart       NaN         NaN   \n",
+       "\n",
+       "                        primary_email keywords external_ids education  \\\n",
+       "0000-0002-0836-2271  maykin@owasp.org      NaN          NaN       NaN   \n",
+       "0000-0001-9855-1676  maykin@owasp.org      NaN          NaN       NaN   \n",
+       "\n",
+       "                    employment  n_works works_source  \\\n",
+       "0000-0002-0836-2271        NaN        0          NaN   \n",
+       "0000-0001-9855-1676        NaN        0          NaN   \n",
+       "\n",
+       "                              activation_date          last_update_date  \\\n",
+       "0000-0002-0836-2271  2020-09-15t04:43:55.709z  2020-09-15t05:17:28.509z   \n",
+       "0000-0001-9855-1676  2020-10-23t17:51:51.925z  2021-01-01t15:00:52.053z   \n",
+       "\n",
+       "                     n_doi  n_arxiv  n_pmc  n_other_pids  label  \\\n",
+       "0000-0002-0836-2271      0        0      0             0      0   \n",
+       "0000-0001-9855-1676      0        0      0             0      0   \n",
+       "\n",
+       "                    primary_email_domain    other_email_domains url_domains  \\\n",
+       "0000-0002-0836-2271            owasp.org            [dga.or.th]         NaN   \n",
+       "0000-0001-9855-1676            owasp.org  [dga.or.th, ieee.org]         NaN   \n",
+       "\n",
+       "                     n_emails  n_urls  n_ids  n_keywords  n_education  \\\n",
+       "0000-0002-0836-2271       1.0     NaN    NaN         NaN          NaN   \n",
+       "0000-0001-9855-1676       2.0     NaN    NaN         NaN          NaN   \n",
+       "\n",
+       "                     n_employment  \n",
+       "0000-0002-0836-2271           NaN  \n",
+       "0000-0001-9855-1676           NaN  "
+      ]
+     },
+     "execution_count": 12,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df[df['primary_email'] == 'maykin@owasp.org']"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 13,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
+       "      <th>given_names</th>\n",
+       "      <th>family_name</th>\n",
+       "      <th>biography</th>\n",
+       "      <th>other_names</th>\n",
+       "      <th>primary_email</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
+       "      <th>employment</th>\n",
+       "      <th>n_works</th>\n",
+       "      <th>works_source</th>\n",
+       "      <th>activation_date</th>\n",
+       "      <th>last_update_date</th>\n",
+       "      <th>n_doi</th>\n",
+       "      <th>n_arxiv</th>\n",
+       "      <th>n_pmc</th>\n",
+       "      <th>n_other_pids</th>\n",
+       "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-2232-9638</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>osman</td>\n",
+       "      <td>perçin</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>opercin@erbakan.edu.tr</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2015-01-12t13:47:55.549z</td>\n",
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+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-0033-0918</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>osman</td>\n",
+       "      <td>perçin</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>opercin@erbakan.edu.tr</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, necmettin erbakan university, konya, , tr,...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2015-10-13t05:47:12.014z</td>\n",
+       "      <td>2020-12-25t13:52:03.976z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>erbakan.edu.tr</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0002-2232-9638      1               1                       1   \n",
+       "0000-0003-0033-0918      1               1                       1   \n",
+       "\n",
+       "                    given_names family_name biography other_names  \\\n",
+       "0000-0002-2232-9638       osman      perçin       NaN         NaN   \n",
+       "0000-0003-0033-0918       osman      perçin       NaN         NaN   \n",
+       "\n",
+       "                              primary_email keywords external_ids education  \\\n",
+       "0000-0002-2232-9638  opercin@erbakan.edu.tr      NaN          NaN       NaN   \n",
+       "0000-0003-0033-0918  opercin@erbakan.edu.tr      NaN          NaN       NaN   \n",
+       "\n",
+       "                                                            employment  \\\n",
+       "0000-0002-2232-9638                                                NaN   \n",
+       "0000-0003-0033-0918  [[, necmettin erbakan university, konya, , tr,...   \n",
+       "\n",
+       "                     n_works works_source           activation_date  \\\n",
+       "0000-0002-2232-9638        0          NaN  2015-01-12t13:47:55.549z   \n",
+       "0000-0003-0033-0918        0          NaN  2015-10-13t05:47:12.014z   \n",
+       "\n",
+       "                             last_update_date  n_doi  n_arxiv  n_pmc  \\\n",
+       "0000-0002-2232-9638  2020-01-27t07:38:24.269z      0        0      0   \n",
+       "0000-0003-0033-0918  2020-12-25t13:52:03.976z      0        0      0   \n",
+       "\n",
+       "                     n_other_pids  label primary_email_domain  \\\n",
+       "0000-0002-2232-9638             0      0       erbakan.edu.tr   \n",
+       "0000-0003-0033-0918             0      0       erbakan.edu.tr   \n",
+       "\n",
+       "                    other_email_domains url_domains  n_emails  n_urls  n_ids  \\\n",
+       "0000-0002-2232-9638                 NaN         NaN       NaN     NaN    NaN   \n",
+       "0000-0003-0033-0918                 NaN         NaN       NaN     NaN    NaN   \n",
+       "\n",
+       "                     n_keywords  n_education  n_employment  \n",
+       "0000-0002-2232-9638         NaN          NaN           NaN  \n",
+       "0000-0003-0033-0918         NaN          NaN           1.0  "
+      ]
+     },
+     "execution_count": 13,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df[df['primary_email'] == 'opercin@erbakan.edu.tr']"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 14,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
+       "      <th>given_names</th>\n",
+       "      <th>family_name</th>\n",
+       "      <th>biography</th>\n",
+       "      <th>other_names</th>\n",
+       "      <th>primary_email</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
+       "      <th>employment</th>\n",
+       "      <th>n_works</th>\n",
+       "      <th>works_source</th>\n",
+       "      <th>activation_date</th>\n",
+       "      <th>last_update_date</th>\n",
+       "      <th>n_doi</th>\n",
+       "      <th>n_arxiv</th>\n",
+       "      <th>n_pmc</th>\n",
+       "      <th>n_other_pids</th>\n",
+       "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-9158-1757</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>patrick</td>\n",
+       "      <td>davey</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>patrick.davey@monash.edu</td>\n",
+       "      <td>[radiochemistry, bioinorganic chemistry, inorg...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[phd student, monash university, melbourne, ,...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2019-05-09t23:01:02.170z</td>\n",
+       "      <td>2019-08-20t03:00:17.844z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>monash.edu</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-8774-0030</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>patrick</td>\n",
+       "      <td>davey</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>patrick.davey@monash.edu</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[phd student, monash university, melbourne, v...</td>\n",
+       "      <td>1</td>\n",
+       "      <td>[crossref]</td>\n",
+       "      <td>2018-09-11t10:47:10.997z</td>\n",
+       "      <td>2021-02-09t06:21:44.138z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>monash.edu</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0002-9158-1757      1               1                       1   \n",
+       "0000-0002-8774-0030      1               1                       1   \n",
+       "\n",
+       "                    given_names family_name biography other_names  \\\n",
+       "0000-0002-9158-1757     patrick       davey       NaN         NaN   \n",
+       "0000-0002-8774-0030     patrick       davey       NaN         NaN   \n",
+       "\n",
+       "                                primary_email  \\\n",
+       "0000-0002-9158-1757  patrick.davey@monash.edu   \n",
+       "0000-0002-8774-0030  patrick.davey@monash.edu   \n",
+       "\n",
+       "                                                              keywords  \\\n",
+       "0000-0002-9158-1757  [radiochemistry, bioinorganic chemistry, inorg...   \n",
+       "0000-0002-8774-0030                                                NaN   \n",
+       "\n",
+       "                    external_ids education  \\\n",
+       "0000-0002-9158-1757          NaN       NaN   \n",
+       "0000-0002-8774-0030          NaN       NaN   \n",
+       "\n",
+       "                                                            employment  \\\n",
+       "0000-0002-9158-1757  [[phd student, monash university, melbourne, ,...   \n",
+       "0000-0002-8774-0030  [[phd student, monash university, melbourne, v...   \n",
+       "\n",
+       "                     n_works works_source           activation_date  \\\n",
+       "0000-0002-9158-1757        0          NaN  2019-05-09t23:01:02.170z   \n",
+       "0000-0002-8774-0030        1   [crossref]  2018-09-11t10:47:10.997z   \n",
+       "\n",
+       "                             last_update_date  n_doi  n_arxiv  n_pmc  \\\n",
+       "0000-0002-9158-1757  2019-08-20t03:00:17.844z      0        0      0   \n",
+       "0000-0002-8774-0030  2021-02-09t06:21:44.138z      1        0      0   \n",
+       "\n",
+       "                     n_other_pids  label primary_email_domain  \\\n",
+       "0000-0002-9158-1757             0      0           monash.edu   \n",
+       "0000-0002-8774-0030             0      0           monash.edu   \n",
+       "\n",
+       "                    other_email_domains url_domains  n_emails  n_urls  n_ids  \\\n",
+       "0000-0002-9158-1757                 NaN         NaN       NaN     NaN    NaN   \n",
+       "0000-0002-8774-0030                 NaN         NaN       NaN     NaN    NaN   \n",
+       "\n",
+       "                     n_keywords  n_education  n_employment  \n",
+       "0000-0002-9158-1757         4.0          NaN           1.0  \n",
+       "0000-0002-8774-0030         NaN          NaN           1.0  "
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df[df['primary_email'] == 'patrick.davey@monash.edu']"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 15,
    "metadata": {},
-   "outputs": [],
-   "source": [
-    "df['primary_email_domain'] = df[df.primary_email.notna()]['primary_email'].apply(lambda x: x.split('@')[1])"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "count        123851\n",
+       "unique        17089\n",
+       "top       gmail.com\n",
+       "freq          26540\n",
+       "Name: primary_email_domain, dtype: object"
+      ]
+     },
+     "execution_count": 15,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df['primary_email_domain'].describe()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 16,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
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+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>gmail.com</th>\n",
+       "      <td>26540</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>hotmail.com</th>\n",
+       "      <td>3769</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>yahoo.com</th>\n",
+       "      <td>2614</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>163.com</th>\n",
+       "      <td>2109</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>yuhs.ac</th>\n",
+       "      <td>1132</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>imean-biotech.com</th>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>imec.msu.ru</th>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>imedea.uib-csic.es</th>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>imes.uni-hannover.de</th>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>zzuli.edu.cn</th>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>17089 rows × 1 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                      orcid\n",
+       "primary_email_domain       \n",
+       "gmail.com             26540\n",
+       "hotmail.com            3769\n",
+       "yahoo.com              2614\n",
+       "163.com                2109\n",
+       "yuhs.ac                1132\n",
+       "...                     ...\n",
+       "imean-biotech.com         1\n",
+       "imec.msu.ru               1\n",
+       "imedea.uib-csic.es        1\n",
+       "imes.uni-hannover.de      1\n",
+       "zzuli.edu.cn              1\n",
+       "\n",
+       "[17089 rows x 1 columns]"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "top_primary_emails = df[['primary_email_domain', 'orcid']]\\\n",
     "                .groupby('primary_email_domain')\\\n",
@@ -717,9 +1432,940 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 17,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
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+     "data": {
+      "application/vnd.plotly.v1+json": {
+       "config": {
+        "linkText": "Export to plot.ly",
+        "plotlyServerURL": "https://plot.ly",
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+          "126.com",
+          "bu.edu",
+          "usgs.gov",
+          "mail.ru",
+          "yahoo.com.br",
+          "usp.br",
+          "ua.pt",
+          "umich.edu",
+          "ust.hk",
+          "foxmail.com",
+          "uomustansiriyah.edu.iq",
+          "yandex.ru",
+          "uq.edu.au",
+          "ukr.net",
+          "unesp.br",
+          "ucl.ac.uk",
+          "ieee.org",
+          "naver.com",
+          "st-annes.ox.ac.uk",
+          "stcatz.ox.ac.uk",
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+       "                            \n",
+       "var gd = document.getElementById('cf28fbb7-7903-496c-adf0-fc846ff1c434');\n",
+       "var x = new MutationObserver(function (mutations, observer) {{\n",
+       "        var display = window.getComputedStyle(gd).display;\n",
+       "        if (!display || display === 'none') {{\n",
+       "            console.log([gd, 'removed!']);\n",
+       "            Plotly.purge(gd);\n",
+       "            observer.disconnect();\n",
+       "        }}\n",
+       "}});\n",
+       "\n",
+       "// Listen for the removal of the full notebook cells\n",
+       "var notebookContainer = gd.closest('#notebook-container');\n",
+       "if (notebookContainer) {{\n",
+       "    x.observe(notebookContainer, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "// Listen for the clearing of the current output cell\n",
+       "var outputEl = gd.closest('.output');\n",
+       "if (outputEl) {{\n",
+       "    x.observe(outputEl, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "                        })                };                });            </script>        </div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "set_top_n(30)\n",
     "data = [\n",
@@ -746,49 +2392,353 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "def extract_email_domains(lst):\n",
-    "    res = []\n",
-    "    for email in lst:\n",
-    "        res.append(email.split('@')[1])\n",
-    "    return res"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df['other_email_domains'] = df[df.other_emails.notna()]['other_emails'].apply(lambda x: extract_email_domains(x))"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 18,
    "metadata": {
     "scrolled": true
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
+       "      <th>given_names</th>\n",
+       "      <th>family_name</th>\n",
+       "      <th>biography</th>\n",
+       "      <th>other_names</th>\n",
+       "      <th>primary_email</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
+       "      <th>employment</th>\n",
+       "      <th>n_works</th>\n",
+       "      <th>works_source</th>\n",
+       "      <th>activation_date</th>\n",
+       "      <th>last_update_date</th>\n",
+       "      <th>n_doi</th>\n",
+       "      <th>n_arxiv</th>\n",
+       "      <th>n_pmc</th>\n",
+       "      <th>n_other_pids</th>\n",
+       "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-5916-446X</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>antonio gilvan</td>\n",
+       "      <td>teixeira júnior</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[teixeira, antônio gilvan, júnior, antonio gil...</td>\n",
+       "      <td>gilvan.junior@aluno.ufca.edu.br</td>\n",
+       "      <td>[ethicis; medicine; infectology; neurology; ne...</td>\n",
+       "      <td>[[scopus author id, 56647743200], [scopus auth...</td>\n",
+       "      <td>[[faculty of health and life sciences, , unive...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>14</td>\n",
+       "      <td>[antonio gilvan teixeira júnior, scopus - else...</td>\n",
+       "      <td>2016-05-18t11:26:36.642z</td>\n",
+       "      <td>2016-09-20t18:25:05.728z</td>\n",
+       "      <td>13</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>8</td>\n",
+       "      <td>0</td>\n",
+       "      <td>aluno.ufca.edu.br</td>\n",
+       "      <td>[liverpool.ac.uk]</td>\n",
+       "      <td>[researchgate.net, academia.edu, cnpq.br]</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-8742-947X</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>aaron</td>\n",
+       "      <td>tan shing loong</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>aaron.tanshingloong@wadh.ox.ac.uk</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[ruskin school of art; wadham college, , univ...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2015-10-05t23:10:08.771z</td>\n",
+       "      <td>2016-06-14t19:55:50.313z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>wadh.ox.ac.uk</td>\n",
+       "      <td>[rsa.ox.ac.uk]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
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+       "    <tr>\n",
+       "      <th>0000-0001-9097-2281</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>abhishek</td>\n",
+       "      <td>solanki</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[senior engineer, robert bosch (india), benga...</td>\n",
+       "      <td>1</td>\n",
+       "      <td>[abhishek solanki]</td>\n",
+       "      <td>2019-04-22t04:43:06.232z</td>\n",
+       "      <td>2020-07-02t14:18:28.305z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[in.bosch.com]</td>\n",
+       "      <td>[github.com, linkedin.com]</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-8614-3007</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>adam</td>\n",
+       "      <td>arra</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2017-11-15t06:33:45.625z</td>\n",
+       "      <td>2017-11-15t06:44:02.998z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[hct.ac.ae]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-9884-5498</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>alberto</td>\n",
+       "      <td>ronzani</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>alberto@aronza.com</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[research scientist, vtt technical research c...</td>\n",
+       "      <td>19</td>\n",
+       "      <td>[crossref metadata search, alberto ronzani, cr...</td>\n",
+       "      <td>2014-04-16t13:21:54.287z</td>\n",
+       "      <td>2020-09-28t15:10:37.439z</td>\n",
+       "      <td>18</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>3</td>\n",
+       "      <td>0</td>\n",
+       "      <td>aronza.com</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0002-5916-446X      1               1                       1   \n",
+       "0000-0002-8742-947X      1               1                       1   \n",
+       "0000-0001-9097-2281      1               1                       1   \n",
+       "0000-0002-8614-3007      1               1                       1   \n",
+       "0000-0001-9884-5498      1               1                       1   \n",
+       "\n",
+       "                        given_names      family_name biography  \\\n",
+       "0000-0002-5916-446X  antonio gilvan  teixeira júnior       NaN   \n",
+       "0000-0002-8742-947X           aaron  tan shing loong       NaN   \n",
+       "0000-0001-9097-2281        abhishek          solanki       NaN   \n",
+       "0000-0002-8614-3007            adam             arra       NaN   \n",
+       "0000-0001-9884-5498         alberto          ronzani       NaN   \n",
+       "\n",
+       "                                                           other_names  \\\n",
+       "0000-0002-5916-446X  [teixeira, antônio gilvan, júnior, antonio gil...   \n",
+       "0000-0002-8742-947X                                                NaN   \n",
+       "0000-0001-9097-2281                                                NaN   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0001-9884-5498                                                NaN   \n",
+       "\n",
+       "                                         primary_email  \\\n",
+       "0000-0002-5916-446X    gilvan.junior@aluno.ufca.edu.br   \n",
+       "0000-0002-8742-947X  aaron.tanshingloong@wadh.ox.ac.uk   \n",
+       "0000-0001-9097-2281                                NaN   \n",
+       "0000-0002-8614-3007                                NaN   \n",
+       "0000-0001-9884-5498                 alberto@aronza.com   \n",
+       "\n",
+       "                                                              keywords  \\\n",
+       "0000-0002-5916-446X  [ethicis; medicine; infectology; neurology; ne...   \n",
+       "0000-0002-8742-947X                                                NaN   \n",
+       "0000-0001-9097-2281                                                NaN   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0001-9884-5498                                                NaN   \n",
+       "\n",
+       "                                                          external_ids  \\\n",
+       "0000-0002-5916-446X  [[scopus author id, 56647743200], [scopus auth...   \n",
+       "0000-0002-8742-947X                                                NaN   \n",
+       "0000-0001-9097-2281                                                NaN   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0001-9884-5498                                                NaN   \n",
+       "\n",
+       "                                                             education  \\\n",
+       "0000-0002-5916-446X  [[faculty of health and life sciences, , unive...   \n",
+       "0000-0002-8742-947X  [[ruskin school of art; wadham college, , univ...   \n",
+       "0000-0001-9097-2281                                                NaN   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0001-9884-5498                                                NaN   \n",
+       "\n",
+       "                                                            employment  \\\n",
+       "0000-0002-5916-446X                                                NaN   \n",
+       "0000-0002-8742-947X                                                NaN   \n",
+       "0000-0001-9097-2281  [[senior engineer, robert bosch (india), benga...   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0001-9884-5498  [[research scientist, vtt technical research c...   \n",
+       "\n",
+       "                     n_works  \\\n",
+       "0000-0002-5916-446X       14   \n",
+       "0000-0002-8742-947X        0   \n",
+       "0000-0001-9097-2281        1   \n",
+       "0000-0002-8614-3007        0   \n",
+       "0000-0001-9884-5498       19   \n",
+       "\n",
+       "                                                          works_source  \\\n",
+       "0000-0002-5916-446X  [antonio gilvan teixeira júnior, scopus - else...   \n",
+       "0000-0002-8742-947X                                                NaN   \n",
+       "0000-0001-9097-2281                                 [abhishek solanki]   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0001-9884-5498  [crossref metadata search, alberto ronzani, cr...   \n",
+       "\n",
+       "                              activation_date          last_update_date  \\\n",
+       "0000-0002-5916-446X  2016-05-18t11:26:36.642z  2016-09-20t18:25:05.728z   \n",
+       "0000-0002-8742-947X  2015-10-05t23:10:08.771z  2016-06-14t19:55:50.313z   \n",
+       "0000-0001-9097-2281  2019-04-22t04:43:06.232z  2020-07-02t14:18:28.305z   \n",
+       "0000-0002-8614-3007  2017-11-15t06:33:45.625z  2017-11-15t06:44:02.998z   \n",
+       "0000-0001-9884-5498  2014-04-16t13:21:54.287z  2020-09-28t15:10:37.439z   \n",
+       "\n",
+       "                     n_doi  n_arxiv  n_pmc  n_other_pids  label  \\\n",
+       "0000-0002-5916-446X     13        0      0             8      0   \n",
+       "0000-0002-8742-947X      0        0      0             0      0   \n",
+       "0000-0001-9097-2281      0        0      0             0      0   \n",
+       "0000-0002-8614-3007      0        0      0             0      0   \n",
+       "0000-0001-9884-5498     18        0      0             3      0   \n",
+       "\n",
+       "                    primary_email_domain other_email_domains  \\\n",
+       "0000-0002-5916-446X    aluno.ufca.edu.br   [liverpool.ac.uk]   \n",
+       "0000-0002-8742-947X        wadh.ox.ac.uk      [rsa.ox.ac.uk]   \n",
+       "0000-0001-9097-2281                  NaN      [in.bosch.com]   \n",
+       "0000-0002-8614-3007                  NaN         [hct.ac.ae]   \n",
+       "0000-0001-9884-5498           aronza.com            [vtt.fi]   \n",
+       "\n",
+       "                                                   url_domains  n_emails  \\\n",
+       "0000-0002-5916-446X  [researchgate.net, academia.edu, cnpq.br]       1.0   \n",
+       "0000-0002-8742-947X                                        NaN       1.0   \n",
+       "0000-0001-9097-2281                 [github.com, linkedin.com]       1.0   \n",
+       "0000-0002-8614-3007                                        NaN       1.0   \n",
+       "0000-0001-9884-5498                                        NaN       1.0   \n",
+       "\n",
+       "                     n_urls  n_ids  n_keywords  n_education  n_employment  \n",
+       "0000-0002-5916-446X     3.0    4.0         1.0          1.0           NaN  \n",
+       "0000-0002-8742-947X     NaN    NaN         NaN          1.0           NaN  \n",
+       "0000-0001-9097-2281     2.0    NaN         NaN          NaN           2.0  \n",
+       "0000-0002-8614-3007     NaN    NaN         NaN          NaN           NaN  \n",
+       "0000-0001-9884-5498     NaN    NaN         NaN          NaN           1.0  "
+      ]
+     },
+     "execution_count": 18,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "df[df['other_email_domains'].notna()].head()"
+    "df[df.other_email_domains.notna()].head()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df['n_emails'] = df['other_emails'].str.len()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 62,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -797,14 +2747,945 @@
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+       "                            \n",
+       "var gd = document.getElementById('79c196c1-30b5-4f62-9271-4d67295246b8');\n",
+       "var x = new MutationObserver(function (mutations, observer) {{\n",
+       "        var display = window.getComputedStyle(gd).display;\n",
+       "        if (!display || display === 'none') {{\n",
+       "            console.log([gd, 'removed!']);\n",
+       "            Plotly.purge(gd);\n",
+       "            observer.disconnect();\n",
+       "        }}\n",
+       "}});\n",
+       "\n",
+       "// Listen for the removal of the full notebook cells\n",
+       "var notebookContainer = gd.closest('#notebook-container');\n",
+       "if (notebookContainer) {{\n",
+       "    x.observe(notebookContainer, {childList: true});\n",
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+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "set_top_n(30)\n",
     "data = [\n",
     "    go.Bar(\n",
-    "        x=emails_by_orcid[:TOP_N]['orcid'],\n",
+    "        x=emails_by_orcid[:TOP_N].index,\n",
     "        y=emails_by_orcid[:TOP_N]['n_emails']\n",
     "    )\n",
     "]\n",
@@ -819,7 +3700,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -833,9 +3714,940 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 22,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
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+          "qq.com",
+          "163.com",
+          "outlook.com",
+          "126.com",
+          "usp.br",
+          "ieee.org",
+          "mail.ru",
+          "yahoo.com.br",
+          "unesp.br",
+          "sbs.ox.ac.uk",
+          "yuhs.ac",
+          "naver.com",
+          "icloud.com",
+          "foxmail.com",
+          "uq.edu.au",
+          "ua.pt",
+          "cam.ac.uk",
+          "imperial.ac.uk",
+          "ukr.net",
+          "law.ox.ac.uk",
+          "mit.edu",
+          "stanford.edu",
+          "monash.edu",
+          "ucl.ac.uk",
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+       "var gd = document.getElementById('283b86e8-f845-41e4-a929-d9a849ca2e5f');\n",
+       "var x = new MutationObserver(function (mutations, observer) {{\n",
+       "        var display = window.getComputedStyle(gd).display;\n",
+       "        if (!display || display === 'none') {{\n",
+       "            console.log([gd, 'removed!']);\n",
+       "            Plotly.purge(gd);\n",
+       "            observer.disconnect();\n",
+       "        }}\n",
+       "}});\n",
+       "\n",
+       "// Listen for the removal of the full notebook cells\n",
+       "var notebookContainer = gd.closest('#notebook-container');\n",
+       "if (notebookContainer) {{\n",
+       "    x.observe(notebookContainer, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "// Listen for the clearing of the current output cell\n",
+       "var outputEl = gd.closest('.output');\n",
+       "if (outputEl) {{\n",
+       "    x.observe(outputEl, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "                        })                };                });            </script>        </div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "set_top_n(30)\n",
     "data = [\n",
@@ -853,6 +4665,13 @@
     "plotly.offline.iplot(fig)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "This somehow makes sense, legitimate users could put the gmail account as primary for login purposes and have institutional addresses as other email addresses. It makes also the life easier upon relocation."
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -862,13 +4681,626 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 25,
    "metadata": {
     "scrolled": true
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
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+       "\n",
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+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
+       "      <th>given_names</th>\n",
+       "      <th>family_name</th>\n",
+       "      <th>biography</th>\n",
+       "      <th>other_names</th>\n",
+       "      <th>primary_email</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
+       "      <th>employment</th>\n",
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+       "      <th>activation_date</th>\n",
+       "      <th>last_update_date</th>\n",
+       "      <th>n_doi</th>\n",
+       "      <th>n_arxiv</th>\n",
+       "      <th>n_pmc</th>\n",
+       "      <th>n_other_pids</th>\n",
+       "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
+       "    </tr>\n",
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+       "      <th>0000-0001-9097-2281</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>abhishek</td>\n",
+       "      <td>solanki</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[senior engineer, robert bosch (india), benga...</td>\n",
+       "      <td>1</td>\n",
+       "      <td>[abhishek solanki]</td>\n",
+       "      <td>2019-04-22t04:43:06.232z</td>\n",
+       "      <td>2020-07-02t14:18:28.305z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[in.bosch.com]</td>\n",
+       "      <td>[github.com, linkedin.com]</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>2.0</td>\n",
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+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>adam</td>\n",
+       "      <td>arra</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2017-11-15t06:33:45.625z</td>\n",
+       "      <td>2017-11-15t06:44:02.998z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>[hct.ac.ae]</td>\n",
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+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-3728-6439</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>alejandra</td>\n",
+       "      <td>echeverry velásquez</td>\n",
+       "      <td>alejandra echeverry is an industrial electrici...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[energy., renewable, science, control, innovat...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, electrical engineer, institución universit...</td>\n",
+       "      <td>[[professor, institución universitaria pascual...</td>\n",
+       "      <td>1</td>\n",
+       "      <td>[crossref]</td>\n",
+       "      <td>2019-03-31t00:00:42.929z</td>\n",
+       "      <td>2020-09-06t02:18:54.290z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[pascualbravo.edu.co]</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
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+       "      <td>1.0</td>\n",
+       "    </tr>\n",
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+       "      <th>0000-0001-8330-7443</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>andrea</td>\n",
+       "      <td>tesoniero</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[researcherid, d-9056-2015]]</td>\n",
+       "      <td>[[department of geophysics, master of science ...</td>\n",
+       "      <td>[[postdoctoral associate, yale university, new...</td>\n",
+       "      <td>4</td>\n",
+       "      <td>[andrea tesoniero]</td>\n",
+       "      <td>2015-03-09t11:59:06.093z</td>\n",
+       "      <td>2020-08-20t15:03:23.447z</td>\n",
+       "      <td>4</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>[yale.edu]</td>\n",
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+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
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+       "    </tr>\n",
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+       "      <th>0000-0001-9670-515X</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
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+       "      <td>esma esin</td>\n",
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+       "      <td>NaN</td>\n",
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+       "      <td>NaN</td>\n",
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+       "      <td>2020-07-26t10:52:26.539z</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>[gmail.com]</td>\n",
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+       "</table>\n",
+       "<p>19692 rows × 30 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0001-9097-2281      1               1                       1   \n",
+       "0000-0002-8614-3007      1               1                       1   \n",
+       "0000-0003-3728-6439      1               1                       1   \n",
+       "0000-0001-8330-7443      1               1                       1   \n",
+       "0000-0001-9670-515X      1               1                       1   \n",
+       "...                    ...             ...                     ...   \n",
+       "0000-0003-1204-6009      1               1                       1   \n",
+       "0000-0002-3472-7668      1               1                       1   \n",
+       "0000-0002-9602-0529      1               1                       1   \n",
+       "0000-0003-4402-5982      1               1                       1   \n",
+       "0000-0002-1734-7241      1               1                       1   \n",
+       "\n",
+       "                        given_names          family_name  \\\n",
+       "0000-0001-9097-2281        abhishek              solanki   \n",
+       "0000-0002-8614-3007            adam                 arra   \n",
+       "0000-0003-3728-6439       alejandra  echeverry velásquez   \n",
+       "0000-0001-8330-7443          andrea            tesoniero   \n",
+       "0000-0001-9670-515X       esma esin             yildirim   \n",
+       "...                             ...                  ...   \n",
+       "0000-0003-1204-6009          nathan                 walk   \n",
+       "0000-0002-3472-7668             raf           vandevelde   \n",
+       "0000-0002-9602-0529  carlos augusto              finelli   \n",
+       "0000-0003-4402-5982          filipe    de almeida araújo   \n",
+       "0000-0002-1734-7241     manareldeen                ahmed   \n",
+       "\n",
+       "                                                             biography  \\\n",
+       "0000-0001-9097-2281                                                NaN   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0003-3728-6439  alejandra echeverry is an industrial electrici...   \n",
+       "0000-0001-8330-7443                                                NaN   \n",
+       "0000-0001-9670-515X                                                NaN   \n",
+       "...                                                                ...   \n",
+       "0000-0003-1204-6009                                                NaN   \n",
+       "0000-0002-3472-7668                                                NaN   \n",
+       "0000-0002-9602-0529                                                NaN   \n",
+       "0000-0003-4402-5982                                                NaN   \n",
+       "0000-0002-1734-7241                                                NaN   \n",
+       "\n",
+       "                    other_names primary_email  \\\n",
+       "0000-0001-9097-2281         NaN           NaN   \n",
+       "0000-0002-8614-3007         NaN           NaN   \n",
+       "0000-0003-3728-6439         NaN           NaN   \n",
+       "0000-0001-8330-7443         NaN           NaN   \n",
+       "0000-0001-9670-515X         NaN           NaN   \n",
+       "...                         ...           ...   \n",
+       "0000-0003-1204-6009         NaN           NaN   \n",
+       "0000-0002-3472-7668         NaN           NaN   \n",
+       "0000-0002-9602-0529         NaN           NaN   \n",
+       "0000-0003-4402-5982         NaN           NaN   \n",
+       "0000-0002-1734-7241         NaN           NaN   \n",
+       "\n",
+       "                                                              keywords  \\\n",
+       "0000-0001-9097-2281                                                NaN   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0003-3728-6439  [energy., renewable, science, control, innovat...   \n",
+       "0000-0001-8330-7443                                                NaN   \n",
+       "0000-0001-9670-515X  [chemical engineering, pharmacognosy, natural ...   \n",
+       "...                                                                ...   \n",
+       "0000-0003-1204-6009                                                NaN   \n",
+       "0000-0002-3472-7668                                                NaN   \n",
+       "0000-0002-9602-0529                                                NaN   \n",
+       "0000-0003-4402-5982                                                NaN   \n",
+       "0000-0002-1734-7241  [atomistic simulation, ai chips, thin films, d...   \n",
+       "\n",
+       "                                      external_ids  \\\n",
+       "0000-0001-9097-2281                            NaN   \n",
+       "0000-0002-8614-3007                            NaN   \n",
+       "0000-0003-3728-6439                            NaN   \n",
+       "0000-0001-8330-7443  [[researcherid, d-9056-2015]]   \n",
+       "0000-0001-9670-515X                            NaN   \n",
+       "...                                            ...   \n",
+       "0000-0003-1204-6009                            NaN   \n",
+       "0000-0002-3472-7668                            NaN   \n",
+       "0000-0002-9602-0529                            NaN   \n",
+       "0000-0003-4402-5982                            NaN   \n",
+       "0000-0002-1734-7241                            NaN   \n",
+       "\n",
+       "                                                             education  \\\n",
+       "0000-0001-9097-2281                                                NaN   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0003-3728-6439  [[, electrical engineer, institución universit...   \n",
+       "0000-0001-8330-7443  [[department of geophysics, master of science ...   \n",
+       "0000-0001-9670-515X  [[business management, master of science, ista...   \n",
+       "...                                                                ...   \n",
+       "0000-0003-1204-6009  [[department of physics, doctor of philosophy,...   \n",
+       "0000-0002-3472-7668  [[chemical engineering technology, master, kat...   \n",
+       "0000-0002-9602-0529                                                NaN   \n",
+       "0000-0003-4402-5982  [[materials science, msc. materials science, m...   \n",
+       "0000-0002-1734-7241                                                NaN   \n",
+       "\n",
+       "                                                            employment  \\\n",
+       "0000-0001-9097-2281  [[senior engineer, robert bosch (india), benga...   \n",
+       "0000-0002-8614-3007                                                NaN   \n",
+       "0000-0003-3728-6439  [[professor, institución universitaria pascual...   \n",
+       "0000-0001-8330-7443  [[postdoctoral associate, yale university, new...   \n",
+       "0000-0001-9670-515X                                                NaN   \n",
+       "...                                                                ...   \n",
+       "0000-0003-1204-6009  [[, university of oxford, oxford, oxfordshire,...   \n",
+       "0000-0002-3472-7668  [[phd researcher, katholieke universiteit leuv...   \n",
+       "0000-0002-9602-0529                                                NaN   \n",
+       "0000-0003-4402-5982  [[co-owner, aeft acessory, manaus, amazonas, b...   \n",
+       "0000-0002-1734-7241  [[post-doctor, zhejiang university, hangzhou, ...   \n",
+       "\n",
+       "                     n_works                works_source  \\\n",
+       "0000-0001-9097-2281        1          [abhishek solanki]   \n",
+       "0000-0002-8614-3007        0                         NaN   \n",
+       "0000-0003-3728-6439        1                  [crossref]   \n",
+       "0000-0001-8330-7443        4          [andrea tesoniero]   \n",
+       "0000-0001-9670-515X        0                         NaN   \n",
+       "...                      ...                         ...   \n",
+       "0000-0003-1204-6009       10  [crossref metadata search]   \n",
+       "0000-0002-3472-7668        0                         NaN   \n",
+       "0000-0002-9602-0529        1                  [crossref]   \n",
+       "0000-0003-4402-5982        0                         NaN   \n",
+       "0000-0002-1734-7241        6         [manareldeen ahmed]   \n",
+       "\n",
+       "                              activation_date          last_update_date  \\\n",
+       "0000-0001-9097-2281  2019-04-22t04:43:06.232z  2020-07-02t14:18:28.305z   \n",
+       "0000-0002-8614-3007  2017-11-15t06:33:45.625z  2017-11-15t06:44:02.998z   \n",
+       "0000-0003-3728-6439  2019-03-31t00:00:42.929z  2020-09-06t02:18:54.290z   \n",
+       "0000-0001-8330-7443  2015-03-09t11:59:06.093z  2020-08-20t15:03:23.447z   \n",
+       "0000-0001-9670-515X  2020-07-26t10:38:03.721z  2020-07-26t10:52:26.539z   \n",
+       "...                                       ...                       ...   \n",
+       "0000-0003-1204-6009  2016-07-28t14:24:16.844z  2020-10-13t11:47:50.621z   \n",
+       "0000-0002-3472-7668  2020-10-14t13:56:44.779z  2020-10-16t14:21:40.673z   \n",
+       "0000-0002-9602-0529  2013-09-16t16:52:06.120z  2020-12-01t22:47:08.074z   \n",
+       "0000-0003-4402-5982  2020-03-02t20:11:01.699z  2020-12-04t13:53:39.404z   \n",
+       "0000-0002-1734-7241  2017-02-17t13:18:36.540z  2020-12-04t02:04:36.668z   \n",
+       "\n",
+       "                     n_doi  n_arxiv  n_pmc  n_other_pids  label  \\\n",
+       "0000-0001-9097-2281      0        0      0             0      0   \n",
+       "0000-0002-8614-3007      0        0      0             0      0   \n",
+       "0000-0003-3728-6439      1        0      0             0      0   \n",
+       "0000-0001-8330-7443      4        0      0             2      0   \n",
+       "0000-0001-9670-515X      0        0      0             0      0   \n",
+       "...                    ...      ...    ...           ...    ...   \n",
+       "0000-0003-1204-6009     10        0      0             0      0   \n",
+       "0000-0002-3472-7668      0        0      0             0      0   \n",
+       "0000-0002-9602-0529      1        0      0             0      0   \n",
+       "0000-0003-4402-5982      0        0      0             0      0   \n",
+       "0000-0002-1734-7241      6        0      0             3      0   \n",
+       "\n",
+       "                    primary_email_domain    other_email_domains  \\\n",
+       "0000-0001-9097-2281                  NaN         [in.bosch.com]   \n",
+       "0000-0002-8614-3007                  NaN            [hct.ac.ae]   \n",
+       "0000-0003-3728-6439                  NaN  [pascualbravo.edu.co]   \n",
+       "0000-0001-8330-7443                  NaN             [yale.edu]   \n",
+       "0000-0001-9670-515X                  NaN            [gmail.com]   \n",
+       "...                                  ...                    ...   \n",
+       "0000-0003-1204-6009                  NaN          [cs.ox.ac.uk]   \n",
+       "0000-0002-3472-7668                  NaN          [kuleuven.be]   \n",
+       "0000-0002-9602-0529                  NaN         [cecot.com.br]   \n",
+       "0000-0003-4402-5982                  NaN            [ime.eb.br]   \n",
+       "0000-0002-1734-7241                  NaN          [hotmail.com]   \n",
+       "\n",
+       "                                    url_domains  n_emails  n_urls  n_ids  \\\n",
+       "0000-0001-9097-2281  [github.com, linkedin.com]       1.0     2.0    NaN   \n",
+       "0000-0002-8614-3007                         NaN       1.0     NaN    NaN   \n",
+       "0000-0003-3728-6439                         NaN       1.0     NaN    NaN   \n",
+       "0000-0001-8330-7443                         NaN       1.0     NaN    1.0   \n",
+       "0000-0001-9670-515X                         NaN       1.0     NaN    NaN   \n",
+       "...                                         ...       ...     ...    ...   \n",
+       "0000-0003-1204-6009              [fu-berlin.de]       1.0     1.0    NaN   \n",
+       "0000-0002-3472-7668              [linkedin.com]       1.0     1.0    NaN   \n",
+       "0000-0002-9602-0529                         NaN       1.0     NaN    NaN   \n",
+       "0000-0003-4402-5982                         NaN       1.0     NaN    NaN   \n",
+       "0000-0002-1734-7241                         NaN       1.0     NaN    NaN   \n",
+       "\n",
+       "                     n_keywords  n_education  n_employment  \n",
+       "0000-0001-9097-2281         NaN          NaN           2.0  \n",
+       "0000-0002-8614-3007         NaN          NaN           NaN  \n",
+       "0000-0003-3728-6439         7.0          1.0           1.0  \n",
+       "0000-0001-8330-7443         NaN          4.0           2.0  \n",
+       "0000-0001-9670-515X         3.0          3.0           NaN  \n",
+       "...                         ...          ...           ...  \n",
+       "0000-0003-1204-6009         NaN          3.0           2.0  \n",
+       "0000-0002-3472-7668         NaN          2.0           1.0  \n",
+       "0000-0002-9602-0529         NaN          NaN           NaN  \n",
+       "0000-0003-4402-5982         NaN          2.0           1.0  \n",
+       "0000-0002-1734-7241         5.0          NaN           1.0  \n",
+       "\n",
+       "[19692 rows x 30 columns]"
+      ]
+     },
+     "execution_count": 25,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "df[df['primary_email'].isna() & df['other_emails'].notna()]"
+    "df[df.primary_email.isna() & df.other_email_domains.notna()]"
    ]
   },
   {
@@ -894,52 +5326,447 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 26,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
+       "      <th>given_names</th>\n",
+       "      <th>family_name</th>\n",
+       "      <th>biography</th>\n",
+       "      <th>other_names</th>\n",
+       "      <th>primary_email</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
+       "      <th>employment</th>\n",
+       "      <th>n_works</th>\n",
+       "      <th>works_source</th>\n",
+       "      <th>activation_date</th>\n",
+       "      <th>last_update_date</th>\n",
+       "      <th>n_doi</th>\n",
+       "      <th>n_arxiv</th>\n",
+       "      <th>n_pmc</th>\n",
+       "      <th>n_other_pids</th>\n",
+       "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-7402-0096</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, kth royal institute of technology, stockho...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2015-01-11t15:13:06.467z</td>\n",
+       "      <td>2016-06-14t23:55:59.896z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[kth.se]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-8377-3508</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[fontana, milena da silva]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[educação; informática; matemática.]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, instituto federal de educação, ciência e t...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2018-05-23t23:39:04.534z</td>\n",
+       "      <td>2019-10-16t02:50:11.007z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[cnpq.br]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>3.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-2638-4108</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>investigador de la universidad de oviedo. depa...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[constitutional law, history of political thou...</td>\n",
+       "      <td>[[scopus author id, 54394231000]]</td>\n",
+       "      <td>[[public law, ph doctor, university of oviedo,...</td>\n",
+       "      <td>[[professor of constitutional law, university ...</td>\n",
+       "      <td>1</td>\n",
+       "      <td>[crossref]</td>\n",
+       "      <td>2013-03-25t14:38:06.016z</td>\n",
+       "      <td>2020-07-01t13:10:37.025z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[unioviedo.es]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-1435-6545</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[migration, culture cell, prostate cancer]</td>\n",
+       "      <td>[[researcherid, p-2223-2018]]</td>\n",
+       "      <td>[[morfologia, , universidade estadual paulista...</td>\n",
+       "      <td>[[, universidade estadual paulista (unesp), in...</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2018-08-09t12:12:24.405z</td>\n",
+       "      <td>2020-04-22t01:38:03.184z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[cnpq.br, linkedin.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-1284-9741</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>alex percy antonio</td>\n",
+       "      <td>manriquez paisig</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-09-08t20:04:33.906z</td>\n",
+       "      <td>2020-09-08t20:25:55.432z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[youtube.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0001-7402-0096      1               1                       1   \n",
+       "0000-0001-8377-3508      1               1                       1   \n",
+       "0000-0002-2638-4108      1               1                       1   \n",
+       "0000-0003-1435-6545      1               1                       1   \n",
+       "0000-0003-1284-9741      1               1                       1   \n",
+       "\n",
+       "                            given_names       family_name  \\\n",
+       "0000-0001-7402-0096                 NaN               NaN   \n",
+       "0000-0001-8377-3508                 NaN               NaN   \n",
+       "0000-0002-2638-4108                 NaN               NaN   \n",
+       "0000-0003-1435-6545                 NaN               NaN   \n",
+       "0000-0003-1284-9741  alex percy antonio  manriquez paisig   \n",
+       "\n",
+       "                                                             biography  \\\n",
+       "0000-0001-7402-0096                                                NaN   \n",
+       "0000-0001-8377-3508                                                NaN   \n",
+       "0000-0002-2638-4108  investigador de la universidad de oviedo. depa...   \n",
+       "0000-0003-1435-6545                                                NaN   \n",
+       "0000-0003-1284-9741                                                NaN   \n",
+       "\n",
+       "                                    other_names primary_email  \\\n",
+       "0000-0001-7402-0096                         NaN           NaN   \n",
+       "0000-0001-8377-3508  [fontana, milena da silva]           NaN   \n",
+       "0000-0002-2638-4108                         NaN           NaN   \n",
+       "0000-0003-1435-6545                         NaN           NaN   \n",
+       "0000-0003-1284-9741                         NaN           NaN   \n",
+       "\n",
+       "                                                              keywords  \\\n",
+       "0000-0001-7402-0096                                                NaN   \n",
+       "0000-0001-8377-3508               [educação; informática; matemática.]   \n",
+       "0000-0002-2638-4108  [constitutional law, history of political thou...   \n",
+       "0000-0003-1435-6545         [migration, culture cell, prostate cancer]   \n",
+       "0000-0003-1284-9741                                                NaN   \n",
+       "\n",
+       "                                          external_ids  \\\n",
+       "0000-0001-7402-0096                                NaN   \n",
+       "0000-0001-8377-3508                                NaN   \n",
+       "0000-0002-2638-4108  [[scopus author id, 54394231000]]   \n",
+       "0000-0003-1435-6545      [[researcherid, p-2223-2018]]   \n",
+       "0000-0003-1284-9741                                NaN   \n",
+       "\n",
+       "                                                             education  \\\n",
+       "0000-0001-7402-0096                                                NaN   \n",
+       "0000-0001-8377-3508                                                NaN   \n",
+       "0000-0002-2638-4108  [[public law, ph doctor, university of oviedo,...   \n",
+       "0000-0003-1435-6545  [[morfologia, , universidade estadual paulista...   \n",
+       "0000-0003-1284-9741                                                NaN   \n",
+       "\n",
+       "                                                            employment  \\\n",
+       "0000-0001-7402-0096  [[, kth royal institute of technology, stockho...   \n",
+       "0000-0001-8377-3508  [[, instituto federal de educação, ciência e t...   \n",
+       "0000-0002-2638-4108  [[professor of constitutional law, university ...   \n",
+       "0000-0003-1435-6545  [[, universidade estadual paulista (unesp), in...   \n",
+       "0000-0003-1284-9741                                                NaN   \n",
+       "\n",
+       "                     n_works works_source           activation_date  \\\n",
+       "0000-0001-7402-0096        0          NaN  2015-01-11t15:13:06.467z   \n",
+       "0000-0001-8377-3508        0          NaN  2018-05-23t23:39:04.534z   \n",
+       "0000-0002-2638-4108        1   [crossref]  2013-03-25t14:38:06.016z   \n",
+       "0000-0003-1435-6545        0          NaN  2018-08-09t12:12:24.405z   \n",
+       "0000-0003-1284-9741        0          NaN  2020-09-08t20:04:33.906z   \n",
+       "\n",
+       "                             last_update_date  n_doi  n_arxiv  n_pmc  \\\n",
+       "0000-0001-7402-0096  2016-06-14t23:55:59.896z      0        0      0   \n",
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+       "0000-0003-1284-9741  2020-09-08t20:25:55.432z      0        0      0   \n",
+       "\n",
+       "                     n_other_pids  label primary_email_domain  \\\n",
+       "0000-0001-7402-0096             0      0                  NaN   \n",
+       "0000-0001-8377-3508             0      0                  NaN   \n",
+       "0000-0002-2638-4108             0      0                  NaN   \n",
+       "0000-0003-1435-6545             0      0                  NaN   \n",
+       "0000-0003-1284-9741             0      0                  NaN   \n",
+       "\n",
+       "                    other_email_domains              url_domains  n_emails  \\\n",
+       "0000-0001-7402-0096                 NaN                 [kth.se]       NaN   \n",
+       "0000-0001-8377-3508                 NaN                [cnpq.br]       NaN   \n",
+       "0000-0002-2638-4108                 NaN           [unioviedo.es]       NaN   \n",
+       "0000-0003-1435-6545                 NaN  [cnpq.br, linkedin.com]       NaN   \n",
+       "0000-0003-1284-9741                 NaN            [youtube.com]       NaN   \n",
+       "\n",
+       "                     n_urls  n_ids  n_keywords  n_education  n_employment  \n",
+       "0000-0001-7402-0096     1.0    NaN         NaN          NaN           1.0  \n",
+       "0000-0001-8377-3508     1.0    NaN         1.0          NaN           3.0  \n",
+       "0000-0002-2638-4108     1.0    1.0         3.0          1.0           1.0  \n",
+       "0000-0003-1435-6545     2.0    1.0         3.0          1.0           1.0  \n",
+       "0000-0003-1284-9741     1.0    NaN         NaN          NaN           NaN  "
+      ]
+     },
+     "execution_count": 26,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "def extract_url_domains(lst):\n",
-    "    domains = []\n",
-    "    for e in lst:\n",
-    "        # e[0] is a string describing the url\n",
-    "        # e[1] is the url\n",
-    "        domain = tldextract.extract(e[1])\n",
-    "        domains.append(domain.registered_domain)\n",
-    "    return domains"
+    "df[df.url_domains.notna()].head()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 27,
    "metadata": {},
-   "outputs": [],
-   "source": [
-    "df['url_domains'] = df[df.urls.notna()]['urls'].apply(lambda x: extract_url_domains(x))"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df[df['url_domains'].notna()].head()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df['n_urls'] = df['url_domains'].str.len()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "outputs": [
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+       "      <th>orcid</th>\n",
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+       "<p>10916574 rows × 2 columns</p>\n",
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+      "text/plain": [
+       "                     orcid  n_urls\n",
+       "0000-0002-1234-835X      1   219.0\n",
+       "0000-0001-7478-4539      1   174.0\n",
+       "0000-0002-7392-3792      1   169.0\n",
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+       "0000-0002-5710-4041      1   114.0\n",
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+       "\n",
+       "[10916574 rows x 2 columns]"
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+     },
+     "execution_count": 27,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "urls_by_orcid = df.sort_values('n_urls', ascending=False)[['orcid', 'n_urls']]\n",
     "urls_by_orcid"
@@ -947,14 +5774,1085 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 65,
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true, \"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\", \"title\": {\"standoff\": 15}, \"zerolinecolor\": \"white\", \"zerolinewidth\": 2}}}, \"title\": {\"text\": \"Top 100 ORCID iDs with URLs\"}, \"xaxis\": {\"range\": [-0.5, 99.5], \"tickangle\": 45, \"tickfont\": {\"size\": 12}}},                        {\"responsive\": true}                    ).then(function(){\n",
+       "                            \n",
+       "var gd = document.getElementById('0e607391-8ec7-4259-853c-155913efe159');\n",
+       "var x = new MutationObserver(function (mutations, observer) {{\n",
+       "        var display = window.getComputedStyle(gd).display;\n",
+       "        if (!display || display === 'none') {{\n",
+       "            console.log([gd, 'removed!']);\n",
+       "            Plotly.purge(gd);\n",
+       "            observer.disconnect();\n",
+       "        }}\n",
+       "}});\n",
+       "\n",
+       "// Listen for the removal of the full notebook cells\n",
+       "var notebookContainer = gd.closest('#notebook-container');\n",
+       "if (notebookContainer) {{\n",
+       "    x.observe(notebookContainer, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "// Listen for the clearing of the current output cell\n",
+       "var outputEl = gd.closest('.output');\n",
+       "if (outputEl) {{\n",
+       "    x.observe(outputEl, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "                        })                };                });            </script>        </div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "set_top_n(100)\n",
     "data = [\n",
     "    go.Bar(\n",
-    "        x=urls_by_orcid[:TOP_N]['orcid'],\n",
+    "        x=urls_by_orcid[:TOP_N].index,\n",
     "        y=urls_by_orcid[:TOP_N]['n_urls']\n",
     "    )\n",
     "]\n",
@@ -969,7 +6867,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 29,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -983,9 +6881,980 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 30,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.plotly.v1+json": {
+       "config": {
+        "linkText": "Export to plot.ly",
+        "plotlyServerURL": "https://plot.ly",
+        "showLink": false
+       },
+       "data": [
+        {
+         "type": "bar",
+         "x": [
+          "linkedin.com",
+          "researchgate.net",
+          "google.com",
+          "cnpq.br",
+          "academia.edu",
+          "twitter.com",
+          "facebook.com",
+          "publons.com",
+          "wordpress.com",
+          "mendeley.com",
+          "instagram.com",
+          "github.io",
+          "google.com.ua",
+          "blogspot.com",
+          "github.com",
+          "google.es",
+          "helsinki.fi",
+          "unirioja.es",
+          "youtube.com",
+          "wixsite.com",
+          "ku.dk",
+          "scopus.com",
+          "",
+          "weebly.com",
+          "us.es",
+          "kth.se",
+          "cityu.edu.hk",
+          "kcl.ac.uk",
+          "au.dk",
+          "man.ac.uk",
+          "google.com.au",
+          "ucl.ac.uk",
+          "sdu.dk",
+          "ugr.es",
+          "researcherid.com",
+          "mq.edu.au",
+          "ntu.edu.tw",
+          "rug.nl",
+          "colciencias.gov.co",
+          "google.co.in",
+          "dtu.dk",
+          "bris.ac.uk",
+          "uwa.edu.au",
+          "bu.edu",
+          "uc3m.es",
+          "vub.be",
+          "monash.edu",
+          "google.co.uk",
+          "aau.dk",
+          "lancs.ac.uk"
+         ],
+         "y": [
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+          44397,
+          24439,
+          21054,
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+          1880,
+          1838,
+          1808,
+          1805,
+          1803,
+          1788,
+          1772,
+          1652,
+          1652,
+          1648
+         ]
+        }
+       ],
+       "layout": {
+        "template": {
+         "data": {
+          "bar": [
+           {
+            "error_x": {
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+            },
+            "error_y": {
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+             "linecolor": "white",
+             "minorgridcolor": "white",
+             "startlinecolor": "#2a3f5f"
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+            "type": "carpet"
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+          ],
+          "choropleth": [
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+             "ticks": ""
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@@ -1012,33 +7881,2036 @@
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-   "execution_count": null,
+   "execution_count": 31,
    "metadata": {
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    },
-   "outputs": [],
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+       "      <td>franklin américo</td>\n",
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+       "      <td>docente-investigador social. maestrando en der...</td>\n",
+       "      <td>[franklin américo canaza-choque , franklin a. ...</td>\n",
+       "      <td>leo_123fa@hotmail.com</td>\n",
+       "      <td>[justicia global; democracia; derechos humanos...</td>\n",
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+       "      <td>hotmail.com</td>\n",
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+       "      <td>[jaroslaw jozef spychala]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[photochemistry, organic chemistry, biochemist...</td>\n",
+       "      <td>[[scopus author id, 7006745874]]</td>\n",
+       "      <td>[[department of chemistry, postdoctoral associ...</td>\n",
+       "      <td>[[assistant professor, adam mickiewicz univers...</td>\n",
+       "      <td>29</td>\n",
+       "      <td>[scopus - elsevier]</td>\n",
+       "      <td>2014-09-18t12:34:14.242z</td>\n",
+       "      <td>2020-02-11t14:31:25.544z</td>\n",
+       "      <td>15</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>29</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[biowebspin.com, biowebspin.com, google.com, l...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>73.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>2.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-4062-3603</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>juan de dios</td>\n",
+       "      <td>beltrán mancilla</td>\n",
+       "      <td>juan de dios beltrán mancilla (*) filósofo aut...</td>\n",
+       "      <td>[juan de dios beltrán mancilla, filósofo autod...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[filosofia medicina arquitectura economía dere...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, diplomado en practicas directivas  para or...</td>\n",
+       "      <td>[[inspector general jornada vespertina // de 2...</td>\n",
+       "      <td>11</td>\n",
+       "      <td>[juan de dios beltr´´án mancilla]</td>\n",
+       "      <td>2020-04-19t21:06:33.495z</td>\n",
+       "      <td>2021-02-10t20:13:07.698z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>7</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[yumpu.com, ijopm.org, google.com, blogspot.co...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>69.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>8.0</td>\n",
+       "      <td>6.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0002-5710-4041      1               1                       1   \n",
+       "0000-0002-1929-6054      1               1                       1   \n",
+       "0000-0003-2407-3557      1               1                       1   \n",
+       "0000-0002-3997-5070      1               1                       1   \n",
+       "0000-0003-2450-090X      1               1                       1   \n",
+       "0000-0003-2593-7134      1               1                       1   \n",
+       "0000-0002-3920-7389      1               1                       1   \n",
+       "0000-0003-4948-9268      1               1                       1   \n",
+       "0000-0003-2183-8112      1               1                       1   \n",
+       "0000-0002-6938-9638      1               1                       1   \n",
+       "0000-0002-9025-8632      1               1                       1   \n",
+       "0000-0002-9965-2425      1               1                       1   \n",
+       "0000-0002-4062-3603      1               1                       1   \n",
+       "\n",
+       "                            given_names        family_name  \\\n",
+       "0000-0002-5710-4041             ryszard           romaniuk   \n",
+       "0000-0002-1929-6054    franklin américo      canaza choque   \n",
+       "0000-0003-2407-3557               abdul               aziz   \n",
+       "0000-0002-3997-5070  dr. parameshachari                b d   \n",
+       "0000-0003-2450-090X              eduard            babulak   \n",
+       "0000-0003-2593-7134                 aan            jaelani   \n",
+       "0000-0002-3920-7389                  а.              гусев   \n",
+       "0000-0003-4948-9268            gustavo             duperré   \n",
+       "0000-0003-2183-8112       pelayo munhoz               olea   \n",
+       "0000-0002-6938-9638              adolfo    catral sanabria   \n",
+       "0000-0002-9025-8632         buycannabis         dispensary   \n",
+       "0000-0002-9965-2425            jaroslaw           spychala   \n",
+       "0000-0002-4062-3603       juan de dios   beltrán mancilla    \n",
+       "\n",
+       "                                                             biography  \\\n",
+       "0000-0002-5710-4041  professor of electronics and communications en...   \n",
+       "0000-0002-1929-6054  docente-investigador social. maestrando en der...   \n",
+       "0000-0003-2407-3557  abdul aziz was born on may 25, 1973, in brebes...   \n",
+       "0000-0002-3997-5070  dr. parameshachari b dacm distinguished speake...   \n",
+       "0000-0003-2450-090X  professor eduard babulak is accomplished inter...   \n",
+       "0000-0003-2593-7134  all my papers can be downloaded from portal:re...   \n",
+       "0000-0002-3920-7389  surname, name gusev  alexander leonidovichdate...   \n",
+       "0000-0003-4948-9268  gustavo norberto duperré graduated in arts and...   \n",
+       "0000-0003-2183-8112  pós-doutorado em gestão ambiental pela univers...   \n",
+       "0000-0002-6938-9638  my education is in computer science, mathemati...   \n",
+       "0000-0002-9025-8632  we procure and deliver premium cannabis strain...   \n",
+       "0000-0002-9965-2425  jaroslaw spychala has received a doctoral degr...   \n",
+       "0000-0002-4062-3603  juan de dios beltrán mancilla (*) filósofo aut...   \n",
+       "\n",
+       "                                                           other_names  \\\n",
+       "0000-0002-5710-4041  [r.romaniuk, r.s.romaniuk, ryszard romaniuk, r...   \n",
+       "0000-0002-1929-6054  [franklin américo canaza-choque , franklin a. ...   \n",
+       "0000-0003-2407-3557  [abdul aziz, aziz, abdul, aziz, a., aziz, abd,...   \n",
+       "0000-0002-3997-5070                           [dr. parameshachari b d]   \n",
+       "0000-0003-2450-090X                         [professor eduard babulak]   \n",
+       "0000-0003-2593-7134                        [jaelani, a., jaelani, aan]   \n",
+       "0000-0002-3920-7389  [alexander l. gusev , alexander leonidovich gu...   \n",
+       "0000-0003-4948-9268  [gustavo norberto duperré, duperré, g. n., gus...   \n",
+       "0000-0003-2183-8112  [ munhoz, pelayo olea,  olea, pelayo,  olea, p...   \n",
+       "0000-0002-6938-9638                                                NaN   \n",
+       "0000-0002-9025-8632  [we procure and deliver premium cannabis strai...   \n",
+       "0000-0002-9965-2425                          [jaroslaw jozef spychala]   \n",
+       "0000-0002-4062-3603  [juan de dios beltrán mancilla, filósofo autod...   \n",
+       "\n",
+       "                                      primary_email  \\\n",
+       "0000-0002-5710-4041              rrom@ise.pw.edu.pl   \n",
+       "0000-0002-1929-6054           leo_123fa@hotmail.com   \n",
+       "0000-0003-2407-3557                             NaN   \n",
+       "0000-0002-3997-5070                             NaN   \n",
+       "0000-0003-2450-090X                             NaN   \n",
+       "0000-0003-2593-7134  aan_jaelani@syekhnurjati.ac.id   \n",
+       "0000-0002-3920-7389                             NaN   \n",
+       "0000-0003-4948-9268     gustavo.duperre@usal.edu.ar   \n",
+       "0000-0003-2183-8112                             NaN   \n",
+       "0000-0002-6938-9638                             NaN   \n",
+       "0000-0002-9025-8632                             NaN   \n",
+       "0000-0002-9965-2425                             NaN   \n",
+       "0000-0002-4062-3603                             NaN   \n",
+       "\n",
+       "                                                              keywords  \\\n",
+       "0000-0002-5710-4041  [measurement systems, telecommunications, rese...   \n",
+       "0000-0002-1929-6054  [justicia global; democracia; derechos humanos...   \n",
+       "0000-0003-2407-3557  [etika bisnis islam, ekonomi islam, ilmu ekono...   \n",
+       "0000-0002-3997-5070  [honorary secretary| iete mysuru centre, profe...   \n",
+       "0000-0003-2450-090X  [internet of things, computer networking, inte...   \n",
+       "0000-0003-2593-7134  [islamic economics, history of islamic economi...   \n",
+       "0000-0002-3920-7389  [technologies of isotope separation, 3d - prin...   \n",
+       "0000-0003-4948-9268  [computer science, medieval and modern history...   \n",
+       "0000-0003-2183-8112     [inovação, empreendedorismo, sustentabilidade]   \n",
+       "0000-0002-6938-9638                                                NaN   \n",
+       "0000-0002-9025-8632  [cannabis community, cannabis culture, marijua...   \n",
+       "0000-0002-9965-2425  [photochemistry, organic chemistry, biochemist...   \n",
+       "0000-0002-4062-3603  [filosofia medicina arquitectura economía dere...   \n",
+       "\n",
+       "                                                          external_ids  \\\n",
+       "0000-0002-5710-4041  [[isni, 0000000071432485], [researcherid, b-91...   \n",
+       "0000-0002-1929-6054  [[researcherid, p-8613-2018], [loop profile, 8...   \n",
+       "0000-0003-2407-3557                                                NaN   \n",
+       "0000-0002-3997-5070  [[researcherid, f-7045-2018], [scopus author i...   \n",
+       "0000-0003-2450-090X  [[scopus author id, 6506867432], [researcherid...   \n",
+       "0000-0003-2593-7134  [[scopus author id, 57195963463], [loop profil...   \n",
+       "0000-0002-3920-7389  [[researcherid, f-8048-2014], [scopus author i...   \n",
+       "0000-0003-4948-9268  [[scopus author id, 57195936346], [researcheri...   \n",
+       "0000-0003-2183-8112  [[scopus author id, 55175503300], [researcheri...   \n",
+       "0000-0002-6938-9638                           [[loop profile, 747193]]   \n",
+       "0000-0002-9025-8632                                                NaN   \n",
+       "0000-0002-9965-2425                   [[scopus author id, 7006745874]]   \n",
+       "0000-0002-4062-3603                                                NaN   \n",
+       "\n",
+       "                                                             education  \\\n",
+       "0000-0002-5710-4041  [[faculty of electronics and information techn...   \n",
+       "0000-0002-1929-6054  [[facultad de ciencias de la educación , maest...   \n",
+       "0000-0003-2407-3557  [[ilmu ekonomi, dr, universitas borobudur, jak...   \n",
+       "0000-0002-3997-5070  [[electronics and communication engineering, p...   \n",
+       "0000-0003-2450-090X  [[information technology, doctor habilitated (...   \n",
+       "0000-0003-2593-7134  [[post graduate, s3/dr, universitas islam nege...   \n",
+       "0000-0002-3920-7389  [[chemical technology and cryogenic-vacuum tec...   \n",
+       "0000-0003-4948-9268  [[programme in history, history of art and ter...   \n",
+       "0000-0003-2183-8112  [[, postdoctoral in environmental sustainabili...   \n",
+       "0000-0002-6938-9638  [[education, capacitación para la enseñanza en...   \n",
+       "0000-0002-9025-8632                                                NaN   \n",
+       "0000-0002-9965-2425  [[department of chemistry, postdoctoral associ...   \n",
+       "0000-0002-4062-3603  [[, diplomado en practicas directivas  para or...   \n",
+       "\n",
+       "                                                            employment  \\\n",
+       "0000-0002-5710-4041  [[professor, institute director, politechnika ...   \n",
+       "0000-0002-1929-6054  [[investigador social, universidad católica de...   \n",
+       "0000-0003-2407-3557  [[assisten professor/dr, institut agama islam ...   \n",
+       "0000-0002-3997-5070  [[acm distinguished speaker (volunteer), assoc...   \n",
+       "0000-0003-2450-090X  [[consultant, horizon 2020 framework programme...   \n",
+       "0000-0003-2593-7134  [[dr, institut agama islam negeri syekh nurjat...   \n",
+       "0000-0002-3920-7389  [[general director, scientific technical centr...   \n",
+       "0000-0003-4948-9268  [[titular professor, dirección general de cult...   \n",
+       "0000-0003-2183-8112  [[professor, universidade federal do rio grand...   \n",
+       "0000-0002-6938-9638                                                NaN   \n",
+       "0000-0002-9025-8632                                                NaN   \n",
+       "0000-0002-9965-2425  [[assistant professor, adam mickiewicz univers...   \n",
+       "0000-0002-4062-3603  [[inspector general jornada vespertina // de 2...   \n",
+       "\n",
+       "                     n_works  \\\n",
+       "0000-0002-5710-4041     5008   \n",
+       "0000-0002-1929-6054       38   \n",
+       "0000-0003-2407-3557       72   \n",
+       "0000-0002-3997-5070       93   \n",
+       "0000-0003-2450-090X      274   \n",
+       "0000-0003-2593-7134       79   \n",
+       "0000-0002-3920-7389      472   \n",
+       "0000-0003-4948-9268       41   \n",
+       "0000-0003-2183-8112     1108   \n",
+       "0000-0002-6938-9638     2023   \n",
+       "0000-0002-9025-8632       10   \n",
+       "0000-0002-9965-2425       29   \n",
+       "0000-0002-4062-3603       11   \n",
+       "\n",
+       "                                                          works_source  \\\n",
+       "0000-0002-5710-4041  [inspire-hep, researcherid, isni2orcid search ...   \n",
+       "0000-0002-1929-6054  [researcherid, base - bielefeld academic searc...   \n",
+       "0000-0003-2407-3557  [base - bielefeld academic search engine, abdu...   \n",
+       "0000-0002-3997-5070  [publons, multidisciplinary digital publishing...   \n",
+       "0000-0003-2450-090X  [the lens, base - bielefeld academic search en...   \n",
+       "0000-0003-2593-7134  [publons, aan jaelani, scopus - elsevier, dime...   \n",
+       "0000-0002-3920-7389  [publons, datacite, scopus - elsevier, a.l. gu...   \n",
+       "0000-0003-4948-9268  [gustavo duperré, scopus - elsevier, publons, ...   \n",
+       "0000-0003-2183-8112  [the lens, pelayo munhoz olea, dimensions, bas...   \n",
+       "0000-0002-6938-9638  [base - bielefeld academic search engine, data...   \n",
+       "0000-0002-9025-8632                         [goowonderland dispensary]   \n",
+       "0000-0002-9965-2425                                [scopus - elsevier]   \n",
+       "0000-0002-4062-3603                  [juan de dios beltr´´án mancilla]   \n",
+       "\n",
+       "                              activation_date          last_update_date  \\\n",
+       "0000-0002-5710-4041  2013-01-20t12:09:21.600z  2021-03-11t20:57:13.284z   \n",
+       "0000-0002-1929-6054  2017-09-15t19:45:43.483z  2021-03-14t20:20:21.282z   \n",
+       "0000-0003-2407-3557  2016-09-12t04:41:24.842z  2021-01-26t11:58:33.039z   \n",
+       "0000-0002-3997-5070  2016-08-24t11:00:30.403z  2021-03-14t07:11:09.817z   \n",
+       "0000-0003-2450-090X  2013-04-03t08:02:30.013z  2021-02-28t10:07:13.231z   \n",
+       "0000-0003-2593-7134  2016-03-02t18:37:44.989z  2021-03-08t03:42:22.593z   \n",
+       "0000-0002-3920-7389  2014-05-14t00:01:28.030z  2021-01-16t13:44:14.134z   \n",
+       "0000-0003-4948-9268  2020-02-22t15:49:52.386z  2021-03-12t15:13:44.065z   \n",
+       "0000-0003-2183-8112  2013-02-04t17:25:34.723z  2021-03-10t14:05:17.770z   \n",
+       "0000-0002-6938-9638  2019-05-07t19:27:02.210z  2020-12-10t23:39:15.236z   \n",
+       "0000-0002-9025-8632  2020-12-09t21:19:46.004z  2020-12-10t01:17:28.772z   \n",
+       "0000-0002-9965-2425  2014-09-18t12:34:14.242z  2020-02-11t14:31:25.544z   \n",
+       "0000-0002-4062-3603  2020-04-19t21:06:33.495z  2021-02-10t20:13:07.698z   \n",
+       "\n",
+       "                     n_doi  n_arxiv  n_pmc  n_other_pids  label  \\\n",
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+       "0000-0002-4062-3603      0        0      0             7      0   \n",
+       "\n",
+       "                    primary_email_domain  \\\n",
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+       "0000-0002-4062-3603                  NaN   \n",
+       "\n",
+       "                                                   other_email_domains  \\\n",
+       "0000-0002-5710-4041           [ise.pw.edu.pl, elka.pw.edu.pl, cern.ch]   \n",
+       "0000-0002-1929-6054  [gmail.com, gmail.com, hotmail.com, baldwin.ed...   \n",
+       "0000-0003-2407-3557                                                NaN   \n",
+       "0000-0002-3997-5070                                                NaN   \n",
+       "0000-0003-2450-090X                                                NaN   \n",
+       "0000-0003-2593-7134                                        [gmail.com]   \n",
+       "0000-0002-3920-7389                                                NaN   \n",
+       "0000-0003-4948-9268                                                NaN   \n",
+       "0000-0003-2183-8112                                                NaN   \n",
+       "0000-0002-6938-9638                                                NaN   \n",
+       "0000-0002-9025-8632                                                NaN   \n",
+       "0000-0002-9965-2425                                                NaN   \n",
+       "0000-0002-4062-3603                                                NaN   \n",
+       "\n",
+       "                                                           url_domains  \\\n",
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+       "0000-0002-3997-5070  [geethashishu.in, geethashishu.in, acm.org, go...   \n",
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+       "0000-0003-2593-7134  [microsoft.com, twitter.com, academia.edu, aca...   \n",
+       "0000-0002-3920-7389  [youtube.com, isjaee.com, researchgate.net, re...   \n",
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+       "0000-0002-6938-9638  [researchgate.net, youtube.com, linkedin.com, ...   \n",
+       "0000-0002-9025-8632  [goowonderland.com, goowonderland.com, goowond...   \n",
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+       "0000-0002-4062-3603  [yumpu.com, ijopm.org, google.com, blogspot.co...   \n",
+       "\n",
+       "                     n_emails  n_urls  n_ids  n_keywords  n_education  \\\n",
+       "0000-0002-5710-4041       3.0   114.0    3.0         5.0          1.0   \n",
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+       "0000-0003-4948-9268       NaN    61.0    2.0        11.0          6.0   \n",
+       "0000-0003-2183-8112       NaN    61.0    2.0         3.0          7.0   \n",
+       "0000-0002-6938-9638       NaN   152.0    1.0         NaN          6.0   \n",
+       "0000-0002-9025-8632       NaN    81.0    NaN         7.0          NaN   \n",
+       "0000-0002-9965-2425       NaN    73.0    1.0         4.0          4.0   \n",
+       "0000-0002-4062-3603       NaN    69.0    NaN         1.0          8.0   \n",
+       "\n",
+       "                     n_employment  \n",
+       "0000-0002-5710-4041           1.0  \n",
+       "0000-0002-1929-6054           1.0  \n",
+       "0000-0003-2407-3557           1.0  \n",
+       "0000-0002-3997-5070          10.0  \n",
+       "0000-0003-2450-090X          22.0  \n",
+       "0000-0003-2593-7134           1.0  \n",
+       "0000-0002-3920-7389           7.0  \n",
+       "0000-0003-4948-9268           5.0  \n",
+       "0000-0003-2183-8112           9.0  \n",
+       "0000-0002-6938-9638           NaN  \n",
+       "0000-0002-9025-8632           NaN  \n",
+       "0000-0002-9965-2425           2.0  \n",
+       "0000-0002-4062-3603           6.0  "
+      ]
+     },
+     "execution_count": 31,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df[(df['url_domains'].str.len() > 50) & (df['n_works'] > 0)]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 32,
    "metadata": {
     "scrolled": true
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
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+       "  <thead>\n",
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+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
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+       "      <th>n_employment</th>\n",
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+       "      <th>0000-0002-3505-2797</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>nurul</td>\n",
+       "      <td>malahayati</td>\n",
+       "      <td>google scholar</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[researcherid, q-3861-2017]]</td>\n",
+       "      <td>[[civil and transportation engineering , maste...</td>\n",
+       "      <td>[[senior lecturer, universitas syiah kuala, ba...</td>\n",
+       "      <td>6</td>\n",
+       "      <td>[nurul malahayati]</td>\n",
+       "      <td>2017-10-01t00:46:31.324z</td>\n",
+       "      <td>2019-08-19t15:52:47.253z</td>\n",
+       "      <td>3</td>\n",
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+       "      <td>[google.com, ristekdikti.go.id, unsyiah.ac.id,...</td>\n",
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+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>carlos</td>\n",
+       "      <td>barrera</td>\n",
+       "      <td>im individual inventor, and this is my work; s...</td>\n",
+       "      <td>[retrodynamic, novelinflow]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[gearturbine, mechanical, power, innovation, t...</td>\n",
+       "      <td>[[loop profile, 394457]]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1</td>\n",
+       "      <td>[carlos barrera]</td>\n",
+       "      <td>2016-08-29t20:32:10.362z</td>\n",
+       "      <td>2021-02-09t04:56:35.554z</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[blogspot.mx, behance.net, authorstream.com, d...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>24.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>8.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-5441-0465</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>nuria</td>\n",
+       "      <td>hernández-león</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[nuria h. león, nuria hernández león, hernánde...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[marketing, research, human resources, busines...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, course: social skills, university of salam...</td>\n",
+       "      <td>[[merchandise reception and expedition trainer...</td>\n",
+       "      <td>11</td>\n",
+       "      <td>[nuria hernández-león]</td>\n",
+       "      <td>2015-11-28t07:18:58.442z</td>\n",
+       "      <td>2021-03-05t16:37:47.403z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>4</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[feriaempresamujer.com, escueladenegociosydire...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>16.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>7.0</td>\n",
+       "      <td>19.0</td>\n",
+       "      <td>16.0</td>\n",
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+       "    <tr>\n",
+       "      <th>0000-0002-7781-6767</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>mohd nazri</td>\n",
+       "      <td>ismail</td>\n",
+       "      <td>born in penang, malaysia in 1971, dr. mohd had...</td>\n",
+       "      <td>[ndum (national defence university of malaysia)]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[network communication, manet, wsn, network se...</td>\n",
+       "      <td>[[scopus author id, 24372977800], [researcheri...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[lecturer, universiti pertahanan nasional mal...</td>\n",
+       "      <td>35</td>\n",
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+       "      <td>2016-09-06t02:25:52.974z</td>\n",
+       "      <td>2020-10-20t06:55:55.051z</td>\n",
+       "      <td>24</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>35</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[google.com.my, researchgate.net, academia.edu...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>16.0</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>10.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>4.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-7010-2908</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>clara</td>\n",
+       "      <td>sarmento</td>\n",
+       "      <td>clara sarmento holds an aggregation in cultura...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[ethnography, tourism and business, anglo-amer...</td>\n",
+       "      <td>[[ciência id, d418-d6f8-7d49]]</td>\n",
+       "      <td>[[ao abrigo da bolsa santander ie best practic...</td>\n",
+       "      <td>[[presidente da comissão de acreditação do nov...</td>\n",
+       "      <td>275</td>\n",
+       "      <td>[clara sarmento]</td>\n",
+       "      <td>2013-12-12t00:33:58.190z</td>\n",
+       "      <td>2020-10-12t14:43:00.749z</td>\n",
+       "      <td>17</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>[iscap.pt, google.pt, academia.edu, researchga...</td>\n",
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+       "      <td>6.0</td>\n",
+       "      <td>8.0</td>\n",
+       "      <td>37.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
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+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-9446-9496</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>jesús</td>\n",
+       "      <td>portillo-fernández</td>\n",
+       "      <td>ba in philosophy, ba in humanities, ph.d. in p...</td>\n",
+       "      <td>[jesús portillo fernández, portillo-fernández,...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[absurdo, lingüística, pragmática, filosofía d...</td>\n",
+       "      <td>[[scopus author id, 55229372800]]</td>\n",
+       "      <td>[[, doctor en filología, universidad de sevill...</td>\n",
+       "      <td>[[, grupo de investigación en lógica, lenguaje...</td>\n",
+       "      <td>35</td>\n",
+       "      <td>[jesús portillo-fernández]</td>\n",
+       "      <td>2015-03-08t20:37:16.590z</td>\n",
+       "      <td>2021-03-12t22:05:28.976z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[us.es, us.es, us.es, google.es, microsoft.com...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>12.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-0579-5829</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>ángel</td>\n",
+       "      <td>carrión-tavárez</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[ángel carrión tavárez, á carrión tavárez, ác ...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[editing and publishing, sociomusicology, geog...</td>\n",
+       "      <td>[[loop profile, 687295]]</td>\n",
+       "      <td>[[integration and economic and territorial dev...</td>\n",
+       "      <td>[[director, university of puerto rico at río p...</td>\n",
+       "      <td>132</td>\n",
+       "      <td>[ángel carrión-tavárez]</td>\n",
+       "      <td>2017-12-30t19:25:41.566z</td>\n",
+       "      <td>2021-03-13t23:21:59.069z</td>\n",
+       "      <td>13</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>28</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[academia.edu, redalyc.org, directorioexit.inf...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>6.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>3.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-8960-9004</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>susan</td>\n",
+       "      <td>bastani</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[s. bastani, سوسن باستانی]</td>\n",
+       "      <td>sbastani@alzahra.ac.ir</td>\n",
+       "      <td>[social networks, online and offline communiti...</td>\n",
+       "      <td>[[scopus author id, 16642098400]]</td>\n",
+       "      <td>[[sociology, ph.d., university of toronto, tor...</td>\n",
+       "      <td>[[professor, alzahra university, tehran, vanak...</td>\n",
+       "      <td>20</td>\n",
+       "      <td>[scopus - elsevier]</td>\n",
+       "      <td>2019-07-10t06:50:46.255z</td>\n",
+       "      <td>2020-10-07t04:08:01.961z</td>\n",
+       "      <td>19</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>33</td>\n",
+       "      <td>0</td>\n",
+       "      <td>alzahra.ac.ir</td>\n",
+       "      <td>[gmail.com, gmail.com]</td>\n",
+       "      <td>[scopus.com, google.com, publons.com, zenodo.o...</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>4.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-4379-6454</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>caroline wanjiru</td>\n",
+       "      <td>kariuki</td>\n",
+       "      <td>caroline holds a phd in economics from curtin ...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[applied economics, financial economics, appli...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[economics, doctor of philosophy , curtin uni...</td>\n",
+       "      <td>[[director, educational development, strathmor...</td>\n",
+       "      <td>4</td>\n",
+       "      <td>[caroline wanjiru kariuki]</td>\n",
+       "      <td>2020-03-18t10:18:04.007z</td>\n",
+       "      <td>2021-02-11t14:40:38.515z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[scopus.com, mendeley.com, publons.com, resear...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>13.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>6.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-2311-0600</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>myo</td>\n",
+       "      <td>kyaw hlaing</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[dr myo kyaw hlaing]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[economic geology]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[lecturer, union of myanmar ministry of educa...</td>\n",
+       "      <td>2</td>\n",
+       "      <td>[myo kyaw hlaing]</td>\n",
+       "      <td>2018-12-26t12:51:57.801z</td>\n",
+       "      <td>2021-01-26t14:36:47.421z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[facebook.com, linkedin.com, instagram.com, re...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>12.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>141 rows × 30 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0002-3505-2797      1               1                       1   \n",
+       "0000-0003-3670-9620      1               1                       1   \n",
+       "0000-0002-5441-0465      1               1                       1   \n",
+       "0000-0002-7781-6767      1               1                       1   \n",
+       "0000-0001-7010-2908      1               1                       1   \n",
+       "...                    ...             ...                     ...   \n",
+       "0000-0002-9446-9496      1               1                       1   \n",
+       "0000-0003-0579-5829      1               1                       1   \n",
+       "0000-0001-8960-9004      1               1                       1   \n",
+       "0000-0002-4379-6454      1               1                       1   \n",
+       "0000-0003-2311-0600      1               1                       1   \n",
+       "\n",
+       "                          given_names         family_name  \\\n",
+       "0000-0002-3505-2797             nurul          malahayati   \n",
+       "0000-0003-3670-9620            carlos             barrera   \n",
+       "0000-0002-5441-0465             nuria      hernández-león   \n",
+       "0000-0002-7781-6767        mohd nazri              ismail   \n",
+       "0000-0001-7010-2908             clara            sarmento   \n",
+       "...                               ...                 ...   \n",
+       "0000-0002-9446-9496             jesús  portillo-fernández   \n",
+       "0000-0003-0579-5829             ángel     carrión-tavárez   \n",
+       "0000-0001-8960-9004             susan             bastani   \n",
+       "0000-0002-4379-6454  caroline wanjiru             kariuki   \n",
+       "0000-0003-2311-0600               myo         kyaw hlaing   \n",
+       "\n",
+       "                                                             biography  \\\n",
+       "0000-0002-3505-2797                                     google scholar   \n",
+       "0000-0003-3670-9620  im individual inventor, and this is my work; s...   \n",
+       "0000-0002-5441-0465                                                NaN   \n",
+       "0000-0002-7781-6767  born in penang, malaysia in 1971, dr. mohd had...   \n",
+       "0000-0001-7010-2908  clara sarmento holds an aggregation in cultura...   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9446-9496  ba in philosophy, ba in humanities, ph.d. in p...   \n",
+       "0000-0003-0579-5829                                                NaN   \n",
+       "0000-0001-8960-9004                                                NaN   \n",
+       "0000-0002-4379-6454  caroline holds a phd in economics from curtin ...   \n",
+       "0000-0003-2311-0600                                                NaN   \n",
+       "\n",
+       "                                                           other_names  \\\n",
+       "0000-0002-3505-2797                                                NaN   \n",
+       "0000-0003-3670-9620                        [retrodynamic, novelinflow]   \n",
+       "0000-0002-5441-0465  [nuria h. león, nuria hernández león, hernánde...   \n",
+       "0000-0002-7781-6767   [ndum (national defence university of malaysia)]   \n",
+       "0000-0001-7010-2908                                                NaN   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9446-9496  [jesús portillo fernández, portillo-fernández,...   \n",
+       "0000-0003-0579-5829  [ángel carrión tavárez, á carrión tavárez, ác ...   \n",
+       "0000-0001-8960-9004                         [s. bastani, سوسن باستانی]   \n",
+       "0000-0002-4379-6454                                                NaN   \n",
+       "0000-0003-2311-0600                               [dr myo kyaw hlaing]   \n",
+       "\n",
+       "                              primary_email  \\\n",
+       "0000-0002-3505-2797                     NaN   \n",
+       "0000-0003-3670-9620                     NaN   \n",
+       "0000-0002-5441-0465                     NaN   \n",
+       "0000-0002-7781-6767                     NaN   \n",
+       "0000-0001-7010-2908                     NaN   \n",
+       "...                                     ...   \n",
+       "0000-0002-9446-9496                     NaN   \n",
+       "0000-0003-0579-5829                     NaN   \n",
+       "0000-0001-8960-9004  sbastani@alzahra.ac.ir   \n",
+       "0000-0002-4379-6454                     NaN   \n",
+       "0000-0003-2311-0600                     NaN   \n",
+       "\n",
+       "                                                              keywords  \\\n",
+       "0000-0002-3505-2797                                                NaN   \n",
+       "0000-0003-3670-9620  [gearturbine, mechanical, power, innovation, t...   \n",
+       "0000-0002-5441-0465  [marketing, research, human resources, busines...   \n",
+       "0000-0002-7781-6767  [network communication, manet, wsn, network se...   \n",
+       "0000-0001-7010-2908  [ethnography, tourism and business, anglo-amer...   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9446-9496  [absurdo, lingüística, pragmática, filosofía d...   \n",
+       "0000-0003-0579-5829  [editing and publishing, sociomusicology, geog...   \n",
+       "0000-0001-8960-9004  [social networks, online and offline communiti...   \n",
+       "0000-0002-4379-6454  [applied economics, financial economics, appli...   \n",
+       "0000-0003-2311-0600                                 [economic geology]   \n",
+       "\n",
+       "                                                          external_ids  \\\n",
+       "0000-0002-3505-2797                      [[researcherid, q-3861-2017]]   \n",
+       "0000-0003-3670-9620                           [[loop profile, 394457]]   \n",
+       "0000-0002-5441-0465                                                NaN   \n",
+       "0000-0002-7781-6767  [[scopus author id, 24372977800], [researcheri...   \n",
+       "0000-0001-7010-2908                     [[ciência id, d418-d6f8-7d49]]   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9446-9496                  [[scopus author id, 55229372800]]   \n",
+       "0000-0003-0579-5829                           [[loop profile, 687295]]   \n",
+       "0000-0001-8960-9004                  [[scopus author id, 16642098400]]   \n",
+       "0000-0002-4379-6454                                                NaN   \n",
+       "0000-0003-2311-0600                                                NaN   \n",
+       "\n",
+       "                                                             education  \\\n",
+       "0000-0002-3505-2797  [[civil and transportation engineering , maste...   \n",
+       "0000-0003-3670-9620                                                NaN   \n",
+       "0000-0002-5441-0465  [[, course: social skills, university of salam...   \n",
+       "0000-0002-7781-6767                                                NaN   \n",
+       "0000-0001-7010-2908  [[ao abrigo da bolsa santander ie best practic...   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9446-9496  [[, doctor en filología, universidad de sevill...   \n",
+       "0000-0003-0579-5829  [[integration and economic and territorial dev...   \n",
+       "0000-0001-8960-9004  [[sociology, ph.d., university of toronto, tor...   \n",
+       "0000-0002-4379-6454  [[economics, doctor of philosophy , curtin uni...   \n",
+       "0000-0003-2311-0600                                                NaN   \n",
+       "\n",
+       "                                                            employment  \\\n",
+       "0000-0002-3505-2797  [[senior lecturer, universitas syiah kuala, ba...   \n",
+       "0000-0003-3670-9620                                                NaN   \n",
+       "0000-0002-5441-0465  [[merchandise reception and expedition trainer...   \n",
+       "0000-0002-7781-6767  [[lecturer, universiti pertahanan nasional mal...   \n",
+       "0000-0001-7010-2908  [[presidente da comissão de acreditação do nov...   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9446-9496  [[, grupo de investigación en lógica, lenguaje...   \n",
+       "0000-0003-0579-5829  [[director, university of puerto rico at río p...   \n",
+       "0000-0001-8960-9004  [[professor, alzahra university, tehran, vanak...   \n",
+       "0000-0002-4379-6454  [[director, educational development, strathmor...   \n",
+       "0000-0003-2311-0600  [[lecturer, union of myanmar ministry of educa...   \n",
+       "\n",
+       "                     n_works                works_source  \\\n",
+       "0000-0002-3505-2797        6          [nurul malahayati]   \n",
+       "0000-0003-3670-9620        1            [carlos barrera]   \n",
+       "0000-0002-5441-0465       11      [nuria hernández-león]   \n",
+       "0000-0002-7781-6767       35         [scopus - elsevier]   \n",
+       "0000-0001-7010-2908      275            [clara sarmento]   \n",
+       "...                      ...                         ...   \n",
+       "0000-0002-9446-9496       35  [jesús portillo-fernández]   \n",
+       "0000-0003-0579-5829      132     [ángel carrión-tavárez]   \n",
+       "0000-0001-8960-9004       20         [scopus - elsevier]   \n",
+       "0000-0002-4379-6454        4  [caroline wanjiru kariuki]   \n",
+       "0000-0003-2311-0600        2           [myo kyaw hlaing]   \n",
+       "\n",
+       "                              activation_date          last_update_date  \\\n",
+       "0000-0002-3505-2797  2017-10-01t00:46:31.324z  2019-08-19t15:52:47.253z   \n",
+       "0000-0003-3670-9620  2016-08-29t20:32:10.362z  2021-02-09t04:56:35.554z   \n",
+       "0000-0002-5441-0465  2015-11-28t07:18:58.442z  2021-03-05t16:37:47.403z   \n",
+       "0000-0002-7781-6767  2016-09-06t02:25:52.974z  2020-10-20t06:55:55.051z   \n",
+       "0000-0001-7010-2908  2013-12-12t00:33:58.190z  2020-10-12t14:43:00.749z   \n",
+       "...                                       ...                       ...   \n",
+       "0000-0002-9446-9496  2015-03-08t20:37:16.590z  2021-03-12t22:05:28.976z   \n",
+       "0000-0003-0579-5829  2017-12-30t19:25:41.566z  2021-03-13t23:21:59.069z   \n",
+       "0000-0001-8960-9004  2019-07-10t06:50:46.255z  2020-10-07t04:08:01.961z   \n",
+       "0000-0002-4379-6454  2020-03-18t10:18:04.007z  2021-02-11t14:40:38.515z   \n",
+       "0000-0003-2311-0600  2018-12-26t12:51:57.801z  2021-01-26t14:36:47.421z   \n",
+       "\n",
+       "                     n_doi  n_arxiv  n_pmc  n_other_pids  label  \\\n",
+       "0000-0002-3505-2797      3        0      0             3      0   \n",
+       "0000-0003-3670-9620      0        0      0             0      0   \n",
+       "0000-0002-5441-0465      1        0      0             4      0   \n",
+       "0000-0002-7781-6767     24        0      0            35      0   \n",
+       "0000-0001-7010-2908     17        0      0            60      0   \n",
+       "...                    ...      ...    ...           ...    ...   \n",
+       "0000-0002-9446-9496      0        0      0             0      0   \n",
+       "0000-0003-0579-5829     13        0      0            28      0   \n",
+       "0000-0001-8960-9004     19        0      0            33      0   \n",
+       "0000-0002-4379-6454      1        0      0             0      0   \n",
+       "0000-0003-2311-0600      1        0      0             2      0   \n",
+       "\n",
+       "                    primary_email_domain     other_email_domains  \\\n",
+       "0000-0002-3505-2797                  NaN                     NaN   \n",
+       "0000-0003-3670-9620                  NaN                     NaN   \n",
+       "0000-0002-5441-0465                  NaN                     NaN   \n",
+       "0000-0002-7781-6767                  NaN                     NaN   \n",
+       "0000-0001-7010-2908                  NaN                     NaN   \n",
+       "...                                  ...                     ...   \n",
+       "0000-0002-9446-9496                  NaN                     NaN   \n",
+       "0000-0003-0579-5829                  NaN                     NaN   \n",
+       "0000-0001-8960-9004        alzahra.ac.ir  [gmail.com, gmail.com]   \n",
+       "0000-0002-4379-6454                  NaN                     NaN   \n",
+       "0000-0003-2311-0600                  NaN                     NaN   \n",
+       "\n",
+       "                                                           url_domains  \\\n",
+       "0000-0002-3505-2797  [google.com, ristekdikti.go.id, unsyiah.ac.id,...   \n",
+       "0000-0003-3670-9620  [blogspot.mx, behance.net, authorstream.com, d...   \n",
+       "0000-0002-5441-0465  [feriaempresamujer.com, escueladenegociosydire...   \n",
+       "0000-0002-7781-6767  [google.com.my, researchgate.net, academia.edu...   \n",
+       "0000-0001-7010-2908  [iscap.pt, google.pt, academia.edu, researchga...   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9446-9496  [us.es, us.es, us.es, google.es, microsoft.com...   \n",
+       "0000-0003-0579-5829  [academia.edu, redalyc.org, directorioexit.inf...   \n",
+       "0000-0001-8960-9004  [scopus.com, google.com, publons.com, zenodo.o...   \n",
+       "0000-0002-4379-6454  [scopus.com, mendeley.com, publons.com, resear...   \n",
+       "0000-0003-2311-0600  [facebook.com, linkedin.com, instagram.com, re...   \n",
+       "\n",
+       "                     n_emails  n_urls  n_ids  n_keywords  n_education  \\\n",
+       "0000-0002-3505-2797       NaN    16.0    1.0         NaN          2.0   \n",
+       "0000-0003-3670-9620       NaN    24.0    1.0         8.0          NaN   \n",
+       "0000-0002-5441-0465       NaN    16.0    NaN         7.0         19.0   \n",
+       "0000-0002-7781-6767       NaN    16.0    2.0        10.0          NaN   \n",
+       "0000-0001-7010-2908       NaN    13.0    1.0         6.0          8.0   \n",
+       "...                       ...     ...    ...         ...          ...   \n",
+       "0000-0002-9446-9496       NaN    12.0    1.0         5.0          5.0   \n",
+       "0000-0003-0579-5829       NaN    11.0    1.0         6.0          4.0   \n",
+       "0000-0001-8960-9004       2.0    11.0    1.0         4.0          3.0   \n",
+       "0000-0002-4379-6454       NaN    13.0    NaN         4.0          3.0   \n",
+       "0000-0003-2311-0600       NaN    12.0    NaN         1.0          NaN   \n",
+       "\n",
+       "                     n_employment  \n",
+       "0000-0002-3505-2797           1.0  \n",
+       "0000-0003-3670-9620           NaN  \n",
+       "0000-0002-5441-0465          16.0  \n",
+       "0000-0002-7781-6767           4.0  \n",
+       "0000-0001-7010-2908          37.0  \n",
+       "...                           ...  \n",
+       "0000-0002-9446-9496           1.0  \n",
+       "0000-0003-0579-5829           3.0  \n",
+       "0000-0001-8960-9004           4.0  \n",
+       "0000-0002-4379-6454           6.0  \n",
+       "0000-0003-2311-0600           2.0  \n",
+       "\n",
+       "[141 rows x 30 columns]"
+      ]
+     },
+     "execution_count": 32,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df[(df['url_domains'].str.len() > 10) & (df['n_works'] > 0) & (df['works_source'].str.len() == 1)]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 33,
    "metadata": {
     "scrolled": true
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
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+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
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+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>carlos</td>\n",
+       "      <td>barrera</td>\n",
+       "      <td>im individual inventor, and this is my work; s...</td>\n",
+       "      <td>[retrodynamic, novelinflow]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[gearturbine, mechanical, power, innovation, t...</td>\n",
+       "      <td>[[loop profile, 394457]]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1</td>\n",
+       "      <td>carlos barrera</td>\n",
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+       "      <td>2021-02-09t04:56:35.554z</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[blogspot.mx, behance.net, authorstream.com, d...</td>\n",
+       "      <td>NaN</td>\n",
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+       "      <th>2</th>\n",
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+       "      <td>nuria</td>\n",
+       "      <td>hernández-león</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[nuria h. león, nuria hernández león, hernánde...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[marketing, research, human resources, busines...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, course: social skills, university of salam...</td>\n",
+       "      <td>[[merchandise reception and expedition trainer...</td>\n",
+       "      <td>11</td>\n",
+       "      <td>nuria hernández-león</td>\n",
+       "      <td>2015-11-28t07:18:58.442z</td>\n",
+       "      <td>2021-03-05t16:37:47.403z</td>\n",
+       "      <td>1</td>\n",
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+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>mohd nazri</td>\n",
+       "      <td>ismail</td>\n",
+       "      <td>born in penang, malaysia in 1971, dr. mohd had...</td>\n",
+       "      <td>[ndum (national defence university of malaysia)]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[network communication, manet, wsn, network se...</td>\n",
+       "      <td>[[scopus author id, 24372977800], [researcheri...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[lecturer, universiti pertahanan nasional mal...</td>\n",
+       "      <td>35</td>\n",
+       "      <td>scopus - elsevier</td>\n",
+       "      <td>2016-09-06t02:25:52.974z</td>\n",
+       "      <td>2020-10-20t06:55:55.051z</td>\n",
+       "      <td>24</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>35</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[google.com.my, researchgate.net, academia.edu...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>16.0</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>10.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>4.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>clara</td>\n",
+       "      <td>sarmento</td>\n",
+       "      <td>clara sarmento holds an aggregation in cultura...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[ethnography, tourism and business, anglo-amer...</td>\n",
+       "      <td>[[ciência id, d418-d6f8-7d49]]</td>\n",
+       "      <td>[[ao abrigo da bolsa santander ie best practic...</td>\n",
+       "      <td>[[presidente da comissão de acreditação do nov...</td>\n",
+       "      <td>275</td>\n",
+       "      <td>clara sarmento</td>\n",
+       "      <td>2013-12-12t00:33:58.190z</td>\n",
+       "      <td>2020-10-12t14:43:00.749z</td>\n",
+       "      <td>17</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>60</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[iscap.pt, google.pt, academia.edu, researchga...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>13.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>6.0</td>\n",
+       "      <td>8.0</td>\n",
+       "      <td>37.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>136</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>jesús</td>\n",
+       "      <td>portillo-fernández</td>\n",
+       "      <td>ba in philosophy, ba in humanities, ph.d. in p...</td>\n",
+       "      <td>[jesús portillo fernández, portillo-fernández,...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[absurdo, lingüística, pragmática, filosofía d...</td>\n",
+       "      <td>[[scopus author id, 55229372800]]</td>\n",
+       "      <td>[[, doctor en filología, universidad de sevill...</td>\n",
+       "      <td>[[, grupo de investigación en lógica, lenguaje...</td>\n",
+       "      <td>35</td>\n",
+       "      <td>jesús portillo-fernández</td>\n",
+       "      <td>2015-03-08t20:37:16.590z</td>\n",
+       "      <td>2021-03-12t22:05:28.976z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[us.es, us.es, us.es, google.es, microsoft.com...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>12.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>1.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>137</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>ángel</td>\n",
+       "      <td>carrión-tavárez</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[ángel carrión tavárez, á carrión tavárez, ác ...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[editing and publishing, sociomusicology, geog...</td>\n",
+       "      <td>[[loop profile, 687295]]</td>\n",
+       "      <td>[[integration and economic and territorial dev...</td>\n",
+       "      <td>[[director, university of puerto rico at río p...</td>\n",
+       "      <td>132</td>\n",
+       "      <td>ángel carrión-tavárez</td>\n",
+       "      <td>2017-12-30t19:25:41.566z</td>\n",
+       "      <td>2021-03-13t23:21:59.069z</td>\n",
+       "      <td>13</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>28</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[academia.edu, redalyc.org, directorioexit.inf...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>6.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>3.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>138</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>susan</td>\n",
+       "      <td>bastani</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[s. bastani, سوسن باستانی]</td>\n",
+       "      <td>sbastani@alzahra.ac.ir</td>\n",
+       "      <td>[social networks, online and offline communiti...</td>\n",
+       "      <td>[[scopus author id, 16642098400]]</td>\n",
+       "      <td>[[sociology, ph.d., university of toronto, tor...</td>\n",
+       "      <td>[[professor, alzahra university, tehran, vanak...</td>\n",
+       "      <td>20</td>\n",
+       "      <td>scopus - elsevier</td>\n",
+       "      <td>2019-07-10t06:50:46.255z</td>\n",
+       "      <td>2020-10-07t04:08:01.961z</td>\n",
+       "      <td>19</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>33</td>\n",
+       "      <td>0</td>\n",
+       "      <td>alzahra.ac.ir</td>\n",
+       "      <td>[gmail.com, gmail.com]</td>\n",
+       "      <td>[scopus.com, google.com, publons.com, zenodo.o...</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>11.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>4.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>139</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>caroline wanjiru</td>\n",
+       "      <td>kariuki</td>\n",
+       "      <td>caroline holds a phd in economics from curtin ...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[applied economics, financial economics, appli...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[economics, doctor of philosophy , curtin uni...</td>\n",
+       "      <td>[[director, educational development, strathmor...</td>\n",
+       "      <td>4</td>\n",
+       "      <td>caroline wanjiru kariuki</td>\n",
+       "      <td>2020-03-18t10:18:04.007z</td>\n",
+       "      <td>2021-02-11t14:40:38.515z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[scopus.com, mendeley.com, publons.com, resear...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>13.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>6.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>140</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>myo</td>\n",
+       "      <td>kyaw hlaing</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[dr myo kyaw hlaing]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[economic geology]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[lecturer, union of myanmar ministry of educa...</td>\n",
+       "      <td>2</td>\n",
+       "      <td>myo kyaw hlaing</td>\n",
+       "      <td>2018-12-26t12:51:57.801z</td>\n",
+       "      <td>2021-01-26t14:36:47.421z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[facebook.com, linkedin.com, instagram.com, re...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>12.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>141 rows × 30 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "     orcid  verified_email  verified_primary_email       given_names  \\\n",
+       "0        1               1                       1             nurul   \n",
+       "1        1               1                       1            carlos   \n",
+       "2        1               1                       1             nuria   \n",
+       "3        1               1                       1        mohd nazri   \n",
+       "4        1               1                       1             clara   \n",
+       "..     ...             ...                     ...               ...   \n",
+       "136      1               1                       1             jesús   \n",
+       "137      1               1                       1             ángel   \n",
+       "138      1               1                       1             susan   \n",
+       "139      1               1                       1  caroline wanjiru   \n",
+       "140      1               1                       1               myo   \n",
+       "\n",
+       "            family_name                                          biography  \\\n",
+       "0            malahayati                                     google scholar   \n",
+       "1               barrera  im individual inventor, and this is my work; s...   \n",
+       "2        hernández-león                                                NaN   \n",
+       "3                ismail  born in penang, malaysia in 1971, dr. mohd had...   \n",
+       "4              sarmento  clara sarmento holds an aggregation in cultura...   \n",
+       "..                  ...                                                ...   \n",
+       "136  portillo-fernández  ba in philosophy, ba in humanities, ph.d. in p...   \n",
+       "137     carrión-tavárez                                                NaN   \n",
+       "138             bastani                                                NaN   \n",
+       "139             kariuki  caroline holds a phd in economics from curtin ...   \n",
+       "140         kyaw hlaing                                                NaN   \n",
+       "\n",
+       "                                           other_names  \\\n",
+       "0                                                  NaN   \n",
+       "1                          [retrodynamic, novelinflow]   \n",
+       "2    [nuria h. león, nuria hernández león, hernánde...   \n",
+       "3     [ndum (national defence university of malaysia)]   \n",
+       "4                                                  NaN   \n",
+       "..                                                 ...   \n",
+       "136  [jesús portillo fernández, portillo-fernández,...   \n",
+       "137  [ángel carrión tavárez, á carrión tavárez, ác ...   \n",
+       "138                         [s. bastani, سوسن باستانی]   \n",
+       "139                                                NaN   \n",
+       "140                               [dr myo kyaw hlaing]   \n",
+       "\n",
+       "              primary_email  \\\n",
+       "0                       NaN   \n",
+       "1                       NaN   \n",
+       "2                       NaN   \n",
+       "3                       NaN   \n",
+       "4                       NaN   \n",
+       "..                      ...   \n",
+       "136                     NaN   \n",
+       "137                     NaN   \n",
+       "138  sbastani@alzahra.ac.ir   \n",
+       "139                     NaN   \n",
+       "140                     NaN   \n",
+       "\n",
+       "                                              keywords  \\\n",
+       "0                                                  NaN   \n",
+       "1    [gearturbine, mechanical, power, innovation, t...   \n",
+       "2    [marketing, research, human resources, busines...   \n",
+       "3    [network communication, manet, wsn, network se...   \n",
+       "4    [ethnography, tourism and business, anglo-amer...   \n",
+       "..                                                 ...   \n",
+       "136  [absurdo, lingüística, pragmática, filosofía d...   \n",
+       "137  [editing and publishing, sociomusicology, geog...   \n",
+       "138  [social networks, online and offline communiti...   \n",
+       "139  [applied economics, financial economics, appli...   \n",
+       "140                                 [economic geology]   \n",
+       "\n",
+       "                                          external_ids  \\\n",
+       "0                        [[researcherid, q-3861-2017]]   \n",
+       "1                             [[loop profile, 394457]]   \n",
+       "2                                                  NaN   \n",
+       "3    [[scopus author id, 24372977800], [researcheri...   \n",
+       "4                       [[ciência id, d418-d6f8-7d49]]   \n",
+       "..                                                 ...   \n",
+       "136                  [[scopus author id, 55229372800]]   \n",
+       "137                           [[loop profile, 687295]]   \n",
+       "138                  [[scopus author id, 16642098400]]   \n",
+       "139                                                NaN   \n",
+       "140                                                NaN   \n",
+       "\n",
+       "                                             education  \\\n",
+       "0    [[civil and transportation engineering , maste...   \n",
+       "1                                                  NaN   \n",
+       "2    [[, course: social skills, university of salam...   \n",
+       "3                                                  NaN   \n",
+       "4    [[ao abrigo da bolsa santander ie best practic...   \n",
+       "..                                                 ...   \n",
+       "136  [[, doctor en filología, universidad de sevill...   \n",
+       "137  [[integration and economic and territorial dev...   \n",
+       "138  [[sociology, ph.d., university of toronto, tor...   \n",
+       "139  [[economics, doctor of philosophy , curtin uni...   \n",
+       "140                                                NaN   \n",
+       "\n",
+       "                                            employment  n_works  \\\n",
+       "0    [[senior lecturer, universitas syiah kuala, ba...        6   \n",
+       "1                                                  NaN        1   \n",
+       "2    [[merchandise reception and expedition trainer...       11   \n",
+       "3    [[lecturer, universiti pertahanan nasional mal...       35   \n",
+       "4    [[presidente da comissão de acreditação do nov...      275   \n",
+       "..                                                 ...      ...   \n",
+       "136  [[, grupo de investigación en lógica, lenguaje...       35   \n",
+       "137  [[director, university of puerto rico at río p...      132   \n",
+       "138  [[professor, alzahra university, tehran, vanak...       20   \n",
+       "139  [[director, educational development, strathmor...        4   \n",
+       "140  [[lecturer, union of myanmar ministry of educa...        2   \n",
+       "\n",
+       "                 works_source           activation_date  \\\n",
+       "0            nurul malahayati  2017-10-01t00:46:31.324z   \n",
+       "1              carlos barrera  2016-08-29t20:32:10.362z   \n",
+       "2        nuria hernández-león  2015-11-28t07:18:58.442z   \n",
+       "3           scopus - elsevier  2016-09-06t02:25:52.974z   \n",
+       "4              clara sarmento  2013-12-12t00:33:58.190z   \n",
+       "..                        ...                       ...   \n",
+       "136  jesús portillo-fernández  2015-03-08t20:37:16.590z   \n",
+       "137     ángel carrión-tavárez  2017-12-30t19:25:41.566z   \n",
+       "138         scopus - elsevier  2019-07-10t06:50:46.255z   \n",
+       "139  caroline wanjiru kariuki  2020-03-18t10:18:04.007z   \n",
+       "140           myo kyaw hlaing  2018-12-26t12:51:57.801z   \n",
+       "\n",
+       "             last_update_date  n_doi  n_arxiv  n_pmc  n_other_pids  label  \\\n",
+       "0    2019-08-19t15:52:47.253z      3        0      0             3      0   \n",
+       "1    2021-02-09t04:56:35.554z      0        0      0             0      0   \n",
+       "2    2021-03-05t16:37:47.403z      1        0      0             4      0   \n",
+       "3    2020-10-20t06:55:55.051z     24        0      0            35      0   \n",
+       "4    2020-10-12t14:43:00.749z     17        0      0            60      0   \n",
+       "..                        ...    ...      ...    ...           ...    ...   \n",
+       "136  2021-03-12t22:05:28.976z      0        0      0             0      0   \n",
+       "137  2021-03-13t23:21:59.069z     13        0      0            28      0   \n",
+       "138  2020-10-07t04:08:01.961z     19        0      0            33      0   \n",
+       "139  2021-02-11t14:40:38.515z      1        0      0             0      0   \n",
+       "140  2021-01-26t14:36:47.421z      1        0      0             2      0   \n",
+       "\n",
+       "    primary_email_domain     other_email_domains  \\\n",
+       "0                    NaN                     NaN   \n",
+       "1                    NaN                     NaN   \n",
+       "2                    NaN                     NaN   \n",
+       "3                    NaN                     NaN   \n",
+       "4                    NaN                     NaN   \n",
+       "..                   ...                     ...   \n",
+       "136                  NaN                     NaN   \n",
+       "137                  NaN                     NaN   \n",
+       "138        alzahra.ac.ir  [gmail.com, gmail.com]   \n",
+       "139                  NaN                     NaN   \n",
+       "140                  NaN                     NaN   \n",
+       "\n",
+       "                                           url_domains  n_emails  n_urls  \\\n",
+       "0    [google.com, ristekdikti.go.id, unsyiah.ac.id,...       NaN    16.0   \n",
+       "1    [blogspot.mx, behance.net, authorstream.com, d...       NaN    24.0   \n",
+       "2    [feriaempresamujer.com, escueladenegociosydire...       NaN    16.0   \n",
+       "3    [google.com.my, researchgate.net, academia.edu...       NaN    16.0   \n",
+       "4    [iscap.pt, google.pt, academia.edu, researchga...       NaN    13.0   \n",
+       "..                                                 ...       ...     ...   \n",
+       "136  [us.es, us.es, us.es, google.es, microsoft.com...       NaN    12.0   \n",
+       "137  [academia.edu, redalyc.org, directorioexit.inf...       NaN    11.0   \n",
+       "138  [scopus.com, google.com, publons.com, zenodo.o...       2.0    11.0   \n",
+       "139  [scopus.com, mendeley.com, publons.com, resear...       NaN    13.0   \n",
+       "140  [facebook.com, linkedin.com, instagram.com, re...       NaN    12.0   \n",
+       "\n",
+       "     n_ids  n_keywords  n_education  n_employment  \n",
+       "0      1.0         NaN          2.0           1.0  \n",
+       "1      1.0         8.0          NaN           NaN  \n",
+       "2      NaN         7.0         19.0          16.0  \n",
+       "3      2.0        10.0          NaN           4.0  \n",
+       "4      1.0         6.0          8.0          37.0  \n",
+       "..     ...         ...          ...           ...  \n",
+       "136    1.0         5.0          5.0           1.0  \n",
+       "137    1.0         6.0          4.0           3.0  \n",
+       "138    1.0         4.0          3.0           4.0  \n",
+       "139    NaN         4.0          3.0           6.0  \n",
+       "140    NaN         1.0          NaN           2.0  \n",
+       "\n",
+       "[141 rows x 30 columns]"
+      ]
+     },
+     "execution_count": 33,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "exploded_sources = df[(df['url_domains'].str.len() > 10) & (df['n_works'] > 0) & (df['works_source'].str.len() == 1)].explode('works_source').reset_index(drop=True)\n",
     "exploded_sources"
@@ -1046,11 +9918,598 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 34,
    "metadata": {
     "scrolled": true
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
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+       "      <td>1</td>\n",
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+       "      <td>nurul malahayati</td>\n",
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+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>carlos</td>\n",
+       "      <td>barrera</td>\n",
+       "      <td>im individual inventor, and this is my work; s...</td>\n",
+       "      <td>[retrodynamic, novelinflow]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[gearturbine, mechanical, power, innovation, t...</td>\n",
+       "      <td>[[loop profile, 394457]]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1</td>\n",
+       "      <td>carlos barrera</td>\n",
+       "      <td>2016-08-29t20:32:10.362z</td>\n",
+       "      <td>2021-02-09t04:56:35.554z</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>[blogspot.mx, behance.net, authorstream.com, d...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>24.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>8.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
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+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>nuria</td>\n",
+       "      <td>hernández-león</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[nuria h. león, nuria hernández león, hernánde...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[marketing, research, human resources, busines...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, course: social skills, university of salam...</td>\n",
+       "      <td>[[merchandise reception and expedition trainer...</td>\n",
+       "      <td>11</td>\n",
+       "      <td>nuria hernández-león</td>\n",
+       "      <td>2015-11-28t07:18:58.442z</td>\n",
+       "      <td>2021-03-05t16:37:47.403z</td>\n",
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+       "      <td>0</td>\n",
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+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[feriaempresamujer.com, escueladenegociosydire...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>16.0</td>\n",
+       "      <td>NaN</td>\n",
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+       "      <th>4</th>\n",
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+       "      <td>1</td>\n",
+       "      <td>clara</td>\n",
+       "      <td>sarmento</td>\n",
+       "      <td>clara sarmento holds an aggregation in cultura...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[ethnography, tourism and business, anglo-amer...</td>\n",
+       "      <td>[[ciência id, d418-d6f8-7d49]]</td>\n",
+       "      <td>[[ao abrigo da bolsa santander ie best practic...</td>\n",
+       "      <td>[[presidente da comissão de acreditação do nov...</td>\n",
+       "      <td>275</td>\n",
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+       "      <td>2020-10-12t14:43:00.749z</td>\n",
+       "      <td>17</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>NaN</td>\n",
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+       "      <td>NaN</td>\n",
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+       "      <td>1.0</td>\n",
+       "      <td>6.0</td>\n",
+       "      <td>8.0</td>\n",
+       "      <td>37.0</td>\n",
+       "    </tr>\n",
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+       "      <th>5</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>michele</td>\n",
+       "      <td>dantini</td>\n",
+       "      <td>michele dantini (ph. d) is professor of histor...</td>\n",
+       "      <td>NaN</td>\n",
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+       "      <td>[contemporary art, art theory, postcolonial, h...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[, università per stranieri di perugia, perug...</td>\n",
+       "      <td>6</td>\n",
+       "      <td>michele dantini</td>\n",
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+       "      <td>2019-11-25t20:21:04.714z</td>\n",
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+       "    <tr>\n",
+       "      <th>134</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>robert</td>\n",
+       "      <td>ohara</td>\n",
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+       "      <td>45</td>\n",
+       "      <td>robert j. o’hara</td>\n",
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+       "      <td>2020-07-09t06:51:09.228z</td>\n",
+       "      <td>23</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>[rjohara.net, google.com, collegiateway.org, r...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>12.0</td>\n",
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+       "      <td>5.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>136</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>jesús</td>\n",
+       "      <td>portillo-fernández</td>\n",
+       "      <td>ba in philosophy, ba in humanities, ph.d. in p...</td>\n",
+       "      <td>[jesús portillo fernández, portillo-fernández,...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[absurdo, lingüística, pragmática, filosofía d...</td>\n",
+       "      <td>[[scopus author id, 55229372800]]</td>\n",
+       "      <td>[[, doctor en filología, universidad de sevill...</td>\n",
+       "      <td>[[, grupo de investigación en lógica, lenguaje...</td>\n",
+       "      <td>35</td>\n",
+       "      <td>jesús portillo-fernández</td>\n",
+       "      <td>2015-03-08t20:37:16.590z</td>\n",
+       "      <td>2021-03-12t22:05:28.976z</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[us.es, us.es, us.es, google.es, microsoft.com...</td>\n",
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+       "      <td>1.0</td>\n",
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+       "      <th>137</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>ángel</td>\n",
+       "      <td>carrión-tavárez</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[ángel carrión tavárez, á carrión tavárez, ác ...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[editing and publishing, sociomusicology, geog...</td>\n",
+       "      <td>[[loop profile, 687295]]</td>\n",
+       "      <td>[[integration and economic and territorial dev...</td>\n",
+       "      <td>[[director, university of puerto rico at río p...</td>\n",
+       "      <td>132</td>\n",
+       "      <td>ángel carrión-tavárez</td>\n",
+       "      <td>2017-12-30t19:25:41.566z</td>\n",
+       "      <td>2021-03-13t23:21:59.069z</td>\n",
+       "      <td>13</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>6.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>3.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>139</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>caroline wanjiru</td>\n",
+       "      <td>kariuki</td>\n",
+       "      <td>caroline holds a phd in economics from curtin ...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[applied economics, financial economics, appli...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[economics, doctor of philosophy , curtin uni...</td>\n",
+       "      <td>[[director, educational development, strathmor...</td>\n",
+       "      <td>4</td>\n",
+       "      <td>caroline wanjiru kariuki</td>\n",
+       "      <td>2020-03-18t10:18:04.007z</td>\n",
+       "      <td>2021-02-11t14:40:38.515z</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0</td>\n",
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+       "      <td>[scopus.com, mendeley.com, publons.com, resear...</td>\n",
+       "      <td>NaN</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>4.0</td>\n",
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+       "      <th>140</th>\n",
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+       "      <td>myo</td>\n",
+       "      <td>kyaw hlaing</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[dr myo kyaw hlaing]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[economic geology]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[[lecturer, union of myanmar ministry of educa...</td>\n",
+       "      <td>2</td>\n",
+       "      <td>myo kyaw hlaing</td>\n",
+       "      <td>2018-12-26t12:51:57.801z</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>[facebook.com, linkedin.com, instagram.com, re...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>12.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2.0</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>115 rows × 30 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "     orcid  verified_email  verified_primary_email       given_names  \\\n",
+       "0        1               1                       1             nurul   \n",
+       "1        1               1                       1            carlos   \n",
+       "2        1               1                       1             nuria   \n",
+       "4        1               1                       1             clara   \n",
+       "5        1               1                       1           michele   \n",
+       "..     ...             ...                     ...               ...   \n",
+       "134      1               1                       1            robert   \n",
+       "136      1               1                       1             jesús   \n",
+       "137      1               1                       1             ángel   \n",
+       "139      1               1                       1  caroline wanjiru   \n",
+       "140      1               1                       1               myo   \n",
+       "\n",
+       "            family_name                                          biography  \\\n",
+       "0            malahayati                                     google scholar   \n",
+       "1               barrera  im individual inventor, and this is my work; s...   \n",
+       "2        hernández-león                                                NaN   \n",
+       "4              sarmento  clara sarmento holds an aggregation in cultura...   \n",
+       "5               dantini  michele dantini (ph. d) is professor of histor...   \n",
+       "..                  ...                                                ...   \n",
+       "134               ohara  systematics, evolutionary biology, and the his...   \n",
+       "136  portillo-fernández  ba in philosophy, ba in humanities, ph.d. in p...   \n",
+       "137     carrión-tavárez                                                NaN   \n",
+       "139             kariuki  caroline holds a phd in economics from curtin ...   \n",
+       "140         kyaw hlaing                                                NaN   \n",
+       "\n",
+       "                                           other_names primary_email  \\\n",
+       "0                                                  NaN           NaN   \n",
+       "1                          [retrodynamic, novelinflow]           NaN   \n",
+       "2    [nuria h. león, nuria hernández león, hernánde...           NaN   \n",
+       "4                                                  NaN           NaN   \n",
+       "5                                                  NaN           NaN   \n",
+       "..                                                 ...           ...   \n",
+       "134  [r. o’hara, r.j. o’hara, robert o’hara, robert...           NaN   \n",
+       "136  [jesús portillo fernández, portillo-fernández,...           NaN   \n",
+       "137  [ángel carrión tavárez, á carrión tavárez, ác ...           NaN   \n",
+       "139                                                NaN           NaN   \n",
+       "140                               [dr myo kyaw hlaing]           NaN   \n",
+       "\n",
+       "                                              keywords  \\\n",
+       "0                                                  NaN   \n",
+       "1    [gearturbine, mechanical, power, innovation, t...   \n",
+       "2    [marketing, research, human resources, busines...   \n",
+       "4    [ethnography, tourism and business, anglo-amer...   \n",
+       "5    [contemporary art, art theory, postcolonial, h...   \n",
+       "..                                                 ...   \n",
+       "134  [evolutionary biology, new england genealogy, ...   \n",
+       "136  [absurdo, lingüística, pragmática, filosofía d...   \n",
+       "137  [editing and publishing, sociomusicology, geog...   \n",
+       "139  [applied economics, financial economics, appli...   \n",
+       "140                                 [economic geology]   \n",
+       "\n",
+       "                                          external_ids  \\\n",
+       "0                        [[researcherid, q-3861-2017]]   \n",
+       "1                             [[loop profile, 394457]]   \n",
+       "2                                                  NaN   \n",
+       "4                       [[ciência id, d418-d6f8-7d49]]   \n",
+       "5                                                  NaN   \n",
+       "..                                                 ...   \n",
+       "134  [[isni, 0000000138200102], [researcherid, b-47...   \n",
+       "136                  [[scopus author id, 55229372800]]   \n",
+       "137                           [[loop profile, 687295]]   \n",
+       "139                                                NaN   \n",
+       "140                                                NaN   \n",
+       "\n",
+       "                                             education  \\\n",
+       "0    [[civil and transportation engineering , maste...   \n",
+       "1                                                  NaN   \n",
+       "2    [[, course: social skills, university of salam...   \n",
+       "4    [[ao abrigo da bolsa santander ie best practic...   \n",
+       "5                                                  NaN   \n",
+       "..                                                 ...   \n",
+       "134  [[biology, ph.d., harvard university, cambridg...   \n",
+       "136  [[, doctor en filología, universidad de sevill...   \n",
+       "137  [[integration and economic and territorial dev...   \n",
+       "139  [[economics, doctor of philosophy , curtin uni...   \n",
+       "140                                                NaN   \n",
+       "\n",
+       "                                            employment  n_works  \\\n",
+       "0    [[senior lecturer, universitas syiah kuala, ba...        6   \n",
+       "1                                                  NaN        1   \n",
+       "2    [[merchandise reception and expedition trainer...       11   \n",
+       "4    [[presidente da comissão de acreditação do nov...      275   \n",
+       "5    [[, università per stranieri di perugia, perug...        6   \n",
+       "..                                                 ...      ...   \n",
+       "134                                                NaN       45   \n",
+       "136  [[, grupo de investigación en lógica, lenguaje...       35   \n",
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+       "139  [[director, educational development, strathmor...        4   \n",
+       "140  [[lecturer, union of myanmar ministry of educa...        2   \n",
+       "\n",
+       "                 works_source           activation_date  \\\n",
+       "0            nurul malahayati  2017-10-01t00:46:31.324z   \n",
+       "1              carlos barrera  2016-08-29t20:32:10.362z   \n",
+       "2        nuria hernández-león  2015-11-28t07:18:58.442z   \n",
+       "4              clara sarmento  2013-12-12t00:33:58.190z   \n",
+       "5             michele dantini  2014-02-22t17:01:43.444z   \n",
+       "..                        ...                       ...   \n",
+       "134          robert j. o’hara  2014-09-21t02:45:19.620z   \n",
+       "136  jesús portillo-fernández  2015-03-08t20:37:16.590z   \n",
+       "137     ángel carrión-tavárez  2017-12-30t19:25:41.566z   \n",
+       "139  caroline wanjiru kariuki  2020-03-18t10:18:04.007z   \n",
+       "140           myo kyaw hlaing  2018-12-26t12:51:57.801z   \n",
+       "\n",
+       "             last_update_date  n_doi  n_arxiv  n_pmc  n_other_pids  label  \\\n",
+       "0    2019-08-19t15:52:47.253z      3        0      0             3      0   \n",
+       "1    2021-02-09t04:56:35.554z      0        0      0             0      0   \n",
+       "2    2021-03-05t16:37:47.403z      1        0      0             4      0   \n",
+       "4    2020-10-12t14:43:00.749z     17        0      0            60      0   \n",
+       "5    2019-11-25t20:21:04.714z      0        0      0             0      0   \n",
+       "..                        ...    ...      ...    ...           ...    ...   \n",
+       "134  2020-07-09t06:51:09.228z     23        0      0            72      0   \n",
+       "136  2021-03-12t22:05:28.976z      0        0      0             0      0   \n",
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+       "139  2021-02-11t14:40:38.515z      1        0      0             0      0   \n",
+       "140  2021-01-26t14:36:47.421z      1        0      0             2      0   \n",
+       "\n",
+       "    primary_email_domain other_email_domains  \\\n",
+       "0                    NaN                 NaN   \n",
+       "1                    NaN                 NaN   \n",
+       "2                    NaN                 NaN   \n",
+       "4                    NaN                 NaN   \n",
+       "5                    NaN                 NaN   \n",
+       "..                   ...                 ...   \n",
+       "134                  NaN                 NaN   \n",
+       "136                  NaN                 NaN   \n",
+       "137                  NaN                 NaN   \n",
+       "139                  NaN                 NaN   \n",
+       "140                  NaN                 NaN   \n",
+       "\n",
+       "                                           url_domains  n_emails  n_urls  \\\n",
+       "0    [google.com, ristekdikti.go.id, unsyiah.ac.id,...       NaN    16.0   \n",
+       "1    [blogspot.mx, behance.net, authorstream.com, d...       NaN    24.0   \n",
+       "2    [feriaempresamujer.com, escueladenegociosydire...       NaN    16.0   \n",
+       "4    [iscap.pt, google.pt, academia.edu, researchga...       NaN    13.0   \n",
+       "5    [unipmn.it, huffingtonpost.it, roars.it, doppi...       NaN    15.0   \n",
+       "..                                                 ...       ...     ...   \n",
+       "134  [rjohara.net, google.com, collegiateway.org, r...       NaN    12.0   \n",
+       "136  [us.es, us.es, us.es, google.es, microsoft.com...       NaN    12.0   \n",
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+       "140  [facebook.com, linkedin.com, instagram.com, re...       NaN    12.0   \n",
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+       "139    NaN         4.0          3.0           6.0  \n",
+       "140    NaN         1.0          NaN           2.0  \n",
+       "\n",
+       "[115 rows x 30 columns]"
+      ]
+     },
+     "execution_count": 34,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "exploded_sources[exploded_sources.apply(lambda x: x['works_source'].find(x['given_names']) >= 0, axis=1)]"
    ]
@@ -1085,34 +10544,178 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 35,
    "metadata": {},
-   "outputs": [],
-   "source": [
-    "df['n_ids'] = df[df['external_ids'].notna()].external_ids.str.len()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "outputs": [
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+       "75%      2.000000e+00\n",
+       "max      8.000000e+01\n",
+       "Name: n_ids, dtype: float64"
+      ]
+     },
+     "execution_count": 35,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df.n_ids.describe()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 36,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
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+       "0000-0002-9554-6633      1               1                       1   \n",
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+       "                    given_names family_name biography other_names  \\\n",
+       "0000-0002-9554-6633      john a    williams       NaN         NaN   \n",
+       "\n",
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+       "0000-0002-9554-6633           NaN      NaN   \n",
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+       "0000-0002-9554-6633  [[scopus author id,  55553733518], [scopus aut...   \n",
+       "\n",
+       "                    education  \\\n",
+       "0000-0002-9554-6633       NaN   \n",
+       "\n",
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+       "\n",
+       "                     n_works               works_source  \\\n",
+       "0000-0002-9554-6633       92  [aston research explorer]   \n",
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+       "0000-0002-9554-6633     80        0      0           208      0   \n",
+       "\n",
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+       "0000-0002-9554-6633                  NaN                 NaN  [aston.ac.uk]   \n",
+       "\n",
+       "                     n_emails  n_urls  n_ids  n_keywords  n_education  \\\n",
+       "0000-0002-9554-6633       NaN     1.0   80.0         NaN          NaN   \n",
+       "\n",
+       "                     n_employment  \n",
+       "0000-0002-9554-6633           1.0  "
+      ]
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+     "execution_count": 36,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "df[df.n_ids == df.n_ids.max()]"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 37,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1121,7 +10724,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 38,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1130,16 +10733,91 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 39,
    "metadata": {},
-   "outputs": [],
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+       "    orcid                     external_ids          provider\n",
+       "9       1      [researcherid, k-4630-2014]      researcherid\n",
+       "29      1  [scopus author id, 54394231000]  scopus author id\n",
+       "47      1      [researcherid, p-2223-2018]      researcherid\n",
+       "51      1  [scopus author id, 57189297461]  scopus author id\n",
+       "65      1   [scopus author id, 8399842800]  scopus author id"
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+     "execution_count": 39,
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    "source": [
     "ids[ids.provider.notna()].head()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 40,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1148,9 +10826,970 @@
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   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 41,
    "metadata": {},
-   "outputs": [],
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+       "                            \n",
+       "var gd = document.getElementById('d679749a-90a3-426f-904b-e0d9169dce75');\n",
+       "var x = new MutationObserver(function (mutations, observer) {{\n",
+       "        var display = window.getComputedStyle(gd).display;\n",
+       "        if (!display || display === 'none') {{\n",
+       "            console.log([gd, 'removed!']);\n",
+       "            Plotly.purge(gd);\n",
+       "            observer.disconnect();\n",
+       "        }}\n",
+       "}});\n",
+       "\n",
+       "// Listen for the removal of the full notebook cells\n",
+       "var notebookContainer = gd.closest('#notebook-container');\n",
+       "if (notebookContainer) {{\n",
+       "    x.observe(notebookContainer, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "// Listen for the clearing of the current output cell\n",
+       "var outputEl = gd.closest('.output');\n",
+       "if (outputEl) {{\n",
+       "    x.observe(outputEl, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "                        })                };                });            </script>        </div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "data = [\n",
     "    go.Bar(\n",
@@ -1169,9 +11808,32 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 42,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "array([nan, 'researcherid', 'scopus author id', 'loop profile', 'gnd',\n",
+       "       'ciência id', 'researcher name resolver id', 'pitt id',\n",
+       "       'id dialnet', 'isni', 'technical university of denmark cwis',\n",
+       "       'chalmers id', 'scopus author id: ', 'scopus author id:',\n",
+       "       'hkust profile', 'hku researcherpage', '中国科学家在线', 'uow scholars',\n",
+       "       'digital author id', 'sciprofile', 'digital author id (dai)',\n",
+       "       'cti vitae', 'researcher id', 'authid', 'authenticusid',\n",
+       "       'vivo cornell', 'us epa vivo', 'escientist',\n",
+       "       'smithsonian profiles', 'authenticus', 'github', 'iauthor',\n",
+       "       'orcid id', 'dai', 'scopus id', 'scopus  id', 'google scholar',\n",
+       "       'researcherid:', 'kaken', 'dialnet id', 'researcherid: ',\n",
+       "       'une researcher id', 'sciprofiles', 'id dialnet:', 'scienceopen',\n",
+       "       'orcid', 'profile system identifier', 'custom'], dtype=object)"
+      ]
+     },
+     "execution_count": 42,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "pd.unique(ids['provider'])"
    ]
@@ -1192,94 +11854,1198 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 43,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>n_keywords</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-0673-0341</th>\n",
+       "      <td>1</td>\n",
+       "      <td>154.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-3343-5660</th>\n",
+       "      <td>1</td>\n",
+       "      <td>148.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-7060-4112</th>\n",
+       "      <td>1</td>\n",
+       "      <td>140.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-6075-3501</th>\n",
+       "      <td>1</td>\n",
+       "      <td>140.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-5287-1949</th>\n",
+       "      <td>1</td>\n",
+       "      <td>132.0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-1686-1935</th>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-3800-6331</th>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-8783-5814</th>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-7584-2283</th>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-0529-3538</th>\n",
+       "      <td>1</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>10916574 rows × 2 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  n_keywords\n",
+       "0000-0002-0673-0341      1       154.0\n",
+       "0000-0003-3343-5660      1       148.0\n",
+       "0000-0002-7060-4112      1       140.0\n",
+       "0000-0002-6075-3501      1       140.0\n",
+       "0000-0001-5287-1949      1       132.0\n",
+       "...                    ...         ...\n",
+       "0000-0002-1686-1935      1         NaN\n",
+       "0000-0002-3800-6331      1         NaN\n",
+       "0000-0002-8783-5814      1         NaN\n",
+       "0000-0002-7584-2283      1         NaN\n",
+       "0000-0003-0529-3538      1         NaN\n",
+       "\n",
+       "[10916574 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 43,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "df[df['orcid'] == AM]['keywords'].values[0]"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "I did a good job. The following instead is dirty"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df[df['orcid'] == PP]['keywords'].values[0]"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "So the keyword field needs some cleaning"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "def fix_keywords(lst):\n",
-    "        fixed = set()\n",
-    "        for k in lst:\n",
-    "            tokens = set(k.split(','))\n",
-    "            for t in tokens:\n",
-    "                fixed.add(str.strip(t))\n",
-    "        fixed.discard('')\n",
-    "        return list(fixed)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df['fixed_keywords'] = df[df.keywords.notna()]['keywords'].apply(lambda x: fix_keywords(x))"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df[df['orcid'] == PP]['fixed_keywords'].values[0]"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "df['n_keywords'] = df.keywords.str.len()"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "keywords_by_orcid = df.sort_values('n_keywords', ascending=False)[['orcid', 'n_keywords']]\n",
+    "keywords_by_orcid = df[['orcid', 'n_keywords']].sort_values('n_keywords', ascending=False)\n",
     "keywords_by_orcid"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 44,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
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\"zerolinecolor\": \"white\", \"zerolinewidth\": 2}, \"yaxis\": {\"automargin\": true, \"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\", \"title\": {\"standoff\": 15}, \"zerolinecolor\": \"white\", \"zerolinewidth\": 2}}}, \"title\": {\"text\": \"Top-50 keywords occurrence\"}, \"xaxis\": {\"tickangle\": 45, \"tickfont\": {\"size\": 12}}},                        {\"responsive\": true}                    ).then(function(){\n",
+       "                            \n",
+       "var gd = document.getElementById('c4eda312-8a34-4b05-8ae5-dfd3792c4d94');\n",
+       "var x = new MutationObserver(function (mutations, observer) {{\n",
+       "        var display = window.getComputedStyle(gd).display;\n",
+       "        if (!display || display === 'none') {{\n",
+       "            console.log([gd, 'removed!']);\n",
+       "            Plotly.purge(gd);\n",
+       "            observer.disconnect();\n",
+       "        }}\n",
+       "}});\n",
+       "\n",
+       "// Listen for the removal of the full notebook cells\n",
+       "var notebookContainer = gd.closest('#notebook-container');\n",
+       "if (notebookContainer) {{\n",
+       "    x.observe(notebookContainer, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "// Listen for the clearing of the current output cell\n",
+       "var outputEl = gd.closest('.output');\n",
+       "if (outputEl) {{\n",
+       "    x.observe(outputEl, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "                        })                };                });            </script>        </div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
     "set_top_n(50)\n",
     "data = [\n",
@@ -1337,7 +14070,24 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Correlation"
+    "## Education"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 47,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def extract_education(lst):\n",
+    "    educations = []\n",
+    "    for e in lst:\n",
+    "        # e[0] degree\n",
+    "        # e[1] role\n",
+    "        # e[2] university\n",
+    "        # e[..] city, region, country, id, id_scheme\n",
+    "        educations.append(' '.join([e[0], e[1], e[2]]))\n",
+    "    return educations"
    ]
   },
   {
@@ -1345,8 +14095,2243 @@
    "execution_count": null,
    "metadata": {},
    "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
    "source": [
-    "fig = px.imshow(df.fillna(0).corr())\n",
+    "## Employment"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 48,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def extract_employment(lst):\n",
+    "    res = []\n",
+    "    for e in lst:\n",
+    "        # e[0] role\n",
+    "        # e[1] institute\n",
+    "        # e[..] city, region, country, id, id_scheme\n",
+    "        res.append(' '.join([e[0], e[1]]))\n",
+    "    return res"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Biography"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 49,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df['biography'] = df[df.biography.notna()]['biography'].replace('', np.NaN)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 50,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "count                                                348649\n",
+       "unique                                               332523\n",
+       "top       car title loans are a more straightforward way...\n",
+       "freq                                                    343\n",
+       "Name: biography, dtype: object"
+      ]
+     },
+     "execution_count": 50,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df.biography.describe()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 51,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
+       "      <th>given_names</th>\n",
+       "      <th>family_name</th>\n",
+       "      <th>biography</th>\n",
+       "      <th>other_names</th>\n",
+       "      <th>primary_email</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
+       "      <th>employment</th>\n",
+       "      <th>n_works</th>\n",
+       "      <th>works_source</th>\n",
+       "      <th>activation_date</th>\n",
+       "      <th>last_update_date</th>\n",
+       "      <th>n_doi</th>\n",
+       "      <th>n_arxiv</th>\n",
+       "      <th>n_pmc</th>\n",
+       "      <th>n_other_pids</th>\n",
+       "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-7397-7977</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>premium car</td>\n",
+       "      <td>title loans</td>\n",
+       "      <td>car title loans are a more straightforward way...</td>\n",
+       "      <td>[premium car title loans]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[car title loan upland]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-11-06t06:10:20.070z</td>\n",
+       "      <td>2020-11-06t06:24:28.005z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
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+       "      <td>[premiumcartitleloans.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-4931-9736</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>premium car</td>\n",
+       "      <td>title loans</td>\n",
+       "      <td>car title loans are a more straightforward way...</td>\n",
+       "      <td>[premium car title loans]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[car title loan saratoga]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-11-13t01:04:19.859z</td>\n",
+       "      <td>2020-11-13t01:15:12.546z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[premiumcartitleloans.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-8221-2303</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>premium car</td>\n",
+       "      <td>title loans</td>\n",
+       "      <td>car title loans are a more straightforward way...</td>\n",
+       "      <td>[premium car title loans]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[car title loan victorville]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-11-05t00:38:21.096z</td>\n",
+       "      <td>2020-11-05t00:40:40.091z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[premiumcartitleloans.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-6736-072X</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>premium car</td>\n",
+       "      <td>title loans</td>\n",
+       "      <td>car title loans are a more straightforward way...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-12-08t05:38:30.786z</td>\n",
+       "      <td>2020-12-08t05:40:03.786z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[premiumcartitleloans.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-8727-1246</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>premium car</td>\n",
+       "      <td>title loans</td>\n",
+       "      <td>car title loans are a more straightforward way...</td>\n",
+       "      <td>[loan agency]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[car title loan online, car title loan north o...</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-12-10t08:54:56.127z</td>\n",
+       "      <td>2020-12-10t08:57:15.791z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[premiumcartitleloans.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
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+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-9640-8136</th>\n",
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+       "      <td>car title loans are a more straightforward way...</td>\n",
+       "      <td>[premium car title loans]</td>\n",
+       "      <td>NaN</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-10-22t06:11:02.945z</td>\n",
+       "      <td>2020-10-22t06:17:09.111z</td>\n",
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+       "      <td>[premiumcartitleloans.com]</td>\n",
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+       "      <td>1.0</td>\n",
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+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-6926-3752</th>\n",
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+       "      <td>NaN</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-3655-4713</th>\n",
+       "      <td>1</td>\n",
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+       "      <td>[car title loan san rafael]</td>\n",
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+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-8724-1020</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>premium car</td>\n",
+       "      <td>title loans</td>\n",
+       "      <td>car title loans are a more straightforward way...</td>\n",
+       "      <td>[premium car title loans]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[car title loan san juan capistrano]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-11-19t00:31:54.080z</td>\n",
+       "      <td>2020-11-19t00:34:08.721z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[premiumcartitleloans.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-4601-4569</th>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>1</td>\n",
+       "      <td>premium car</td>\n",
+       "      <td>title loans</td>\n",
+       "      <td>car title loans are a more straightforward way...</td>\n",
+       "      <td>[premium car title loans]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[car title loan mount pleasant]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>2020-10-16t00:32:26.207z</td>\n",
+       "      <td>2020-10-16t00:37:42.646z</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>[premiumcartitleloans.com]</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>NaN</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>421 rows × 30 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid  verified_email  verified_primary_email  \\\n",
+       "0000-0002-7397-7977      1               1                       1   \n",
+       "0000-0003-4931-9736      1               1                       1   \n",
+       "0000-0001-8221-2303      1               1                       1   \n",
+       "0000-0001-6736-072X      1               1                       1   \n",
+       "0000-0002-8727-1246      1               1                       1   \n",
+       "...                    ...             ...                     ...   \n",
+       "0000-0002-9640-8136      1               1                       1   \n",
+       "0000-0002-6926-3752      1               1                       1   \n",
+       "0000-0002-3655-4713      1               1                       1   \n",
+       "0000-0002-8724-1020      1               1                       1   \n",
+       "0000-0002-4601-4569      1               1                       1   \n",
+       "\n",
+       "                      given_names   family_name  \\\n",
+       "0000-0002-7397-7977   premium car   title loans   \n",
+       "0000-0003-4931-9736   premium car   title loans   \n",
+       "0000-0001-8221-2303   premium car   title loans   \n",
+       "0000-0001-6736-072X  premium car    title loans   \n",
+       "0000-0002-8727-1246   premium car   title loans   \n",
+       "...                           ...           ...   \n",
+       "0000-0002-9640-8136   premium car   title loans   \n",
+       "0000-0002-6926-3752   premium car   title loans   \n",
+       "0000-0002-3655-4713   premium car   title loans   \n",
+       "0000-0002-8724-1020   premium car   title loans   \n",
+       "0000-0002-4601-4569   premium car   title loans   \n",
+       "\n",
+       "                                                             biography  \\\n",
+       "0000-0002-7397-7977  car title loans are a more straightforward way...   \n",
+       "0000-0003-4931-9736  car title loans are a more straightforward way...   \n",
+       "0000-0001-8221-2303  car title loans are a more straightforward way...   \n",
+       "0000-0001-6736-072X  car title loans are a more straightforward way...   \n",
+       "0000-0002-8727-1246  car title loans are a more straightforward way...   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9640-8136  car title loans are a more straightforward way...   \n",
+       "0000-0002-6926-3752  car title loans are a more straightforward way...   \n",
+       "0000-0002-3655-4713  car title loans are a more straightforward way...   \n",
+       "0000-0002-8724-1020  car title loans are a more straightforward way...   \n",
+       "0000-0002-4601-4569  car title loans are a more straightforward way...   \n",
+       "\n",
+       "                                   other_names primary_email  \\\n",
+       "0000-0002-7397-7977  [premium car title loans]           NaN   \n",
+       "0000-0003-4931-9736  [premium car title loans]           NaN   \n",
+       "0000-0001-8221-2303  [premium car title loans]           NaN   \n",
+       "0000-0001-6736-072X                        NaN           NaN   \n",
+       "0000-0002-8727-1246              [loan agency]           NaN   \n",
+       "...                                        ...           ...   \n",
+       "0000-0002-9640-8136  [premium car title loans]           NaN   \n",
+       "0000-0002-6926-3752  [premium car title loans]           NaN   \n",
+       "0000-0002-3655-4713  [premium car title loans]           NaN   \n",
+       "0000-0002-8724-1020  [premium car title loans]           NaN   \n",
+       "0000-0002-4601-4569  [premium car title loans]           NaN   \n",
+       "\n",
+       "                                                              keywords  \\\n",
+       "0000-0002-7397-7977                            [car title loan upland]   \n",
+       "0000-0003-4931-9736                          [car title loan saratoga]   \n",
+       "0000-0001-8221-2303                       [car title loan victorville]   \n",
+       "0000-0001-6736-072X                                                NaN   \n",
+       "0000-0002-8727-1246  [car title loan online, car title loan north o...   \n",
+       "...                                                                ...   \n",
+       "0000-0002-9640-8136                            [car title loan clovis]   \n",
+       "0000-0002-6926-3752                         [car title loan escondido]   \n",
+       "0000-0002-3655-4713                        [car title loan san rafael]   \n",
+       "0000-0002-8724-1020               [car title loan san juan capistrano]   \n",
+       "0000-0002-4601-4569                    [car title loan mount pleasant]   \n",
+       "\n",
+       "                    external_ids education employment  n_works works_source  \\\n",
+       "0000-0002-7397-7977          NaN       NaN        NaN        0          NaN   \n",
+       "0000-0003-4931-9736          NaN       NaN        NaN        0          NaN   \n",
+       "0000-0001-8221-2303          NaN       NaN        NaN        0          NaN   \n",
+       "0000-0001-6736-072X          NaN       NaN        NaN        0          NaN   \n",
+       "0000-0002-8727-1246          NaN       NaN        NaN        0          NaN   \n",
+       "...                          ...       ...        ...      ...          ...   \n",
+       "0000-0002-9640-8136          NaN       NaN        NaN        0          NaN   \n",
+       "0000-0002-6926-3752          NaN       NaN        NaN        0          NaN   \n",
+       "0000-0002-3655-4713          NaN       NaN        NaN        0          NaN   \n",
+       "0000-0002-8724-1020          NaN       NaN        NaN        0          NaN   \n",
+       "0000-0002-4601-4569          NaN       NaN        NaN        0          NaN   \n",
+       "\n",
+       "                              activation_date          last_update_date  \\\n",
+       "0000-0002-7397-7977  2020-11-06t06:10:20.070z  2020-11-06t06:24:28.005z   \n",
+       "0000-0003-4931-9736  2020-11-13t01:04:19.859z  2020-11-13t01:15:12.546z   \n",
+       "0000-0001-8221-2303  2020-11-05t00:38:21.096z  2020-11-05t00:40:40.091z   \n",
+       "0000-0001-6736-072X  2020-12-08t05:38:30.786z  2020-12-08t05:40:03.786z   \n",
+       "0000-0002-8727-1246  2020-12-10t08:54:56.127z  2020-12-10t08:57:15.791z   \n",
+       "...                                       ...                       ...   \n",
+       "0000-0002-9640-8136  2020-10-22t06:11:02.945z  2020-10-22t06:17:09.111z   \n",
+       "0000-0002-6926-3752  2020-12-03t02:00:33.684z  2020-12-03t02:02:07.054z   \n",
+       "0000-0002-3655-4713  2020-11-18t00:39:17.492z  2020-11-18t00:52:19.024z   \n",
+       "0000-0002-8724-1020  2020-11-19t00:31:54.080z  2020-11-19t00:34:08.721z   \n",
+       "0000-0002-4601-4569  2020-10-16t00:32:26.207z  2020-10-16t00:37:42.646z   \n",
+       "\n",
+       "                     n_doi  n_arxiv  n_pmc  n_other_pids  label  \\\n",
+       "0000-0002-7397-7977      0        0      0             0      0   \n",
+       "0000-0003-4931-9736      0        0      0             0      0   \n",
+       "0000-0001-8221-2303      0        0      0             0      0   \n",
+       "0000-0001-6736-072X      0        0      0             0      0   \n",
+       "0000-0002-8727-1246      0        0      0             0      0   \n",
+       "...                    ...      ...    ...           ...    ...   \n",
+       "0000-0002-9640-8136      0        0      0             0      0   \n",
+       "0000-0002-6926-3752      0        0      0             0      0   \n",
+       "0000-0002-3655-4713      0        0      0             0      0   \n",
+       "0000-0002-8724-1020      0        0      0             0      0   \n",
+       "0000-0002-4601-4569      0        0      0             0      0   \n",
+       "\n",
+       "                    primary_email_domain other_email_domains  \\\n",
+       "0000-0002-7397-7977                  NaN                 NaN   \n",
+       "0000-0003-4931-9736                  NaN                 NaN   \n",
+       "0000-0001-8221-2303                  NaN                 NaN   \n",
+       "0000-0001-6736-072X                  NaN                 NaN   \n",
+       "0000-0002-8727-1246                  NaN                 NaN   \n",
+       "...                                  ...                 ...   \n",
+       "0000-0002-9640-8136                  NaN                 NaN   \n",
+       "0000-0002-6926-3752                  NaN                 NaN   \n",
+       "0000-0002-3655-4713                  NaN                 NaN   \n",
+       "0000-0002-8724-1020                  NaN                 NaN   \n",
+       "0000-0002-4601-4569                  NaN                 NaN   \n",
+       "\n",
+       "                                    url_domains  n_emails  n_urls  n_ids  \\\n",
+       "0000-0002-7397-7977  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "0000-0003-4931-9736  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "0000-0001-8221-2303  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "0000-0001-6736-072X  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "0000-0002-8727-1246  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "...                                         ...       ...     ...    ...   \n",
+       "0000-0002-9640-8136  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "0000-0002-6926-3752  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "0000-0002-3655-4713  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "0000-0002-8724-1020  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "0000-0002-4601-4569  [premiumcartitleloans.com]       NaN     1.0    NaN   \n",
+       "\n",
+       "                     n_keywords  n_education  n_employment  \n",
+       "0000-0002-7397-7977         1.0          NaN           NaN  \n",
+       "0000-0003-4931-9736         1.0          NaN           NaN  \n",
+       "0000-0001-8221-2303         1.0          NaN           NaN  \n",
+       "0000-0001-6736-072X         NaN          NaN           NaN  \n",
+       "0000-0002-8727-1246         4.0          NaN           NaN  \n",
+       "...                         ...          ...           ...  \n",
+       "0000-0002-9640-8136         1.0          NaN           NaN  \n",
+       "0000-0002-6926-3752         1.0          NaN           NaN  \n",
+       "0000-0002-3655-4713         1.0          NaN           NaN  \n",
+       "0000-0002-8724-1020         1.0          NaN           NaN  \n",
+       "0000-0002-4601-4569         1.0          NaN           NaN  \n",
+       "\n",
+       "[421 rows x 30 columns]"
+      ]
+     },
+     "execution_count": 51,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df[(df.biography.notna()) & (df.biography.str.contains('car title loans are a more straightforward'))]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 52,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def score(bio):\n",
+    "    try:\n",
+    "        return antispam.score(bio)\n",
+    "    except: # if len(bio) < 3 the filter doesn't know how to handle that\n",
+    "        return -1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 53,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df['spam_score'] = df[df.biography.notna()]['biography'].apply(lambda bio: score(bio))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 54,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>biography</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-0505-2734</th>\n",
+       "      <td>1</td>\n",
+       "      <td>j</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-7686-1032</th>\n",
+       "      <td>1</td>\n",
+       "      <td>hi</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-3417-7299</th>\n",
+       "      <td>1</td>\n",
+       "      <td>.....</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-3794-1288</th>\n",
+       "      <td>1</td>\n",
+       "      <td>m.d., ph.d.</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0001-9655-4806</th>\n",
+       "      <td>1</td>\n",
+       "      <td>肿瘤</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-3823-2678</th>\n",
+       "      <td>1</td>\n",
+       "      <td>b.e, m.e. ph.d</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-4041-0840</th>\n",
+       "      <td>1</td>\n",
+       "      <td>/</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-4285-8537</th>\n",
+       "      <td>1</td>\n",
+       "      <td></td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-1545-8773</th>\n",
+       "      <td>1</td>\n",
+       "      <td>hi</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-6302-4224</th>\n",
+       "      <td>1</td>\n",
+       "      <td>.</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>343 rows × 2 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                     orcid       biography\n",
+       "0000-0003-0505-2734      1               j\n",
+       "0000-0001-7686-1032      1              hi\n",
+       "0000-0002-3417-7299      1           .....\n",
+       "0000-0003-3794-1288      1     m.d., ph.d.\n",
+       "0000-0001-9655-4806      1              肿瘤\n",
+       "...                    ...             ...\n",
+       "0000-0003-3823-2678      1  b.e, m.e. ph.d\n",
+       "0000-0003-4041-0840      1               /\n",
+       "0000-0002-4285-8537      1                \n",
+       "0000-0002-1545-8773      1              hi\n",
+       "0000-0002-6302-4224      1               .\n",
+       "\n",
+       "[343 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 54,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df[df.spam_score == -1][['orcid','biography']]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 55,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "df['spam_score'] = df['spam_score'].replace(-1, np.NaN)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 56,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "count    3.483060e+05\n",
+       "mean     6.117792e-01\n",
+       "std      4.472392e-01\n",
+       "min      1.917500e-22\n",
+       "25%      1.969077e-02\n",
+       "50%      9.563239e-01\n",
+       "75%      9.999993e-01\n",
+       "max      1.000000e+00\n",
+       "Name: spam_score, dtype: float64"
+      ]
+     },
+     "execution_count": 56,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df.spam_score.describe()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 57,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
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+       "\n",
+       "    .dataframe thead th {\n",
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+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>biography</th>\n",
+       "      <th>spam_score</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-2638-4108</th>\n",
+       "      <td>investigador de la universidad de oviedo. depa...</td>\n",
+       "      <td>1.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-2862-6139</th>\n",
+       "      <td>formación académica en la temática de manejo d...</td>\n",
+       "      <td>1.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-8873-189X</th>\n",
+       "      <td>doctor en educación, maestro en gerencia de la...</td>\n",
+       "      <td>1.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0003-1291-3782</th>\n",
+       "      <td>possui graduação em psicologia pela pontifícia...</td>\n",
+       "      <td>1.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>0000-0002-2263-6646</th>\n",
+       "      <td>roofing contractors in seattle waroofing contr...</td>\n",
+       "      <td>1.000000</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
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+       "    <tr>\n",
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+       "      <td>0.999999</td>\n",
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+       "  </tbody>\n",
+       "</table>\n",
+       "<p>119552 rows × 2 columns</p>\n",
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+      "text/plain": [
+       "                                                             biography  \\\n",
+       "0000-0002-2638-4108  investigador de la universidad de oviedo. depa...   \n",
+       "0000-0003-2862-6139  formación académica en la temática de manejo d...   \n",
+       "0000-0002-8873-189X  doctor en educación, maestro en gerencia de la...   \n",
+       "0000-0003-1291-3782  possui graduação em psicologia pela pontifícia...   \n",
+       "0000-0002-2263-6646  roofing contractors in seattle waroofing contr...   \n",
+       "...                                                                ...   \n",
+       "0000-0002-2606-3849  jose ignacio peláez sánchez ha sido profesor e...   \n",
+       "0000-0003-0459-4822  mestranda em tecnologia na saúde e foi aluna o...   \n",
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+       "0000-0002-6633-0673  jual obat aborsi di tangerang, obat penggugur ...   \n",
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+       "0000-0002-6633-0673    0.999999  \n",
+       "\n",
+       "[119552 rows x 2 columns]"
+      ]
+     },
+     "execution_count": 57,
+     "metadata": {},
+     "output_type": "execute_result"
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{\"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\"}}, \"title\": {\"x\": 0.05}, \"xaxis\": {\"automargin\": true, \"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\", \"title\": {\"standoff\": 15}, \"zerolinecolor\": \"white\", \"zerolinewidth\": 2}, \"yaxis\": {\"automargin\": true, \"gridcolor\": \"white\", \"linecolor\": \"white\", \"ticks\": \"\", \"title\": {\"standoff\": 15}, \"zerolinecolor\": \"white\", \"zerolinewidth\": 2}}}, \"xaxis\": {\"anchor\": \"y\", \"constrain\": \"domain\", \"domain\": [0.0, 1.0], \"scaleanchor\": \"y\"}, \"yaxis\": {\"anchor\": \"x\", \"autorange\": \"reversed\", \"constrain\": \"domain\", \"domain\": [0.0, 1.0]}},                        {\"responsive\": true}                    ).then(function(){\n",
+       "                            \n",
+       "var gd = document.getElementById('454c5049-0a2f-47b4-b3f1-190a4446a91b');\n",
+       "var x = new MutationObserver(function (mutations, observer) {{\n",
+       "        var display = window.getComputedStyle(gd).display;\n",
+       "        if (!display || display === 'none') {{\n",
+       "            console.log([gd, 'removed!']);\n",
+       "            Plotly.purge(gd);\n",
+       "            observer.disconnect();\n",
+       "        }}\n",
+       "}});\n",
+       "\n",
+       "// Listen for the removal of the full notebook cells\n",
+       "var notebookContainer = gd.closest('#notebook-container');\n",
+       "if (notebookContainer) {{\n",
+       "    x.observe(notebookContainer, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "// Listen for the clearing of the current output cell\n",
+       "var outputEl = gd.closest('.output');\n",
+       "if (outputEl) {{\n",
+       "    x.observe(outputEl, {childList: true});\n",
+       "}}\n",
+       "\n",
+       "                        })                };                });            </script>        </div>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "fig = px.imshow(df.corr())\n",
     "fig.show()"
    ]
   },
@@ -1359,11 +16344,90 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 59,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>orcid</th>\n",
+       "      <th>verified_email</th>\n",
+       "      <th>verified_primary_email</th>\n",
+       "      <th>given_names</th>\n",
+       "      <th>family_name</th>\n",
+       "      <th>biography</th>\n",
+       "      <th>other_names</th>\n",
+       "      <th>primary_email</th>\n",
+       "      <th>keywords</th>\n",
+       "      <th>external_ids</th>\n",
+       "      <th>education</th>\n",
+       "      <th>employment</th>\n",
+       "      <th>n_works</th>\n",
+       "      <th>works_source</th>\n",
+       "      <th>activation_date</th>\n",
+       "      <th>last_update_date</th>\n",
+       "      <th>n_doi</th>\n",
+       "      <th>n_arxiv</th>\n",
+       "      <th>n_pmc</th>\n",
+       "      <th>n_other_pids</th>\n",
+       "      <th>label</th>\n",
+       "      <th>primary_email_domain</th>\n",
+       "      <th>other_email_domains</th>\n",
+       "      <th>url_domains</th>\n",
+       "      <th>n_emails</th>\n",
+       "      <th>n_urls</th>\n",
+       "      <th>n_ids</th>\n",
+       "      <th>n_keywords</th>\n",
+       "      <th>n_education</th>\n",
+       "      <th>n_employment</th>\n",
+       "      <th>spam_score</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "Empty DataFrame\n",
+       "Columns: [orcid, verified_email, verified_primary_email, given_names, family_name, biography, other_names, primary_email, keywords, external_ids, education, employment, n_works, works_source, activation_date, last_update_date, n_doi, n_arxiv, n_pmc, n_other_pids, label, primary_email_domain, other_email_domains, url_domains, n_emails, n_urls, n_ids, n_keywords, n_education, n_employment, spam_score]\n",
+       "Index: []"
+      ]
+     },
+     "execution_count": 59,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df[df.label == 1]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 60,
    "metadata": {},
    "outputs": [],
    "source": [
-    "df[df.label == 1]"
+    "# (df.n_works > 0) & (df.n_ids > 1)"
    ]
   },
   {
diff --git a/src/data/make_dataset.py b/src/data/make_dataset.py
index 297e4a1..3ba2f8e 100644
--- a/src/data/make_dataset.py
+++ b/src/data/make_dataset.py
@@ -6,6 +6,31 @@ from dotenv import find_dotenv, load_dotenv
 import pandas as pd
 import ast
 import os
+import tldextract
+
+def fix_keywords(lst):
+        fixed = set()
+        for k in lst:
+            tokens = set(k.split(','))
+            for t in tokens:
+                fixed.add(str.strip(t))
+        fixed.discard('')
+        return list(fixed)
+    
+def extract_email_domains(lst):
+    res = []
+    for email in lst:
+        res.append(email.split('@')[1])
+    return res
+
+def extract_url_domains(lst):
+    domains = []
+    for e in lst:
+        # e[0] is a string describing the url
+        # e[1] is the url
+        domain = tldextract.extract(e[1])
+        domains.append(domain.registered_domain)
+    return domains
 
 @click.command()
 @click.argument('input_filepath', type=click.Path(exists=True))
@@ -17,8 +42,9 @@ def main(input_filepath, output_filepath):
     logger = logging.getLogger(__name__)
     logger.info('Making final data set from raw data')
     logger.info('Loading the zipped dataset')
-    df = pd.read_csv(os.path.join(input_filepath, 'initial_info_whole_20210322.tsv.gz'), compression='gzip', sep='\t', header=0,
-                         names=['orcid', 'claimed','verified_email', 'verified_primary_email', 
+    df = pd.read_csv(os.path.join(input_filepath, 'data.gz'), compression='gzip', 
+                         sep='\t', header=None,
+                         names=['orcid','verified_email', 'verified_primary_email', 
                                   'given_names', 'family_name', 'biography', 'other_names', 'urls', 
                                   'primary_email', 'other_emails', 'keywords', 'external_ids', 'education', 
                                   'employment', 'n_works', 'works_source', 'activation_date', 'last_update_date',
@@ -54,6 +80,25 @@ def main(input_filepath, output_filepath):
     df['label'] = df.orcid.isin(openaire_orcid['orcid'])
     df['label'] = df['label'].astype(int)
     
+    logger.info('Fixing keywords')
+    df['keywords'] = df[df.keywords.notna()]['keywords'].apply(lambda x: fix_keywords(x))
+    
+    logger.info('Extracting domains from URLs and emails')
+    df['primary_email_domain'] = df[df.primary_email.notna()]['primary_email'].apply(lambda x: x.split('@')[1])
+    df['other_email_domains'] = df[df.other_emails.notna()]['other_emails'].apply(lambda x: extract_email_domains(x))
+    df['url_domains'] = df[df.urls.notna()]['urls'].apply(lambda x: extract_url_domains(x))
+    
+    logger.info('Creating simple numeric columns')
+    df['n_emails'] = df.other_emails.str.len()
+    df['n_urls'] = df.url_domains.str.len()
+    df['n_ids'] = df.external_ids.str.len()
+    df['n_keywords'] = df.keywords.str.len()
+    df['n_education'] = df.education.str.len()
+    df['n_employment'] = df.employment.str.len()
+        
+    logger.info('Dropping useless columns')
+    df = df.drop(['urls', 'other_emails'], axis=1)
+    
     logger.info('Serializing the dataset in ./data/processed')
     n = 1000000
     chunks = [df[i:i+n] for i in range(0, df.shape[0], n)]