Merge pull request 'Enriching the full-text collection process' (#53) from pdf_aggregation into main
Reviewed-on: #53
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import DocCardList from '@theme/DocCardList';
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# Enrichment by mining
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**OpenAIRE** collects the full-texts of the publications, in order to apply TDM (Text and Data Mining) algorithms on them and enrich the Graph with inference links.
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The collection of the full-texts is handled by the internal **PDF Aggregation Service**. This service uses the publications' urls, from the OpenAIRE Graph and state-of-the-art algorithms, to crawl the web and try to locate and download the full-texts of the open access publications, while focusing on the most recent ones. It respects the servers of the repositories and publishers and avoids overloading them.
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The service is orchestrating a distributed execution system, on the cloud, with multiple microservices running in parallel, in order to efficiently process and download a large number of publications. The microservices store the generated report records for the publications, in a database, and the full-texts in an S3 Object Store.
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On the publication-page level, it applies text-mining algorithms to analyze the structure of the page, extract the full-text url and download the file. Additionally, it tracks various performance indicators to optimize the crawling speed, during execution.
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The PDF Aggregation Service is also capable of bulk-importing full-texts from compatible data sources, which increases the collection speed of full-texts.
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The different Text and Data Mining (TDM) algorithms used in the graph-enrichment process are grouped in the following categories.
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<DocCardList></DocCardList>
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@ -108,10 +108,7 @@ const sidebars = {
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{
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type: 'category',
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label: "Enrichment by mining",
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link: {
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type: 'generated-index',
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description: 'The OpenAIRE Graph is enriched using the different Text and Data Mining (TDM) algorithms that are grouped in the following categories.'
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},
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link: {type: 'doc', id: 'graph-production-workflow/enrichment-by-mining/enrichment-by-mining'},
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items: [
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{ type: 'doc', id: 'graph-production-workflow/enrichment-by-mining/affiliation_matching' },
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{ type: 'doc', id: 'graph-production-workflow/enrichment-by-mining/citation_matching' },
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