164 lines
8.8 KiB
Markdown
164 lines
8.8 KiB
Markdown
---
|
|
sidebar_position: 2
|
|
---
|
|
|
|
# Relationships
|
|
|
|
A relationship in the graph is represented by the following data type, which aims to model a directed edge between two nodes, providing information about the semantic of the relation, its provenance and validation.
|
|
|
|
---
|
|
|
|
## The `Relationship` object
|
|
|
|
### source
|
|
_Type: [Node](#the-node-object) • Cardinality: ONE_
|
|
|
|
Represents the source node in the relation.
|
|
|
|
```json
|
|
"source": {
|
|
"id": "20|openorgs____::1cb75a3ad756e4c83e455e3e7347643b",
|
|
"type": "organization"
|
|
}
|
|
```
|
|
|
|
### target
|
|
_Type: [Node](#the-node-object) • Cardinality: ONE_
|
|
|
|
Represents the target node in the relation.
|
|
|
|
```json
|
|
"target": {
|
|
"id": "10|doajarticles::022409068174087a003647ff46070f7f",
|
|
"type": "datasource"
|
|
}
|
|
```
|
|
|
|
### reltype
|
|
_Type: [RelType](#the-reltype-object) • Cardinality: ONE_
|
|
|
|
Represent the semantics of the relation between two nodes of the graph.
|
|
|
|
```json
|
|
"reltype": {
|
|
"name": "provides",
|
|
"type": "provision"
|
|
}
|
|
```
|
|
### provenance
|
|
_Type: [Provenance](entities/other#provenance-1) • Cardinality: ONE_
|
|
|
|
Indicates the process that produced (or provided) the information.
|
|
|
|
```json
|
|
"provenance": {
|
|
"provenance": "Harvested",
|
|
"trust":"0.900"
|
|
}
|
|
```
|
|
|
|
### validated
|
|
_Type: Boolean • Cardinality: ONE_
|
|
|
|
Indicates weather or not the relation was validated.
|
|
|
|
```json
|
|
"validated": true
|
|
```
|
|
|
|
### validationDate
|
|
_Type: String • Cardinality: ONE_
|
|
|
|
Indicates the validation date of the relation - applies only when the validated flag is set to true.
|
|
|
|
```json
|
|
"validationDate": "2022-09-02"
|
|
```
|
|
|
|
---
|
|
|
|
## The `Node` object
|
|
|
|
The Node data type contains the minimum information needed to identify a graph node, its identifier and entity type.
|
|
|
|
|
|
### id
|
|
_Type: String • Cardinality: ONE_
|
|
|
|
OpenAIRE identifier of the node in the graph.
|
|
|
|
```json
|
|
"id": "10|doajarticles::022409068174087a003647ff46070f7f"
|
|
```
|
|
|
|
### type
|
|
_Type: String • Cardinality: ONE_
|
|
|
|
Graph node type.
|
|
|
|
```json
|
|
"type": "datasource"
|
|
```
|
|
|
|
## The `RelType` object
|
|
|
|
The RelType data type models the semantic of the relationship among two nodes.
|
|
|
|
### type
|
|
_Type: String • Cardinality: ONE_
|
|
|
|
Relation category, e.g. affiliation, citation, see table Relation typologies.
|
|
|
|
```json
|
|
"name": "provides"
|
|
```
|
|
|
|
### name
|
|
_Type: String • Cardinality: ONE_
|
|
|
|
Further specifies the relation semantic, indicating the relation direction, e.g. Cites, isCitedBy.
|
|
|
|
```json
|
|
"type": "provision"
|
|
```
|
|
---
|
|
|
|
## Relationship types
|
|
|
|
The following table lists all the possible relation semantics found in the graph dump.
|
|
|
|
Note: the labels used to specify the semantic of the relationships are (for the large) inherited from the [DataCite metadata kernel](https://schema.datacite.org/meta/kernel-4.4/doc/DataCite-MetadataKernel_v4.4.pdf), which provides a description for them.
|
|
|
|
| # | Source entity type | Target entity type | Relation name / inverse | Provenance |
|
|
|:--:|:--------------------------------------:|:--------------------------------------:|:----------------------------------------------------------:|:-----------------------------------------------:|
|
|
| 1 | [Project](entities/project) | [Result](entities/result) | produces / isProducedBy | Harvested, Inferred by OpenAIRE, Linked by user |
|
|
| 2 | [Project](entities/project) | [Organization](entities/organization) | hasParticipant / isParticipant | Harvested |
|
|
| 3 | [Project](entities/project) | [Community](entities/community) | IsRelatedTo / IsRelatedTo | Linked by user |
|
|
| 4 | [Result](entities/result) | [Result](entities/result) | IsAmongTopNSimilarDocuments / HasAmongTopNSimilarDocuments | Inferred by OpenAIRE |
|
|
| 5 | [Result](entities/result) | [Result](entities/result) | IsSupplementTo / IsSupplementedBy | Harvested |
|
|
| 6 | [Result](entities/result) | [Result](entities/result) | IsRelatedTo / IsRelatedTo | Harvested, Inferred by OpenAIRE, Linked by user |
|
|
| 7 | [Result](entities/result) | [Result](entities/result) | IsPartOf / HasPart | Harvested |
|
|
| 8 | [Result](entities/result) | [Result](entities/result) | IsDocumentedBy / Documents | Harvested |
|
|
| 9 | [Result](entities/result) | [Result](entities/result) | IsObsoletedBy / Obsoletes | Harvested |
|
|
| 10 | [Result](entities/result) | [Result](entities/result) | IsSourceOf / IsDerivedFrom | Harvested |
|
|
| 11 | [Result](entities/result) | [Result](entities/result) | IsCompiledBy / Compiles | Harvested |
|
|
| 12 | [Result](entities/result) | [Result](entities/result) | IsRequiredBy / Requires | Harvested |
|
|
| 13 | [Result](entities/result) | [Result](entities/result) | IsCitedBy / Cites | Harvested, Inferred by OpenAIRE |
|
|
| 14 | [Result](entities/result) | [Result](entities/result) | IsReferencedBy / References | Harvested |
|
|
| 15 | [Result](entities/result) | [Result](entities/result) | IsReviewedBy / Reviews | Harvested |
|
|
| 16 | [Result](entities/result) | [Result](entities/result) | IsOriginalFormOf / IsVariantFormOf | Harvested |
|
|
| 17 | [Result](entities/result) | [Result](entities/result) | IsVersionOf / HasVersion | Harvested |
|
|
| 18 | [Result](entities/result) | [Result](entities/result) | IsIdenticalTo / IsIdenticalTo | Harvested |
|
|
| 19 | [Result](entities/result) | [Result](entities/result) | IsPreviousVersionOf / IsNewVersionOf | Harvested |
|
|
| 20 | [Result](entities/result) | [Result](entities/result) | IsContinuedBy / Continues | Harvested |
|
|
| 21 | [Result](entities/result) | [Result](entities/result) | IsDescribedBy / Describes | Harvested |
|
|
| 22 | [Result](entities/result) | [Organization](entities/organization) | hasAuthorInstitution / isAuthorInstitutionOf | Harvested, Inferred by OpenAIRE |
|
|
| 23 | [Result](entities/result) | [Data source](entities/data-source) | isHostedBy / hosts | Harvested, Inferred by OpenAIRE |
|
|
| 24 | [Result](entities/result) | [Data source](entities/data-source) | isProvidedBy / provides | Harvested |
|
|
| 25 | [Result](entities/result) | [Community](entities/community) | IsRelatedTo / IsRelatedTo | Harvested, Inferred by OpenAIRE, Linked by user |
|
|
| 26 | [Organization](entities/organization) | [Community](entities/community) | IsRelatedTo / IsRelatedTo | Linked by user |
|
|
| 27 | [Organization](entities/organization) | [Organization](entities/organization) | IsChildOf / IsParentOf | Linked by user |
|
|
| 28 | [Data source](entities/data-source) | [Community](entities/community) | IsRelatedTo / IsRelatedTo | Linked by user |
|
|
| 29 | [Data source](entities/data-source) | [Organization](entities/organization) | isProvidedBy / provides | Harvested |
|
|
|