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 • Cardinality: ONE
Represents the source node in the relation.
"source": {
"id": "20|openorgs____::1cb75a3ad756e4c83e455e3e7347643b",
"type": "organization"
}
target
Type: Node • Cardinality: ONE
Represents the target node in the relation.
"target": {
"id": "10|doajarticles::022409068174087a003647ff46070f7f",
"type": "datasource"
}
reltype
Type: RelType • Cardinality: ONE
Represent the semantics of the relation between two nodes of the graph.
"reltype": {
"name": "provides",
"type": "provision"
}
provenance
Type: Provenance • Cardinality: ONE
Indicates the process that produced (or provided) the information.
"provenance": {
"provenance": "Harvested",
"trust":"0.900"
}
validated
Type: Boolean • Cardinality: ONE
Indicates weather or not the relation was validated.
"validated": true
validationDate
Type: String • Cardinality: ONE
Indicates the validation date of the relation - applies only when the validated flag is set to true.
"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.
"id": "10|doajarticles::022409068174087a003647ff46070f7f"
type
Type: String • Cardinality: ONE
Graph node type.
"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.
"name": "provides"
name
Type: String • Cardinality: ONE
Further specifies the relation semantic, indicating the relation direction, e.g. Cites, isCitedBy.
"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, which provides a description for them.
| # | Source entity type | Target entity type | Relation name / inverse | Provenance |
|---|---|---|---|---|
| 1 | Project | Result | produces / isProducedBy | Harvested, Inferred by OpenAIRE, Linked by user |
| 2 | Project | Organization | hasParticipant / isParticipant | Harvested |
| 3 | Project | Community | IsRelatedTo / IsRelatedTo | Linked by user |
| 4 | Result | Result | IsAmongTopNSimilarDocuments / HasAmongTopNSimilarDocuments | Inferred by OpenAIRE |
| 5 | Result | Result | IsSupplementTo / IsSupplementedBy | Harvested |
| 6 | Result | Result | IsRelatedTo / IsRelatedTo | Harvested, Inferred by OpenAIRE, Linked by user |
| 7 | Result | Result | IsPartOf / HasPart | Harvested |
| 8 | Result | Result | IsDocumentedBy / Documents | Harvested |
| 9 | Result | Result | IsObsoletedBy / Obsoletes | Harvested |
| 10 | Result | Result | IsSourceOf / IsDerivedFrom | Harvested |
| 11 | Result | Result | IsCompiledBy / Compiles | Harvested |
| 12 | Result | Result | IsRequiredBy / Requires | Harvested |
| 13 | Result | Result | IsCitedBy / Cites | Harvested, Inferred by OpenAIRE |
| 14 | Result | Result | IsReferencedBy / References | Harvested |
| 15 | Result | Result | IsReviewedBy / Reviews | Harvested |
| 16 | Result | Result | IsOriginalFormOf / IsVariantFormOf | Harvested |
| 17 | Result | Result | IsVersionOf / HasVersion | Harvested |
| 18 | Result | Result | IsIdenticalTo / IsIdenticalTo | Harvested |
| 19 | Result | Result | IsPreviousVersionOf / IsNewVersionOf | Harvested |
| 20 | Result | Result | IsContinuedBy / Continues | Harvested |
| 21 | Result | Result | IsDescribedBy / Describes | Harvested |
| 22 | Result | Organization | hasAuthorInstitution / isAuthorInstitutionOf | Harvested, Inferred by OpenAIRE |
| 23 | Result | Data source | isHostedBy / hosts | Harvested, Inferred by OpenAIRE |
| 24 | Result | Data source | isProvidedBy / provides | Harvested |
| 25 | Result | Community | IsRelatedTo / IsRelatedTo | Harvested, Inferred by OpenAIRE, Linked by user |
| 26 | Organization | Community | IsRelatedTo / IsRelatedTo | Linked by user |
| 27 | Organization | Organization | IsChildOf / IsParentOf | Linked by user |
| 28 | Data source | Community | IsRelatedTo / IsRelatedTo | Linked by user |
| 29 | Data source | Organization | isProvidedBy / provides | Harvested |