Wikidata:SPARQL query service/WDQS graph split/Rules

This page describes the criteria used by WDQS to determine in what subgraph a given entity belongs to.

Definition

An entity is part of the scholarly graph if it declares a non-deprecated statement instance of (P31) with a value defined in #Scholarly Articles.
An entity is part of the main graph if it is not considered a scholarly article.

Examples

If an entity declares a single instance of (P31) with scholarly article (Q13442814) it is part of the scholarly graph
If all instance of (P31) statements declared by an entity are not part of #Scholarly Articles it is part of the main graph
If an entity declares multiple instance of (P31) with one of them part of #Scholarly Articles it is part of the scholarly graph
If an entity does not declare any instance of (P31) it is part of the main graph
A Wikibase lexeme (Q51885771) is part of the main graph
A Wikidata property (Q18616576) is part of the main graph

Known Issues

Entities having multiple instance of (P31) defined may pose some challenges^[1]. Such cases might be considered as data quality issues where the solution should be to disambiguate this entity by creating a separate entity.

Changes to the rules

The rules being defined in the WDQS software if a change is required it must be requested and discussed via Wikidata:Report_a_technical_problem/WDQS_and_Search.

Scholarly Articles

Notes

↑ clinical trials

[1] trials

[1]