🗃️Wikidata

NEW

A free, collaboratively edited knowledge base for structured data across Wikimedia projects, offering APIs and a SPARQL query service.

DESCRIPTION

Wikidata stores structured statements about entities, maintained by a global community using Wikibase software. It powers infoboxes on Wikipedia and supports machine-readable data for reuse. The Wikidata Query Service enables complex SPARQL queries over linked facts and references. Data scientists leverage Wikidata for entity resolution, enrichment, and multilingual knowledge graphs. Wikidata emphasizes provenance, qualifiers, and references, making it suitable for high-quality data curation and analytics.

ALTERNATIVE DEFINITIONS

Wikidata

Wikidata is a free and open knowledge base that can be read and edited by humans and machines.

Stresses openness and dual human-machine editability.

Source

Wikidata

Wikidata acts as a common source of structured data that can be used by Wikimedia projects and beyond.

Highlights its role as a common structured source.

Source

Wikibase

Wikibase is a software suite for managing and sharing structured data, powering Wikidata.

Focuses on the underlying platform enabling Wikidata.

Source

RELATED TERMS

Wikibase Linked Open Data SPARQL RDF Knowledge Representation Wikipedia Knowledge Graph Schema.org

COMPETING TERMS

DBpedia YAGO Freebase

KNOWLEDGE AREAS

Semantic & Knowledge Modeling Data Integration & Interoperability Data Products Data Science Data Management

TARGET AUDIENCE

Data Scientist AI Engineer Data Engineer Data Architect Information Analyst Data Steward Data Management Consultant

EXTERNAL SOURCES

• Wikipedia - Wikidata
• Wikidata Query Service - Official SPARQL query endpoint
• Wikidata - SPARQL service documentation
• MediaWiki - Wikibase platform overview

TOP QUESTIONS

What makes Wikidata unique among knowledge bases?

Its community curation, rich qualifiers and references, multilingual coverage, and integration with Wikimedia projects provide high-quality, machine-readable data.

Category: Distinctiveness

How do I use the Wikidata Query Service?

Write SPARQL queries at query.wikidata.org. The service offers examples, autocomplete, and visualizations for results.

Category: HowTo

How does Wikidata relate to DBpedia?

Wikidata is natively structured and editable; DBpedia extracts from Wikipedia. Many projects combine both to maximize coverage and quality.

Category: Comparison

What risks exist when using Wikidata?

Vandalism, incomplete sourcing, and evolving schema can affect data quality. Use references and constraints, and monitor changes.

Category: Risk

How is Wikidata governed?

Community processes, policies, and bots manage edits and constraints. The Wikimedia Foundation supports infrastructure and software.

Category: Management

Can Wikidata support enterprise knowledge graphs?

Yes. Use Wikidata as a backbone for identifiers and facts, with local augmentation and quality controls for enterprise needs.

Category: Usage

How do I contribute to Wikidata?

Create or edit items, add statements, qualifiers, and references. Follow project policies and use tools like QuickStatements.

Category: Contribution

Is Wikidata suitable for multilingual applications?

Absolutely. Labels, descriptions, and aliases are maintained across languages, facilitating global applications.

Category: Scope

What is the biggest misunderstanding about Wikidata?

That it’s only for Wikipedia; it’s a general-purpose knowledge base used widely beyond Wikimedia.

Category: Misunderstanding