How do you use wikidata query service?
How do you use wikidata query service?
In the query.wikidata.org query editor, you can press Ctrl + Space (or Alt + Enter or Ctrl + Alt + Enter ) at any point in the query and get suggestions for code that might be appropriate; select the right suggestion with the up / down arrow keys, and press Enter to select it.
What is wikidata used for?
Wikidata is a collaboratively edited multilingual knowledge graph hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia, and anyone else, can use under the CC0 public domain license.
What is the difference between Wikidata and Wikipedia?
The content of Wikidata is available under a free license, exported using standard formats, and can be interlinked to other open data sets on the linked data web. Wikipedia is the open source encyclopedia within the MediaWiki universe. A page in Wikipedia is an article to which Wikidata can link.
How many triples are in Wikidata?
Freebase has types and properties (see question above). Wikidata has 58 Million statements on 13 Million items. Freebase numbers 2.9 Billion triples on 47 Million topics.
How is Wikidata different from Wikipedia?
Wikidata is a community-driven knowledge graph, strongly linked to Wikipedia. Our findings show that while only a small number of sources is directly reused across Wikidata and Wikipedia, references of- ten point to the same domain. Furthermore, Wikidata appears to use less Anglo-American-centred sources.
Is Wikidata free?
Wikidata’s own description says: “Wikidata is a free and open knowledge base that can be read and edited by both humans and machines.” Wikidata is Wikipedia’s database with close to 50 Million data items.
Is Wikidata an ontology?
Wikidata as a large-scale semantic framework. In October 2012, Wikidata (www.wikidata.org) was created as an open, free, easily editable, ontological and collaborative semantic MediaWiki-based2 knowledge-base to support Wikipedia [71], [69].
Is wikidata an ontology?
What is Wikidata and how do I use it?
Wikidata is a collaboratively edited knowledge base. It is a source of open data that you may want to use in your projects. Wikidata offers a query service for integrations. The query service can be accessed by navigating to query.wikidata.org If we go there, we’ll see the following screen:
How do I find a property’s name on Wikidata?
On Wikidata, items and properties are not identified by human-readable names like “father” (property) or “Bach” (item). (For good reason: “Johann Sebastian Bach” is also the name of a German painter, and “Bach” might also refer to the surname, the French commune, the Mercury crater, etc.)
What is Wikidata / SPARQL / wdqs?
If you have never heard of Wikidata, SPARQL, or WDQS before, here’s a short explanation of those terms: Wikidata is a knowledge database. It contains millions of statements, such as “the capital of Canada is Ottawa”, or “the Mona Lisa is painted in oil paint on poplar wood”, or “gold has a melting point of 1,064.18 degrees Celsius”.
