DBpedia

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DBpedia

DBpediaLogo.svg
Basic data

developer DBpedia Association
Publishing year January 10, 2007
Current  version 2016-10
( July 4, 2017 )
programming language Scala , Java
License Creative Commons CC-BY-SA and GNU Free Documentation License
wiki.dbpedia.org
DBpedia in the Linking Open Data project in September 2007
DBpedia in the Linking Open Data Cloud 2014

DBpedia is a collaborative project transforming Wikipedia articles according to the concepts of Linked Open Data for the Semantic Web . DBpedia was launched in 2007 by the developers Sören Auer , Jens Lehmann , Georgi Kobilarov Richard Cyganiak and Zachary Ives from the University of Leipzig , Christian Bizer from the University of Mannheim , the Hasso Plattner Institute and OpenLink Software . The DBpedia developers regularly extract structured information from Wikipedia and make it accessible as a web application , as a database dump , and as a SPARQL endpoint. DBpedia thus enables the Wikipedia database to be linked to other information systems in a standardized yet flexible manner using various mechanisms.

Since 2014, DBpedia has been supported by the DBpedia Association at the Institute for Applied Computer Science e. V. (InfAI) supports and manages.

background

Wikipedia articles mostly consist of normal running text , but on the other hand also contain structured information, for example info boxes, tables, categories, geographic coordinates and web links. This information can be extracted and used as a database for advanced questions. In September 2011, DBpedia contained 3.64 million data records (things) with more than half a billion individual data (facts). The version published in September 2014 contains 38.3 million data records across all language versions, of which 4.58 million data records are in the English version. The 2014 version of DBpedia contains a total of around 3 billion individual pieces of data.

The Resource Description Framework (RDF) is used as the standard for the data . English, German, French, Spanish, Italian, Portuguese, Polish, Swedish, Dutch, Japanese, Chinese, Russian, Finnish and Norwegian Wikipedia were used as sources. The data sets are available under the GNU license for free documentation and the Creative Commons Attribution ShareAlike 3.0 license and are linked to other free data collections ( open data ) by the RDF standard. These are for example Freebase , Open Cyc , UMBEL , GeoNames , MusicBrainz , CIA World Factbook , the Linked Open Data project of the New York Times , Digital Bibliography & Library Project , Project Gutenberg , Jamendo , Eurostat and the US Census .

In addition to Wikipedia itself , the Wikimedia Foundation has been running the Wikidata project since 2012 , in which individual facts are managed directly, from which much of the structured data from Wikipedia is to be automatically fed. In the future, it is planned that DBpedia will also increasingly use Wikidata.

See also

literature

Web links

Individual evidence

  1. ↑ https://link.springer.com/chapter/10.1007/978-3-540-76298-0_52
  2. ^ DBpedia Association
  3. ↑ http://wiki.dbpedia.org/Datasets
  4. ↑ DBpedia Version 2014 released ( Memento from November 20, 2014 in the Internet Archive )
  5. ↑ http://www.umbel.org/
  6. ↑ Jens Lehmann u. a .: DBpedia - A Large-scale, Multilingual Knowledge Base Extracted from Wikipedia , Semantic Web, Volume 6, Number 2, 2015, 167-195, IOS Press