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[http://dbpedia.org/ DBpedia] is a community effort to extract structured information from Wikipedia and to make this information available on the Web. DBpedia allows you to ask sophisticated queries against Wikipedia, and to link other data sets on the Web to Wikipedia data. We hope this will make it easier for the amazing amount of information in Wikipedia to be used in new and interesting ways, and that it might inspire new mechanisms for navigating, linking and improving the encyclopaedia itself. | [http://dbpedia.org/ DBpedia] is a community effort to extract structured information from Wikipedia and to make this information available on the Web. DBpedia allows you to ask sophisticated queries against Wikipedia, and to link other data sets on the Web to Wikipedia data. We hope this will make it easier for the amazing amount of information in Wikipedia to be used in new and interesting ways, and that it might inspire new mechanisms for navigating, linking and improving the encyclopaedia itself. | ||
The type of Wikipedia content that is most valuable for the DBpedia extraction are infoboxes and tables. Infoboxes display an article's most relevant facts as a table of attribute-value pairs on the top right-hand side of the Wikipedia page. By mapping Wikipedia templates and tables to the DBpedia ontology, a basis is established to improve the quality of the infobox extraction and to permit table extraction. | |||
We specified a suitable mapping language based on requirements deducted from existing Wikipedia infobox and table usage. The mapping language makes use of MediaWiki templates that define DBpedia ontology classes and properties as well as template/table to ontology mappings. <!-- Using this language, the ontology schema and the mappings can be defined and maintained in this MediaWiki instance. --> | |||
The DBpedia extraction framework parses and validates the templates defined in this MediaWiki instance and extracts the Wikipedia content according to them. | |||
* [http://mappings.dbpedia.org/index.php?title=Special%3AAllPages&from=&to=&namespace=102 Mappings] | * [http://mappings.dbpedia.org/index.php?title=Special%3AAllPages&from=&to=&namespace=102 Mappings] | ||
Revision as of 12:31, 8 March 2010
DBpedia is a community effort to extract structured information from Wikipedia and to make this information available on the Web. DBpedia allows you to ask sophisticated queries against Wikipedia, and to link other data sets on the Web to Wikipedia data. We hope this will make it easier for the amazing amount of information in Wikipedia to be used in new and interesting ways, and that it might inspire new mechanisms for navigating, linking and improving the encyclopaedia itself.
The type of Wikipedia content that is most valuable for the DBpedia extraction are infoboxes and tables. Infoboxes display an article's most relevant facts as a table of attribute-value pairs on the top right-hand side of the Wikipedia page. By mapping Wikipedia templates and tables to the DBpedia ontology, a basis is established to improve the quality of the infobox extraction and to permit table extraction. We specified a suitable mapping language based on requirements deducted from existing Wikipedia infobox and table usage. The mapping language makes use of MediaWiki templates that define DBpedia ontology classes and properties as well as template/table to ontology mappings. The DBpedia extraction framework parses and validates the templates defined in this MediaWiki instance and extracts the Wikipedia content according to them.
This wiki is read-only. If you like to edit the mappings or ontology schema, please register and the DBpedia team will add you to the editors list.
Tutorials
- How to edit the ontology schema
- How to write a mapping
The full documentation on writing mappings can be found via the DBpedia SVN Repository.
