Self descriptiveness of RDF data
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Self descriptiveness of RDF data

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Self descriptiveness of RDF data Self descriptiveness of RDF data Presentation Transcript

  • Self-Descriptiveness of Ontologies Fariz Darari
  • A Good Ontology Must Be Self-Descriptive!When someone uses a term from the ontology, she must be able to find out the real meaning of the term by following/dereferencing its URI.
  • Example: <http://purl.org/dc/terms/license><http://example.org/thisDocument> <http://example.org/cc-by> Icons by: David Vignoni - http://www.icon-king.com/ Yingjunjiu - http://yingjunjiu.deviantart.com
  • The example showed that this document’s license is CC-BY.The example uses the term license from the Dublin Core ontology, meaning:“A legal document giving official permission to do something with the resource.”
  • Oh yeah?For sure, because when I dereferenced the URI: http://purl.org/dc/terms/licenseI got exactly this description: PS: Yes, DC ontology is a good one :)
  • OK, I believe you now! Icon: VistaICO.com - http://www.vistaico.com
  • What about the other ontologies?• FOAF• OWL• dbpprop (DBpedia)• geo• BIBO (Books)• VoID (Vocabulary of Interlinked Datasets)
  • FOAFExample term: http://xmlns.com/foaf/0.1/knowsDereference result:
  • OWLExample term: http://www.w3.org/2002/07/owl#equivalentClassDereference result:
  • dbppropExample term: http://dbpedia.org/property/countryDereference result:
  • geoExample term: http://www.w3.org/2003/01/geo/wgs84_pos#latitudeDereference result:
  • BIBOExample term:http://purl.org/ontology/bibo/chapterDereference result:
  • VoIDExample term: http://vocab.deri.ie/void#DatasetDereference result: