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rdf [2018/08/20 20:57]
christian [Triple store]
rdf [2018/08/20 21:02] (current)
christian [Triple store]
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 === Schemas and inferencing === === Schemas and inferencing ===
  
-Schemas (or Vocabularies or ontologies) for RDF can be easily (?) defined by anyone. A schema itself is defined in RDF. Commonly used (and sometimes mixed) are RDFS (RDF Schema) and OWL (Web Ontology Language). Besides concepts like ''​Class''​ and ''​Property'',​ predicates and value restrictions,​ an ontology also defines properties for relationships. For example you can define that the relation ''​married''​ between two persons is symetrical; or that the ''​subclass''​ relationship is transitive.+Schemas (or Vocabularies or ontologies) for RDF can be easily (?) defined by anyone. A schema itself is defined in RDF. Commonly used (and sometimes mixed) are [[https://​www.w3.org/​TR/​rdf-schema/​|RDFS]] (RDF Schema) and [[https://​www.w3.org/​2001/​sw/​wiki/​OWL|OWL]] ​(Web Ontology Language). Besides concepts like ''​Class''​ and ''​Property'',​ predicates and value restrictions,​ an ontology also defines properties for relationships. For example you can define that the relation ''​married''​ between two persons is symetrical; or that the ''​subclass''​ relationship is transitive.
  
 With this, only basic facts have to be entered into a triple store. Many more facts can get deducted / inferenced. It would be an interesting project to build such an inferencer. I wonder if Gemstone would make a good triplestore. With this, only basic facts have to be entered into a triple store. Many more facts can get deducted / inferenced. It would be an interesting project to build such an inferencer. I wonder if Gemstone would make a good triplestore.
rdf.txt ยท Last modified: 2018/08/20 21:02 by christian