Markus Krötzsch wrote: > Also, SMW can *export* your queries now: click on the "RDF feed" link on a > concept > page to see the machine-readable version of the query. The OWL format that we > use for export can nicely capture many SMW queries, and OWL tools can > actually read these descriptions and reuse them externally. So SMW now cannot > just export your wiki data, but also conceptual information about your topic.
The SMW query is: [[Category:Event]] [[Start date::> Jan 1 2008]] [[Start date::< Dec 31 2008]] Here is the OWL class description of the query. I don't see how it limits the range of dates. Does OWL have support for class restrictions on greater than/less than on literals? <owl:Class rdf:about="http://semanticweb.org/id/Concept-3ASemantic_Web_events_2008";> <rdfs:label>Semantic Web events 2008</rdfs:label> <swivt:page rdf:resource="http://semanticweb.org/wiki/Concept:Semantic_Web_events_2008"/> <rdfs:isDefinedBy rdf:resource="http://semanticweb.org/wiki/Special:ExportRDF/Concept:Semantic_Web_events_2008"/> <rdfs:subClassOf> <owl:Class> <owl:intersectionOf rdf:parseType="Collection"> <owl:Class rdf:about="http://semanticweb.org/id/Category-3AEvent"/> <owl:Restriction> <owl:onProperty rdf:resource="http://semanticweb.org/id/Property-3AStart_date"/> <owl:someValuesFrom rdf:resource="http://www.w3.org/2000/01/rdf-schema#Literal"/> </owl:Restriction> <owl:Restriction> <owl:onProperty rdf:resource="http://semanticweb.org/id/Property-3AStart_date"/> <owl:someValuesFrom rdf:resource="http://www.w3.org/2000/01/rdf-schema#Literal"/> </owl:Restriction> </owl:intersectionOf> </owl:Class> </rdfs:subClassOf> </owl:Class> ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Semediawiki-devel mailing list Semediawiki-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/semediawiki-devel
