Perhaps I'm missing something, but when I attempt to load the instancetypes_en file into my system, I'm finding that everything that is typed seems to have a rdfs:type link to
http://dbpedia.org/ontology/Resource My understanding is that this is the base type for the dbpedia ontology, so that everything that has a known type derives from it (it's a bit like "Topic" in Freebase) This isn't what the OWL file shows, however, I don't see any reference to "Resource" in the OWL file, and the OWL file shows that toplevel types derive from owl#Thing, <owl:Class rdf:about="http://dbpedia.org/ontology/Place";> <rdfs:label xml:lang="en">Place</rdfs:label> <rdfs:subClassOf rdf:resource="http://www.w3.org/2002/07/owl#Thing"/> </owl:Class> The visual view of the class hierarchy at http://www4.wiwiss.fu-berlin.de/dbpedia/dev/ontology.htm also shows everything deriving from owl:Thing. It's not a problem for me either way, but my tools definitely complain, since they expect the types to match up with the type hierarchy. Personally I like the idea of a "Resource" type, since there are certain attributes that apply to all dbpedia entries, but I think they'd apply to things typed and untyped. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Dbpedia-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
