Could anybody explain, what is the anticipated relation of the DBPedia ontology to the actual content of the public DBPedia SPARQL endpoint?
The first naive comparison of the two yields so many differences that it may even appear hard to say that they describe the same data.
Would my guess be correct that the classes that are in the ontology and are not rdf:type of any instance within the public endpoint should be present somewhere within the DBPedia data not included into the current version of the public endpoint (e.g. the classes dbo:Algorithm, dbo:Bishop, dbo:FileSystem, and many many others)?
Or - there is some other explanation -?
Re the other direction, it would be easier to accept that the SPARQL endpoint can be more technical and include a much wider scope of classes and properties.
My intention is to produce a visual query environment over DBPedia on the basis of ViziQuer tool. I could make some ad hoc choices re the supported classes and properties, however, I would prefer to understand, what is going on.
Thanks in advance for your comments!
Leading Researcher, Institute of Mathematics and Computer Science, University of Latvia