[Pellet-users] Rdf:datatype in pellet

[Kendall Grant Clark]

Excerpts from Wyrwas, Garrett (Mission Systems)'s message of Tue Jul 29 10:26:39 -0400 2008:
> Is it possible to use the Pellet reasoner and not specify rdf:datatype
> in the ontology and in the data? Is this a limitation of Pellet or RDF?

Presumably you mean you want Pellet to infer (really, coerce or cast) an
untyped literal to a datatype based on the range of a property?

That's not an inference licensed by OWL, and Pellet doesn't do that. It's
not a limitation of Pellet or RDF, it's just not the way either works.

If you don't control the data, you can preprocess before handing to Pellet by
typing the untyped literals. If you do control the data, is there any downside
to typing the data explicitly?

In general, you will get more help here by giving a fuller description of the
problem, including code and data or ontologies.

Cheers,
Kendall Clark