[Pellet-users] Rdf:datatype in pellet

[Bijan Parsia]

On Wednesday, July 30, 2008 9:05am, "Wyrwas, Garrett (Mission Systems)" <Garrett.Wyrwas at ngc.com> said:

> Thank you for the quick response. So can we just not ever specify the
> datatype in the ontology or the RDF. We want to completely go without it
> in all places.

RDF (and thus OWL) requires typing of all literals for them to be instances of a datatype. In some serializations, some types are implicit (e.g., I believe in Turtle 1 == "1"^^xsd:integer).

Plain literals are xsd:strings, but coercion to all other types is not part of the framework, I'm afraid.

Is there a reason not to have it in your file? I mean what exactly is the use situation?

Cheers,
Bijan.

> -----Original Message-----
> From: Kendall Grant Clark [mailto:kendall at clarkparsia.com]
> Sent: Tuesday, July 29, 2008 3:46 PM
> To: Wyrwas, Garrett (Mission Systems)
> Cc: Pellet Users List
> Subject: Re: [Pellet-users] Rdf:datatype in pellet
> 
> 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?

(RDF.)