RE: Examples of OWL used for datatype inferencing?

FYI, Looks like the rdf examples are broken in the second doc you
referenced. I believe e.g:

	<owlr:argument1 rdf:about="#_y" />

should be:

	<owlr:argument1 rdf:resource="#_y" />

Also, IMHO, might be a good idea to follow usual conventions wrt
capitalization of class names - e.g. use <owlr:ClassAtom> instead of
<owlr:classAtom>.

It's nice to see some movement on the rules front.

regards,

Geoff Chappell

> -----Original Message-----
> From: www-rdf-logic-request@w3.org
[mailto:www-rdf-logic-request@w3.org]
> On Behalf Of Ian Horrocks
> Sent: Sunday, November 02, 2003 5:44 AM
> To: Graham Klyne
> Cc: www-rdf-logic@w3.org
> Subject: Re: Examples of OWL used for datatype inferencing?
> 
> 
> OWL's datatype support is currently fairly rudimentry and does not
> include any means of expressing the kinds of knowledge you
> describe. One way to do so, while still maintaining decidability (for
> OWL DL at least) would be to extend the language with n-ary datatype
> predicates (see, e.g., [1]). Another way would be to include
> arithmetic built-ins in an expressive extension such as horn rules
> (see, e.g., [2]), but this would almost certainly make the language
> undecidable.
> 
> Ian
> 
> [1]
>
http://www.cs.man.ac.uk/~horrocks/Publications/download/2003/PaHo03a.pdf
> [2] http://www.cs.man.ac.uk/~horrocks/DAML/Rules/
> 
>

Received on Sunday, 2 November 2003 09:03:23 UTC