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Re: How to mix SKOS and OWL? And Protege bug

From: Mark van Assem <mark@few.vu.nl>
Date: Wed, 17 May 2006 09:47:20 +0300
Message-ID: <446AC6F8.5000709@few.vu.nl>
To: "John M. Linebarger" <jmlineb@comcast.net>
CC: public-esw-thes@w3.org

Hi John,

In that respect I can recommend the Triple20 tool [1] by SWI-Prolog's 
Jan Wielemaker.

It is not as sleek-looking as the other tools (it requires a little more 
effort than the other tools to understand the interface), but it's a 
fully functional editor.

It's especially great for "debugging" because (a) it handles large 
triple sets; and (b) it ALWAYS loads the file. It has a special category 
"resources without rdf:type" that usually has the entities that have 
some problems with their definition below it.



John M. Linebarger wrote:
> We're just getting our feet wet in the Semantic Web and we want to 
> develop an ontology that has both OWL and SKOS facets.  But are there 
> any examples out there on how to mix the two in the same ontology?
> And I'm having a devil of a time getting the latest version of 
> skos-core.rdf to even import into Protege.  Here's what I encounter; is 
> this Protege's problem or yours?  What ontology editors do you use?  If 
> I can't bring SKOS into my ontology editor I can't use it ...
> Thanks!  Enjoy!
> John M. Linebarger, PhD
> Sandia National Laboratories
> Albuquerque, New Mexico, USA
> -------------------------------------------------------------
> [ProtegeOWLParser] Warning: No default namespace found in file.  Will 
> use http:
> /www.w3.org/2004/02/skos/core
> [ProtegeOWLParser] Completed triple loading after 391 ms
> [ProtegeOWLParser] Warning: Trying to add import for external resource: 
> http://
> mlns.com/foaf/0.1/
> [ProtegeOWLParser] Importing http://xmlns.com/foaf/0.1/ (from 
> http://xmlns.com/
> oaf/0.1/ [actual ontology at this location: null])
> [ProtegeOWLParser] Warning: Trying to add import for external resource: 
> http://
> url.org/dc/elements/1.1/
> [ProtegeOWLParser] Importing http://purl.org/dc/elements/1.1/ (from 
> Redirect to
> http://protege.stanford.edu/plugins/owl/dc/protege-dc.owl)
> [ProtegeOWLParser] Warning: Ignoring namespace prefix "dcterms" for 
> existing pr
> fix "dct"
> [TripleChangePostProcess or] Completed lists after 0 ms
> [TripleChangePostProcessor] Completed anonymous classes after 0 ms
> [TripleChangePostProcessor] Completed deprecated classes after 0 ms
> [TripleChangePostProcessor] Completed properties after 63 ms
> [TripleChangePostProcessor] Completed named classes after 0 ms
> ... Loading completed after 2516 ms
> WARNING: java.lang.ClassCastException: 
> edu.stanford.smi.protegex.owl.model.impl
> DefaultRDFProperty
>         at 
> edu.stanford.smi.protegex.owl.ui.properties.OWLObjectPropertySubprop
> rtyRoot.getTopLevelObjectProperties(Unknown Source)
>         at 
> edu.stanford.smi.protegex.owl.ui.properties.OWLObjectPropertySubprop
> rtyRoot.<init>(Unknown Source)
>         at 
> edu.stanford.smi.protegex.owl.ui.properties.OWLObjectPropertySubprop
> rtyPane.createRoot(Unknown Source)
>         at edu.stanford.s 
> mi.protegex.owl.ui.properties.OWLSubpropertyPane.<init
> (Unknown Source)

  Mark F.J. van Assem - Vrije Universiteit Amsterdam
        markREMOVE@cs.vu.nl - http://www.cs.vu.nl/~mark
Received on Wednesday, 17 May 2006 06:47:10 UTC

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