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Re: comments on RDF mapping

From: Jim Hendler <hendler@cs.rpi.edu>
Date: Tue, 23 Oct 2007 09:33:53 -0400
Message-Id: <FE2A1345-3697-4281-9B6B-E2917C0A0364@cs.rpi.edu>
Cc: Michael Smith <msmith@clarkparsia.com>, public-owl-wg@w3.org
To: Ian Horrocks <Ian.Horrocks@comlab.ox.ac.uk>

thanks Ian/Mike - that's just what I needed (I hadn't upgraded my  
Protege - will clearly need to so I can stop asking these dumb  
questions) - obviously we will eventually need a document that takes  
people through all this (extension to guide/reference), but for now  
it would help just to have the vocabulary stuff pulled out - maybe  
one of the implementors in the group could do this -- the structural  
document would be much better, IMO, if it included such a list so  
language-oriented people like me could more easily see what is being  
proposed
  -JH



On Oct 23, 2007, at 9:26 AM, Ian Horrocks wrote:

>
> Jim,
>
> You (and others with similar questions) may find it useful to try  
> the following:
>
> - grab one of the editing tools that already supports the OWL 1.1  
> draft (Protege 4.0 [1] works well for me);
> - create a suitable definition (of Hand in your case)
> - save the ontology
> - look at the file with your favourite text editor
>
> In this case I get:
>
>     <owl:Class rdf:about="#Hand">
>         <rdfs:subClassOf>
>             <owl:Restriction>
>                 <owl:onProperty rdf:resource="#hasPart"/>
>                 <owl11:onClass rdf:resource="#Thumb"/>
>                 <owl:cardinality  
> rdf:datatype="&xsd;nonNegativeInteger">1</owl:cardinality>
>             </owl:Restriction>
>         </rdfs:subClassOf>
>         <rdfs:subClassOf>
>             <owl:Restriction>
>                 <owl:onProperty rdf:resource="#hasPart"/>
>                 <owl11:onClass rdf:resource="#Finger"/>
>                 <owl:cardinality  
> rdf:datatype="&xsd;nonNegativeInteger">5</owl:cardinality>
>             </owl:Restriction>
>         </rdfs:subClassOf>
>         <rdfs:subClassOf rdf:resource="&owl;Thing"/>
>     </owl:Class>
>
> Hope this helps.
>
> Ian
>
> [1] http://protege.stanford.edu/download/prerelease-alpha/index.html
>
> On 23 Oct 2007, at 14:10, Jim Hendler wrote:
>
>>
>> Sorry Mike, you'll have to be clearer than that for me - I'm just  
>> some dumb techie (i.e. I see the vocabulary terms, but not how to  
>> use them) -- let's use a simple example - the example of a QCR  
>> raised to the original working group was to be able to say
>>  A hand has five fingers, one of which is a thumb.
>> Can you show me how to say this in OWL11 (in a document format -  
>> RDF or N3 preferably)
>>  thanks
>>  Jim H.
>>
>>
>> On Oct 23, 2007, at 8:37 AM, Michael Smith wrote:
>>
>>>
>>>
>>> On Mon, 2007-10-22 at 18:17 -0400, Jim Hendler wrote:
>>>
>>>>   To put it another way - the intro to these documents mentions
>>>> qualified cardinality restrictions as one of the key new
>>>> functionalities added to OWL 1.1 -- can someone point me to the  
>>>> point
>>>> in this document which mentions how to write such a thing in RDF?
>>>
>>> Assuming we're both looking at [1], that information is contained in
>>> Table 2, "Transformation to Triples".  Note the rows in which
>>> "Transformation T(S)" includes a statement using either the
>>> owl11:onClass or owl11:onDataRange predicates.
>>> -- 
>>> Mike Smith
>>>
>>> Clark & Parsia
>>>
>>> [1] http://www.webont.org/owl/1.1/rdf_mapping.html
>>>
>>>
>>
>> "If we knew what we were doing, it wouldn't be called research,  
>> would it?." - Albert Einstein
>>
>> Prof James Hendler				http://www.cs.rpi.edu/~hendler
>> Tetherless World Constellation Chair
>> Computer Science Dept
>> Rensselaer Polytechnic Institute, Troy NY 12180
>>
>>
>>
>>
>>
>
>

"If we knew what we were doing, it wouldn't be called research, would  
it?." - Albert Einstein

Prof James Hendler				http://www.cs.rpi.edu/~hendler
Tetherless World Constellation Chair
Computer Science Dept
Rensselaer Polytechnic Institute, Troy NY 12180
Received on Tuesday, 23 October 2007 13:34:28 GMT

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