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Re: Use of XSD namespace in RDF recommendations

From: Antoine Zimmermann <antoine.zimmermann@emse.fr>
Date: Tue, 04 Sep 2012 16:13:56 +0200
Message-ID: <50460CA4.4000301@emse.fr>
To: public-rdf-comments@w3.org
I forgot to put a link to the article I mention, where you can see on 
page 4 how much the RDFS and OWL terms are used:

http://events.linkeddata.org/ldow2012/papers/ldow2012-paper-16.pdf


-AZ

Le 04/09/2012 16:10, Antoine Zimmermann a écrit :
>  From my little experience of Web ontologies, and according to a recent
> study on the use of OWL terms online [1], very very few.
>
> But all the OWL-2-specific features are showing up very little yet, in
> part because they are not well known (I still see often citations of the
> OWL 1 spec when referring to the standard Web Ontology Language) and in
> part because the new features are more complicated to use. People tend
> to use more what can be expressed with a single triple.
>
> There is also, I believe, a concern about whether this will interoperate
> with other people's applications, since not all semweb apps implement an
> OWL 2 processor.
>
>
> [1] B. Glimm, A. Hogan, M. Krötzsch, A. Polleres. OWL: Yet to arrive on
> the Web of Data? In Proceedings of LDOW 2012.
>
> Le 04/09/2012 15:37, Dan Brickley a écrit :
>> On 4 September 2012 21:11, Antoine Zimmermann
>> <antoine.zimmermann@emse.fr> wrote:
>>> FWIW, OWL 2 has a feature to define custom datatypes that can be written
>>> completely in RDF, without using XML Schema.
>>>
>>> Your example for Chapman codes can be written as follows, in Turtle
>>> syntax:
>>>
>>> @prefix geo:<http://www.example.com/geo#>
>>> @prefix xsd:<http://www.w3.org/2001/XMLSchema#>
>>> @prefix owl:<http://www.w3.org/2002/07/owl#>
>>> @prefix rdfs:<http://www.w3.org/2000/01/rdf-schema#>
>>>
>>> geo:chapman-code a rdfs:Datatype;
>>> owl:equivalentClass [
>>> a rdfs:Datatype;
>>> owl:onDatatype xsd:string;
>>> owl:withRestriction ( [xsd:pattern "[a-zA-Z]{3}"] )
>>> ] .
>>
>> Interesting! Are many of these showing up "in the wild" yet?
>>
>> Dan
>>
>>
>

-- 
Antoine Zimmermann
ISCOD / LSTI - Institut Henri Fayol
École Nationale Supérieure des Mines de Saint-Étienne
158 cours Fauriel
42023 Saint-Étienne Cedex 2
France
Tél:+33(0)4 77 42 66 03
Fax:+33(0)4 77 42 66 66
http://zimmer.aprilfoolsreview.com/
Received on Tuesday, 4 September 2012 14:14:26 UTC

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