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Re: Best practices: SKOS-XL or SKOS Core

From: Thomas Bandholtz <thomas.bandholtz@innoq.com>
Date: Thu, 19 Nov 2009 19:38:46 +0100
Message-ID: <4B0590B6.6090103@innoq.com>
To: "LAABOUDI Christine (OPOCE)" <Christine.LAABOUDI@publications.europa.eu>
CC: "'public-esw-thes@w3.org'" <public-esw-thes@w3.org>, "CHAILLOUX Cedric (OPOCE)" <Cedric.CHAILLOUX@publications.europa.eu>, "KUSTER Marc (OPOCE)" <Marc.KUSTER@publications.europa.eu>
Hi Christine,

in SKOS-XL you can have relations between terms (xl:Label) which you
cannot in SKOS.
SKOS only knows relations between Concepts, ConceptSchemes, and
Collections, while terms are simple string attributes.

As to your homograph example, I have described a full pattern in
http://lists.w3.org/Archives/Public/public-esw-thes/2009Nov/0087.html

Johan gave a slightly different example from Eurovoc in
http://lists.w3.org/Archives/Public/public-esw-thes/2009Nov/0092.html
He does not use xl.Label instances for the qualifiers like I do, they
are simple string attributes of the homograph Label.

Both examples are valid as far as I see.
But I think that "fish" and "music" might be in use as prefTerms (or
nonPrefTerms) of different Concepts as well, so they would exist as
xl:Label instances anyway. In this case why not relate to them for the
qualifiers?

I do not see any cons against the XL representation as long as you want
to express such (or similar) relations between terms.
Otherwise you would not need XL. SKOS without XL is more compact, based
on a general simplification of the lexical structure.

Best regards,
Thomas
 

LAABOUDI Christine (OPOCE) schrieb:
> Dear all,
>  
> In Eurovoc RDF, preferred terms are represented in SKOS-XL rather than
> in SKOS core?
> What are the pro/cons of this representation?
>  
> Example of a preferred terms + qualifier:
>  
>         <rdf:Description rdf:about="http://eurovoc.europa.eu/383173 ">
>         <xl:literalForm xml:lang="sl">Butan (Kraljevina)</xl:literalForm>
>         </rdf:Description>
>        
>         <rdf:Description rdf:about="http://eurovoc.europa.eu/381993 ">
>         <xl:literalForm xml:lang="sl">butan (plin)</xl:literalForm>
>         </rdf:Description>
>  
> Regards,
>  
> Christine LAABOUDI-SPOIDEN
> Publications Office
> EUR-Lex Unit
> Eurovoc Team
>  
>  


-- 
Thomas Bandholtz, thomas.bandholtz@innoq.com, http://www.innoq.com 
innoQ Deutschland GmbH, Halskestr. 17, D-40880 Ratingen, Germany
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Received on Thursday, 19 November 2009 18:39:23 GMT

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