W3C home > Mailing lists > Public > public-esw-thes@w3.org > November 2009

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

Johan gave a slightly different example from Eurovoc in
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

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,

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,
> 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
Phone: +49 228 9288490 Mobile: +49 178 4049387 Fax: +49 228 9288491
Received on Thursday, 19 November 2009 18:39:23 UTC

This archive was generated by hypermail 2.3.1 : Wednesday, 2 March 2016 13:32:12 UTC