W3C home > Mailing lists > Public > public-esw-thes@w3.org > July 2008

RE: SKOS Comment (Reference WD June 2008) - broaderTransitive < broader, narrowerTransitive < narrower

From: Alistair Miles <alistair.miles@zoo.ox.ac.uk>
Date: Fri, 25 Jul 2008 11:34:35 +0100
To: "'Ana Oliveira'" <ana.quirino.oliveira@gmail.com>
Cc: <public-esw-thes@w3.org>, <public-swd-wg@w3.org>
Message-ID: <003f01c8ee42$08a2fa50$19e8eef0$@miles@zoo.ox.ac.uk>

Dear Joao Alberto,

Thank you for your comment.

I know Antoine has already responded, but I thought I'd add a slightly
different way of looking at it:

The property skos:broader represents a *direct* hierarchical link between
two concepts.

The property skos:broaderTransitive represents a *direct or indirect*
hierarchical link between two concepts.

The set of *direct* links is clearly a sub-set of the set of *direct or
indirect* links.

Hence skos:broader is a sub-property of skos:broaderTransitive.

The WG is very conscious that this point has caused a lot of confusion. Any
suggestions for how to make this pattern clearer are warmly welcomed.

Kind regards,

Alistair.

--
Alistair Miles
Senior Computing Officer
Image Bioinformatics Research Group
Department of Zoology
The Tinbergen Building
University of Oxford
South Parks Road
Oxford
OX1 3PS
United Kingdom
Web: http://purl.org/net/aliman
Email: alistair.miles@zoo.ox.ac.uk
Tel: +44 (0)1865 281993


> -----Original Message-----
> From: public-swd-wg-request@w3.org [mailto:public-swd-wg-
> request@w3.org] On Behalf Of Ana Oliveira
> Sent: 26 June 2008 03:44
> To: public-swd-wg@w3.org
> Subject: SKOS Comment (Reference WD June 2008) - broaderTransitive <
> broader, narrowerTransitive < narrower
> 
> Dear SKOS Editors,
> 
> The definition S19 states that:
>     "S19  skos:broader is a sub-property of skos:broaderTransitive and
> skos:narrower is a sub-property of skos:narrowerTransitive".
> 
> I think the correct form should be:
>     "S19  skos:broaderTransitive is a sub-property of skos:broader and
> skos:narrowerTransitive is a sub-property of skos:narrower".
> 
> because "to be broader transitive" is a specific case of "to be
> broader" (or narrower). The generic property should subsumes the
> specific one.
> 
>      If my comment is correct, it is necessary to adjust the "full set
> of sub-property relationships" diagram (above "Example 53") to follow
> this new hierarchy.
> 
> Best
> 
> Joao Alberto de Oliveira Lima
> 
> PS. This same comment was done in March'08 by
> http://lists.w3.org/Archives/Public/public-swd-wg/2008Mar/0089.html
Received on Friday, 25 July 2008 10:35:16 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:39:00 GMT