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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 16:26:25 +0100
To: Alasdair Gray <agray@dcs.gla.ac.uk>
Cc: public-esw-thes@w3.org, public-swd-wg@w3.org
Message-Id: <1216999585.18802.4.camel@skiathos>

Hi Alasdair,

On Fri, 2008-07-25 at 15:41 +0100, Alasdair Gray wrote:
> Hi Alistair,
> 
> Until the workshop in London at the start of this week I had been  
> unclear about when to use skos:broader and skos:broaderTransitive.  
> Antoine's talk really cleared this up for me. 

Yes, I thought his slide on this was very nice.

> However, the way you  
> have worded the reply below would, I think, help. That is, give the  
> motivation for the two and then explain them. Perhaps an example helps  
> as well.

Are you suggesting we use wording similar to that I gave below in the
SKOS Reference? (I'm editing the new draft today, so can review
wording.) 

Cheers,

Alistair.

> 
> Thanks to all the speakers on Monday,
> 
> Alasdair
> 
> On 25 Jul 2008, at 11:34, Alistair Miles wrote:
> 
> >
> > 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
> >
> >
> >
> 
> Dr Alasdair J G Gray
> agray@dcs.gla.ac.uk
> http://www.dcs.gla.ac.uk/~agray/
> http://explicator.dcs.gla.ac.uk/
> 
> 
> 
Received on Friday, 25 July 2008 15:34:22 GMT

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