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Re: skos:related

From: Charles McCathieNevile <charles@w3.org>
Date: Mon, 15 Mar 2004 07:40:34 -0500 (EST)
To: "Miles, AJ (Alistair) " <A.J.Miles@rl.ac.uk>
Cc: "'public-esw-thes@w3.org'" <public-esw-thes@w3.org>
Message-ID: <Pine.LNX.4.55.0403150734500.25928@homer.w3.org>

If we define skos:related as being symmetric, can we define subProperties as
being inverse, or otherwise not entirely symetric?

If we can do this at the same level (I think these are both in OWL, but I am
not familiar enough with the specifications to know the answer to my question
above) then I think it is the best solution. Otherwise, in the interest of
not making the tricky (but often interesting) things impossible, I suggest we
define relatedSymmetric as a subProperty of related, and make that a
symmetric relation.

(Alternatively we could define related as being symmetric, and a subProperty
of rdfs:seeAlso, and non-symmetric relations as subProperties of seeAlso or
of some relatedAsymmmetric property. The two proposals are just alternate
labels for the same concepts, as far as I can tell).

cheers

Chaals

On Mon, 15 Mar 2004, Miles, AJ (Alistair)  wrote:

>
>Just reread this more carefully from Leonard:
>
>---
>In most conventional thesauri, "related" relationships are treated as
>symmetric, even though more precise specification would recognise that
>many of them are directional, e.g. activity/agent, process/product,
>cause/effect and so on.
>
>If such a conventional thesaurus is encoded in SKOS format, should such
>relationships be shown as "skos:relatedSymmetric", that being the way
>they are treated, or should they be given the more general coding
>"skos:related", leaving the way open to refine the nature of the
>relationship in future?
>---
>
>Does anyone have any thoughts on this?
>
>Al.
>
>
>---
>Alistair Miles
>Research Associate
>CCLRC - Rutherford Appleton Laboratory
>Building R1 Room 1.60
>Fermi Avenue
>Chilton
>Didcot
>Oxfordshire OX11 0QX
>United Kingdom
>Email:        a.j.miles@rl.ac.uk
>Tel: +44 (0)1235 445440
>
>

Charles McCathieNevile  http://www.w3.org/People/Charles  tel: +61 409 134 136
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Received on Monday, 15 March 2004 07:40:34 GMT

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