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RE: candidate and deprecated concepts

From: Carl Mattocks <carlmattocks@checkmi.com>
Date: Wed, 13 Oct 2004 14:20:29 -0400 (EDT)
Message-ID: <10229.216.163.247.1.1097691629.squirrel@webmail.netcarrier.com>
To: "Miles, AJ \(Alistair\)" <A.J.Miles@rl.ac.uk>
Cc: "'Leonard Will'" <l.will@willpowerinfo.co.uk>, public-esw-thes@w3.org

at Al:

I prefer (1) [Explicit Membership Solution]:

carl
<quote who="Miles, AJ (Alistair)">
>
> Just to clarify on this point:
>
> At the moment, you can publish a set of concepts without any reference to
> a
> concept scheme.
>
> You can then state that 'concept X is a part of scheme Y,' or 'scheme Y
> contains concept X,' which is the basis for building concept schemes with
> concepts from different sources.
>
> Crucially, you *can* also define and publish semantic relationships
> between
> concepts, without any reference to a concept scheme.
>
> What you *cannot* do with SKOS Core at the moment is explicitly state that
> 'semantic relationship R is a part of scheme Y,' or 'scheme Y contains
> semantic relationship R.'
>
> If this is a strong requirement (and consensus so far suggests that it is)
> then I can suggest two ways of solving this:
>
>  (1) [Explicit Membership Solution]: Allow usage of the skos:inScheme (or
> analagous property) with reified RDF statements that represent semantic
> relationships between concepts.
>
>  (2) [Provenance Solution]: As part of the properties of the concept
> scheme,
> introduce a new property that allows you to state e.g. 'concept scheme X
> consists of the set of RDF statements loaded from resource Y'.
>
> What do we reckon?
>
> 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
>
>
>
>> -----Original Message-----
>> From: public-esw-thes-request@w3.org
>> [mailto:public-esw-thes-request@w3.org]On Behalf Of Leonard Will
>> Sent: 11 October 2004 20:57
>> To: public-esw-thes@w3.org
>> Subject: Re: candidate and deprecated concepts
>>
>>
>>
>> In message
>> <350DC7048372D31197F200902773DF4C05E50C9C@exchange11.rl.ac.uk> on Mon,
>> 11 Oct 2004, "Miles, AJ (Alistair)" <A.J.Miles@rl.ac.uk> wrote
>> >Within a semantic web context I think it makes better sense
>> to think of the
>> >first step being for an authority (or individual) to publish
>> a set of concepts.
>> >Concept schemes may then be described a posteriori to include all or
>> >some of these published concepts.  This allows for schemes to be
>> >described that include concepts from multiple sources.  I.e.
>> a concept has
>> >an existence and a publication status that is independent of
>> the schemes
>> >(or scheme versions) which it participates in.
>>
>> I think it would be difficult to publish a set a concepts "in the
>> abstract" without any implicit relationships between them, whether you
>> call this a "scheme" or not. The problem is that the usual way of
>> defining a concept is to say what broader concept it is a
>> member of, and
>> then specify the ways in which it is differentiated from other members
>> of that broader concept.
>>
>> E.g.    "A child is_a person less than 18 years old"
>>         "An insect is_an invertebrate with a jointed body and
>> six legs"
>>         "Physics is_a science which deals with matter and energy"
>>
>> Thus in the act of defining concepts you define hierarchical
>> relationships to other concepts. You may be able to specify additional
>> relationships of all kinds between concepts to make a more complex
>> scheme, but that is additonal to the hierarchy inherent in the
>> definitions.
>>
>> Leonard
>>
>> --
>> Willpower Information       (Partners: Dr Leonard D Will,
>> Sheena E Will)
>> Information Management Consultants              Tel: +44
>> (0)20 8372 0092
>> 27 Calshot Way, Enfield, Middlesex EN2 7BQ, UK. Fax: +44
>> (0)870 051 7276
>> L.Will@Willpowerinfo.co.uk
>> Sheena.Will@Willpowerinfo.co.uk
>> ---------------- <URL:http://www.willpowerinfo.co.uk/>
>> -----------------
>>
>
>


-- 
Carl Mattocks

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co-Chair OASIS Business Centric Methodology TC
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Received on Wednesday, 13 October 2004 18:20:30 UTC

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