Re: How to use notations from classification schemes in SKOS

Hi Bernard,

If we had a 'notation' property for use with typed literals, you could 
express this constraint (albeit informally) ... E.g. a concept cannot 
have more than one 'notation' from the 'alpha-2' notation datatype.

I don't think it would be appropriate to express a similar constraint in 
the general case (no more than one 'notation' per 'notation datatype'), 
however, as I believe some classification schemes allow more than one 
'notation' for each concept (e.g. MeSH?).

Cheers,

Al.

Bernard Vatant wrote:
>   +1 for Andrew's requirement
> 
> The example I'm working on currently is languages, as by ISO-639, trying 
> to figure a SKOS representation e.g. of the 20 official languages of the 
> European Community, each one having a prefLabel in each other, and ISO 
> codes. In ISO-639 source, there is a label in French and English, which 
> looks indeed more like an informative 'caption', whereas the real 
> "prefLabel(s)" are codes ... with the extra issue of having up to three 
> distinct codes, alpha-2, alpha-3B and alpha-3C for each language, 
> questioning the unicity of prefLabel ...
> 
> Would it make sense to define any code or notation type as a subproperty 
> of skos:prefLabel, with the unicity constraint applied to each of those 
> subproperties independently, so that the same concept could have several 
> prefLabel(s), but at most one for a given subtype, e.g. at most one DDC 
> number, at most one OCLC number, at most one ISO-639 alpha-2 code, 
> whatever (note all those are language-independent), and at most one 
> untyped prefLabel (in any language).
> 
> What do you think?
> 
> Bernard
> 
> Houghton,Andrew a écrit :
>>> From: public-esw-thes-request@w3.org <mailto:public-esw-thes-request@w3.org> 
>>> [mailto:public-esw-thes-request@w3.org] On Behalf Of Svensson, Lars
>>> Sent: 13 February, 2006 09:07
>>> To: Danny Ayers
>>> Cc: public-esw-thes@w3.org <mailto:public-esw-thes@w3.org>
>>> Subject: AW: How to use notations from classification schemes in SKOS
>>>
>>> Errr, well yes. Maybe my quest wasn't quite clear. What I 
>>> need is not any kind of identifier, but a label. An example: 
>>> the class 025.43 in the Dewey Decimal Classification has the 
>>> caption "General classification systems". I want to express 
>>> "General classification systems" AND "025.43" as 
>>> human-readable labels. Something like
>>>
>>> [ns declarations omitted]
>>> ddc:025.43 rdfs:type skos:Concept ;
>>> 	skos:prefLabel "General classification systems"@en ;
>>> 	skos:notation "025.43" .
>>>
>>>     
>> BTW, as far as the editors of the DDC are concerned, 025.43 is considered the "preferred" label, not the caption.  The caption is considered an "alternate" label where there will be one or more for each translation.
>>
>>
>> Andy.
>>
>> Andrew Houghton, OCLC Online Computer Library Center, Inc.
>> http://www.oclc.org/about/
>> http://www.oclc.org/research/staff/houghton.htm

-- 
Alistair Miles
Research Associate
CCLRC - Rutherford Appleton Laboratory
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Email: a.j.miles@rl.ac.uk
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Received on Monday, 13 February 2006 15:27:33 UTC