W3C home > Mailing lists > Public > semantic-web@w3.org > December 2008

Re: units and durations

From: Diego Berrueta <diego.berrueta@fundacionctic.org>
Date: Thu, 11 Dec 2008 17:58:13 +0100
To: Story Henry <henry.story@bblfish.net>
Cc: Toby A Inkster <tai@g5n.co.uk>, georgi.kobilarov@gmx.de, dbpedia-discussion@lists.sourceforge.net, public-lod@w3.org, Semantic Web <semantic-web@w3.org>
Message-Id: <1229014693.7255.22.camel@duncan.lan>

Dear Henry,

El mié, 10-12-2008 a las 16:33 +0100, Story Henry escribió:
> > See:
> > http://idi.fundacionctic.org/muo/muo-vocab.html
> 
> Very thorough work but it makes the mistakes described here
> 
> http://esw.w3.org/topic/InterpretationProperties
> 
> So for example his example
> 
> http://forge.morfeo-project.org/wiki_en/index.php/Units_of_measurement_ontology
> 
> :Spain :area [ muo:numericalValue "504782"^^xsd:double ;
>                 muo:measuredIn :Sq_Km ] .
> 
> 
> will when merged with the following which represents the same area
> 
> :Spain :area [ muo:numericalValue "504782000000"^^xsd:double ;
>                 muo:measuredIn :Sq_m ] .
> give the useless
> :Spain :area [ muo:numericalValue "504782"^^xsd:double ;
>                 muo:numericalValue "504782000000"^^xsd:double ;
>                 muo:measuredIn :Sq_m;
>                 muo:measuredIn :Sq_Km ] .
> 
> if the :area relation is considered to be functional, which it should  
> very well be considered to be.
> A better solution is found here:
> http://www.w3.org/2007/ont/unit

We are aware of this issue with OWL functional properties. It was
discussed during the SWIG f2f meeting at Mandelieu. We are researching
how to make compatible the basic foundations of qualities and quales
(that are the inpiration for MUO) and the semantics of DL functional
properties. Actually, we were awaiting to come up with a satisfactory
solution for this issue before preparing the member submission to W3C.

We would be pleased to futher discuss this issue, probably in a separate
thread.

Best,

-- 
Diego Berrueta
R&D Department  -  CTIC Foundation
E-mail: diego.berrueta@fundacionctic.org
Phone: +34 984 29 12 12
Parque Científico Tecnológico Gijón-Asturias-Spain
www.fundacionctic.org
Received on Thursday, 11 December 2008 16:58:58 GMT

This archive was generated by hypermail 2.3.1 : Tuesday, 26 March 2013 21:45:26 GMT