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Re: ontology for units of measurement and/or physical quantities

From: Elisa F. Kendall <ekendall@sandsoft.com>
Date: Fri, 22 Sep 2006 20:52:01 -0700
Message-ID: <4514AF61.5080702@sandsoft.com>
To: Robert Dodier <robert.dodier@gmail.com>
CC: semantic-web@w3.org, Evan Wallace <ewallace@cme.nist.gov>

Hi Robert,

We have done some work in this area that extends the work Tom Gruber 
initiated with the
ontology and paper you've linked to, below.  Our work is in conjunction 
with Evan Wallace,
at NIST, and was intended as a potential working group product for the 
W3C Semantic Web
Deployment working group, as a follow-on to work initiated in the Best 
Practices and
Deployment WG.  It's not yet ready for publication, but we can share 
work in progress if
that would be helpful.

Evan has also been active in the UnitsML [1] effort, and may be able to 
provide additional

Best regards,

Elisa Kendall

[1] http://unitsml.nist.gov/

Robert Dodier wrote:

> On 9/14/06, Robert Dodier <robert.dodier@gmail.com> wrote:
>> I am interested in the problem of communicating physical quantities,
>> e.g. between a web service and its client.
> To follow up on my previous message -- it appears that at present
> there is not a generally accepted conventional approach for working
> with physical quantities. However, it is a popular topic and there
> is a lot of material on the web. Here are a couple of links for items
> that seem useful in this context.
> "An Ontology for Engineering Mathematics" --
> http://ksl.stanford.edu/knowledge-sharing/papers/engmath.html
> Written back in the 90's, but I think the conceptual stuff is still 
> applicable.
> See also the associated Lisp code:
> http://www-ksl.stanford.edu/knowledge-sharing/ontologies/html/physical-quantities/physical-quantities.lisp.html 
> UDUNITS -- library of functions for carrying out units conversions.
> http://www.unidata.ucar.edu/software/udunits/
> Includes a lengthy list of conversion factors:
> http://www.unidata.ucar.edu/software/udunits/udunits.txt
> Hope this information is useful to someone!
> Robert Dodier
Received on Saturday, 23 September 2006 03:52:15 UTC

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