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Re: URIs / Ontology for Physical Units and Quantities

From: Wes Turner <wes.turner@gmail.com>
Date: Wed, 6 May 2015 13:34:40 -0500
Message-ID: <CACfEFw8O1JUxYzVXEaH06BjOmAUR3uRVMCbE99oNNhq8CG7jFw@mail.gmail.com>
To: Martin Hepp <martin.hepp@ebusiness-unibw.org>
Cc: public-vocabs@w3.org, ☮ elf Pavlik ☮ <perpetual-tripper@wwelves.org>
Thanks!

I notice that with QUDT there are SI conversion factors and complete URIs
for each unit.

Is there a schema for validation of "schema:QuantativeValues supports all
UN/CEFACT Common Codes"?

(A similar quandry as with MedicalCode; where URI namespaces (like icd10:)
would be more helpful for terminological validation and disambiguation than
plain string keys)

On May 6, 2015 4:26 AM, "martin.hepp@ebusiness-unibw.org" <
martin.hepp@ebusiness-unibw.org> wrote:
>
> Hi Wes,
> sorry for a very late reply:
>
> Actually you could easily use schema:QuantitativeValue for both time and
volume, with SEC as the unit code for t and LTR as the unit code for
liters, and link both via schema:valueReference, or better, and
owl:subProperty thereof.
>
> For the principle, see
>
>
http://wiki.goodrelations-vocabulary.org/Documentation/Structured_values_and_value_references
>
>
> schema:QuantativeValues supports all UN/CEFACT Common Codes for units,
which should cover all you need:
>
>
>
http://wiki.goodrelations-vocabulary.org/Documentation/UN/CEFACT_Common_Codes
>
> (Mind the full list in the public Excel files, the page just highlights a
small subset.)
>
> Best wishes / Mit freundlichen Grüßen
>
> Martin Hepp
>
> -------------------------------------------------------
> martin hepp
> e-business & web science research group
> universitaet der bundeswehr muenchen
>
> e-mail:  martin.hepp@unibw.de
> phone:   +49-(0)89-6004-4217
> fax:     +49-(0)89-6004-4620
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>          http://www.heppnetz.de/ (personal)
> skype:   mfhepp
> twitter: mfhepp
>
> Check out GoodRelations for E-Commerce on the Web of Linked Data!
> =================================================================
> * Project Main Page: http://purl.org/goodrelations/
>
>
>
>
> > On 01 May 2015, at 13:45, ☮ elf Pavlik ☮ <perpetual-tripper@wwelves.org>
wrote:
> >
> > Hi Wes,
> >
> > On 01/26/2014 07:20 AM, Wes Turner wrote:
> >> Say I am trying to share a tabular dataset. [1] There's metadata for
> >> the Dataset, and there's metadata for the particular columns (which
> >> applies to the particular data items).
> >>
> >> For example:
> >>
> >> t   volume (liters)
> >> -----------------
> >> 1  1
> >> 2  0.7
> >> 3  0.5
> >> 4  0.3
> >> 5  0.1
> >>
> >> Questions
> >> ===========
> >> # Is there (a good) way to specify these units and quantities (in
> >> addition to XSD datatypes)?
> > You might like to check out
> > * https://iotdb.org/pub/iot-unit.html
> >
> > Cheers!
> >
> >
>
Received on Wednesday, 6 May 2015 18:35:11 UTC

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