Re: URIs / Ontology for Physical Units and Quantities

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
>
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>
>
>
>
> > 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!
> >
> >
>