Re: FYI: Interval Vocabulary

FYI:

http://schema.org/QuantitativeValue supports point values as well as closed and on-sided intervals for all popular datatypes.

Plus, in the OWL version of GoodRelations (currently missing in schema.org, but will be added), there are two axioms that expand point values to intervals with matching upper/lower bounds, which means quering intervals and point values can use the same SPARQL queries:

schema:value rdfs:subPropertyOf schema:minValue, schema:maxValue .

See 

    http://wiki.goodrelations-vocabulary.org/Documentation/Quantitative_values

(unfortunately work in progress).

Note: Currently, the datatypes are restricted to numerical values, because for date ranges, I felt that separate properties would be more appropriate. Temporal intervals are supported, though, by using unit codes for time, lice SEC (seconds) or MON (months).


Best wishes / Mit freundlichen Grüßen

Martin Hepp

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martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

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> On 01 May 2015, at 10:38, ☮ elf Pavlik ☮ <perpetual-tripper@wwelves.org> wrote:
> 
> Hi James,
> 
> On 01/15/2015 04:37 AM, James M Snell wrote:
>> FYI...
>> 
>> ---------- Forwarded message ----------
>> From: James M Snell <jasnell@gmail.com>
>> Date: Wed, Jan 14, 2015 at 4:55 PM
>> Subject: FYI: Interval Vocabulary
>> To: "public-socialweb@w3.org" <public-socialweb@w3.org>
>> 
>> 
>> Just wanted to make folks aware of this..
>> 
>>  http://ns.jasnell.me/interval
>> 
>> It's a small vocabulary for representing bounded intervals (totally
>> ordered sets). It is born out of various Activity Streams use case
>> including the ability to indicate validity date ranges for certain
>> types of objects, identifying filter ranges for Collection items and
>> other wonderful things.
>> 
>> It ought to be fairly straightforward. Would eventually be interested
>> in seeing this become a WG Note but definitely not a priority.
> 
> Did you compare it by any chance with The Time Ontology?
> * http://motools.sourceforge.net/timeline/timeline.html
> * http://prefix.cc/tl
> * http://lov.okfn.org/dataset/lov/vocabs/tl
> 
> I would also see use in *before* / *after* relationships besides exact
> time intervals! http://en.wikipedia.org/wiki/Allen%27s_interval_algebra
> 
> Cheers!
>

Received on Wednesday, 6 May 2015 09:35:06 UTC