On Thu, July 12, 2012 12:04, Steve Ray wrote:
> Matthew,
> I completely agree with you, and would be interested to hear from
> this group what they believe are authoritative URIs for common data types
> such as: (01)
There are actually different concepts for the below classes in different
languages. A generic concept for each would have a set of subclasses
for restrictions on number of bits, what can be accepted as a Boolean
value, what characters are valid in a String, etc. (02)
FWIW, OpenCyc has URIs for such concepts (and for specializations
thereof). Most of them can be found with the Cyc name in the namespace
http://umbel.org/umbel/rc/ : (03)
> Float (or Real)
http://sw.opencyc.org/2012/05/10/concept/Mx4rfy54ZtR8EdqAAAAOpmP6eA
or cyc:RealNumberDatatype
with subtypes cyc:4ByteRealDatatype and cyc:8ByteRealDatatype (04)
> Integer
http://umbel.org/umbel/rc/IntegerComputerNumber (05)
with subtypes:
cyc:1ByteIntegerDatatype cyc:2ByteIntegerDatatype
cyc:4ByteIntegerDatatype cyc:8ByteIntegerDatatype
cyc:TwosComplementIntegerDatatype (06)
> Boolean
http://sw.opencyc.org/2012/05/10/concept/Mx4rrRM6tinOEdietAAH6RYvVA
or cyc:BooleanObject (07)
> String
http://umbel.org/umbel/rc/StringObject (08)
> And then, thoughts on the same for measured quantities such as:
>
> AbsoluteDateTime
W3 has this one: http://www.w3.org/2000/10/XMLSchema#dateTime
http://umbel.org/umbel/rc/Date (09)
> Duration
http://umbel.org/umbel/rc/Time-Quantity (010)
-- doug f (011)
> (I'll stop here for now)
>
> - Steve
>
>
>
> Steven R. Ray, Ph.D.
> Distinguished Research Fellow
> Carnegie Mellon University
> NASA Research Park
> Building 23 (MS 23-11)
> P.O. Box 1
> Moffett Field, CA 94305-0001
> Email: steve.ray@xxxxxxxxxx
> Phone: (650) 587-3780
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> Skype: steverayconsulting
>
>
> -----Original Message-----
> From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
> [mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Matthew West
> Sent: Thursday, July 12, 2012 12:37 AM
> To: doug@xxxxxxxxxx; '[ontolog-forum] '
> Subject: Re: [ontolog-forum] URIs [was: Truth]
>
> Dear Doug,
>
> I think this is an important point.
>
> DF> The more that people reuse existing URIs instead of inventing their
> DF> own,
> the
>> more utility the massive tuple stores can provide.
>
> MW: One of the things I try to promote is the idea of an authoritative
> source, so not only are there relatively few URIs for the same thing, but
> there is a natural preference for which one to use. So to cross threads,
> if
> we are looking for what URI to use to identify Ferrari 458 Italia, the
> one
> Ferrari uses should be preferred, because they are clearly the
> authoritative
> source.
>
> MW: This has the corollary that authoritative sources have the
> responsibility to create URIs for the things they are responsible for.
>
> Regards
>
> Matthew West
> Information Junction
> Tel: +44 1489 880185
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