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Re: Colors

From: Hugh Glaser <hg@ecs.soton.ac.uk>
Date: Wed, 24 Feb 2010 15:52:48 +0000
To: David Baxter <retxabd@gmail.com>, Christoph LANGE <ch.lange@jacobs-university.de>
CC: Pat Hayes <phayes@ihmc.us>, Linked Data community <public-lod@w3.org>
Message-ID: <EMEW3|0ab63f218274b6d2e7521cf62da30330m1NFqs02hg|ecs.soton.ac.uk|C7AAFBD0.1069E%hg@ecs.soton.ac.uk>
And of course (I would say :-) ) that this has same as at sameas.org:
To get to dbpedia etc. (or vice versa).

Perhaps more interestingly, putting “red” into the text search box at sameas.org, which queries Sindice.com to find candidate URIs, comes back with a range of URIs considered equivalent candidates:


On 24/02/2010 13:04, "David Baxter" <retxabd@gmail.com> wrote:

OpenCyc has colors represented as owl classes, e.g. "red <http://sw.opencyc.org/concept/Mx4r0L_kLnS6EdaAAACgyZzFrg> " is the class of all things that are red. All colors are instances of the second-order class color <http://sw.opencyc.org/concept/Mx4rr19QJHStEdaAAACgyZzFrg> .

David Baxter

On Wed, Feb 24, 2010 at 4:39 AM, Christoph LANGE <ch.lange@jacobs-university.de> wrote:
2010-02-24 08:31 Pat Hayes <phayes@ihmc.us>:
> Does anyone know of URIs which identify colors? Umbel has the general
> notion of Color, but I want the actual colors, like, you know, red,
> white, blue and yellow. I can make up my own, but would rather use
> some already out there, if they exist.

Do you really need URIs?  I.e. do you want to add further descriptions or
links to colors, such as "color1 is nicer than color2", or "color can be
produced from material" – or do you just want to point to colors ("thing has
color")?  In the latter case, wouldn't literals with datatypes be sufficient?
For literals, there is at least a standard for RGB colors: #RRGGBB.  Still,
here it's the standard _datatype_ that's missing.



Christoph Lange, Jacobs Univ. Bremen, http://kwarc.info/clange, Skype duke4701
Received on Wednesday, 24 February 2010 15:53:33 UTC

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