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Re: blog: semantic dissonance in uniprot

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Tue, 24 Mar 2009 10:23:13 -0400
Message-ID: <49C8ECD1.5030706@openlinksw.com>
To: Bijan Parsia <bparsia@cs.man.ac.uk>
CC: W3C HCLSIG hcls <public-semweb-lifesci@w3.org>
Bijan Parsia wrote:
> On 24 Mar 2009, at 13:01, Kingsley Idehen wrote:
> [snip]
>> Bijan,
>> Is "Identity" important or not? That's the question here.
> But it's not a well-defined question.
> But let me make a well-defined version (not meant to capture your 
> question, but just to be clear example). In XSD, 1.0^^xsd:double is 
> not identical (is numerically distinct from) 1.0^^xsd:decimal. For 
> counting successors, identity is critical. For numeric equality (for a 
> given equality theory) and arithmetic (under that theory) it isn't.
>> Is granularity important or not? A variation of the statement above.
> I don't see how that is a variation of any variant of the question above.
>> 303s are just about "Identity" at the datum level within the context 
>> of the Web when using a particular form of HTTP based URI scheme (the 
>> Slash based URI).
> I don't understand that at all.
>> Should we be able to reference a datum and de-reference a 
>> representation of its description via the Web?
> Sometimes? Maybe? I don't know? I'm close to not caring? I don't see 
> the big impact on engineering, frankly, at a substantial level. It 
> would depend on the context, the notion of datum, etc. etc.
> Again, I prefer operational descriptions here. I'm being perfectly 
> honest and as charitable as I know how when I say I have no idea what 
> the "datum level within the context of the Web" *is*. Or, actually, 
> why I should care about it when building an ontology.
> And I am not naive in these matters.

I am not assuming naivety on your part.

I just want to focus on the essence of my comments to Michel and Peter 
who have issues with the use of 303 redirection to achieve separation of 
datum identity from descriptive representation, when using a particular 
URI scheme.

I am simply interested in explaining to them what this is trying to 
achieve since it remains a strange point of contention.  I use the word 
"strange" because I believe that the mechanics of the process  are 
obscuring the fundamental concept in play: Object Identity.

> Cheers,
> Bijan.



Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com
Received on Tuesday, 24 March 2009 14:23:54 UTC

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