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Re: New version of URI Declarations [Usage scenarios]

From: Pat Hayes <phayes@ihmc.us>
Date: Sat, 1 Mar 2008 20:15:50 -0600
Message-Id: <p06230905c3efbd0ba21e@[]>
To: ashok.malhotra@oracle.com
Cc: John Cowan <cowan@ccil.org>, "Booth, David (HP Software - Boston)" <dbooth@hp.com>, "www-tag@w3.org" <www-tag@w3.org>

At 4:02 PM -0800 3/1/08, ashok malhotra wrote:
>But only iff they are essential, identifying claims.

Aside: I would love to see one of these. I don't think they exist.

>In the general case we shd all use Alices's URI 
>but qualify the claim with the claimant.
>This is closer to real life.  I claim Hilary Clinton will win the nomination.
>My wife claims she will not.

BUt take this (actual) example: I recently found 
an entry on a site which listed interesting facts 
about various numbers:

30.48  ....  By convention, the number of inches in a foot.

Hmm. Seemed to me like a typo (which it was, of 
course.) But following the logic used by David, 
what I should have done was assume that the site 
didn't mean what it seemed to mean by the numeral 
"30.48", and in fact it meant that to denote 12. 
Or maybe, it meant "foot" to denote a yard, or a 
meter; or, maybe, that it meant "inch" to denote 
centimeter. None of which seem like sensible 
strategies to me.


>John Cowan wrote:
>>Booth, David (HP Software - Boston) scripsit:
>>>SCENARIO 1: Fred wishes to publish some RDF assertions about a
>>>particular protein.  He notices that Alice, Beatrice and Carl have
>>>already published assertions about the protein, and they all use the
>>>same URI to denote that protein: the URI minted by Alice.  Fred notices
>>>that if he uses Alice's URI to denote the protein, his assertions will
>>>be logically inconsistent with some of Alice's assertions, although
>>>they are logically consistent with Beatrice and Carl's assertions.
>>>He wonders whether he should publish his assertions using Alice's URI
>>>-- and post a blog entry noting that his assertions should not be used
>>>in conjunction with Alice's assertions -- or mint a new URI.
>>>Question: Should Fred use Alice's URI?
>>>Answer: No.  He should mint a new URI and indicate the relationship
>>>(not owl:sameAs) to Alice's URI -- at least rdfs:seeAlso.
>>That sounds right iff Fred's assertions are essential (identifying) claims,
>>but not otherwise.  If I assert that aneurine 
>>HCl is soluble in water, and you
>>assert that it is insoluble, it is more likely that one of us is wrong
>>than that we mean two different things by the term "aneurine HCl".
>All the best, Ashok

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Received on Sunday, 2 March 2008 02:16:07 UTC

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