W3C home > Mailing lists > Public > www-tag@w3.org > December 2007

Re: [httpRange-14] What is an Information Resource?

From: Pat Hayes <phayes@ihmc.us>
Date: Mon, 17 Dec 2007 17:34:35 -0800
Message-Id: <p06230927c38ccf330470@[]>
To: noah_mendelsohn@us.ibm.com
Cc: "Sean B. Palmer" <sean@miscoranda.com>, www-tag@w3.org

>.... I think an RDF graph is not a
>document, but is an IR.  I believe that an RDF graph is pretty completely
>characterized by a set of triples.

An RDF graph is *defined* to be a set of triples in the normative RDF 
spec, so your belief has some support :-)

>  I believe I can, with suitable
>agreements between sender and receiver about the encoding (as we require
>for all information transmission), I can transmit those triples with
>complete fidelity, and a receiver could reproduce them with no loss at
>all.  Q.E.D.

Hmm. You can transmit some textual encoding of the triples in a 
lossless way, yes. But you can't actually transmit the triples 
themselves. Compare sending a numeral in some text, using some 
numerical convention, vs. sending an actual number. Maybe if 
'lossless' is the sole criterion, then numbers are IRs also, since 
the literal "123"^^xsd:number seems to be an encoding of the number 
one hundred and twenty three with perfect fidelity. But I'm betting 
that this isn't what was originally intended by the IR idea.


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Received on Tuesday, 18 December 2007 01:34:53 UTC

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