W3C home > Mailing lists > Public > www-rdf-interest@w3.org > April 2002

RE: Disambiguation; keeping the "U" in "URI"

From: Bill de hÓra <dehora@eircom.net>
Date: Thu, 25 Apr 2002 00:53:16 +0100
To: "'Danny Ayers'" <danny666@virgilio.it>, <msabin@interx.com>, <www-rdf-interest@w3.org>
Message-ID: <000201c1ebeb$350f94a0$887ba8c0@mitchum>
 
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


> -----Original Message-----
> From: www-rdf-interest-request@w3.org 
> [mailto:www-rdf-interest-request@w3.org] On Behalf Of Danny Ayers
>
> What is possible in practice is to use metadata to remove 
> ambiguity relating to assertions that use URIs, by reference 
> to humanly agreed definitions which have unique labels, e.g.
> 
> http://purl.org/dc/elements/1.1/#Creator
> 
> This refers to "the name of the person or organization 
> primarily responsible for creating the intellectual content" 
> of something, so if I state that
> 
> http://www.markbaker.ca/index.html dc:Creator 
> http://www.markbaker.ca/index.html
> 
> then it can inferred that one of these is a person or 
> organisation and the other something with intellectual 
> content. No conflict.

There may be a conflict. The assertion is self contained and
sensible, but how do you merge that graph with this one:

http://www.markbaker.ca/index.html urn:prop34 "472920"

Is this about the page or the person?

> I reckon it's counting angels [1] to try and sort the precise 
> nature of a URI out, when mechanisms exist that allow us to 
> use the things.

Somehow this has to be sorted out if RDF is going to claim any
value in merging datasets without the inference engines doing weird
stuff. Sense doesn't allows follow from consistency. One way to do
this is to embed the meanings of properties in your RDF code,
either directly or via an inference mechanism that sucks in RDF
schemas and follows what's laid down in the model theory. I think
it would have been nice to be able to do straight matching on the
URIs.

Bill de hÓra
 

-----BEGIN PGP SIGNATURE-----
Version: PGP 7.0.4

iQA/AwUBPMdFauaWiFwg2CH4EQL3bACgjTjg3TKa29DbnlnISkhMBpfiMsUAoKc3
JEAOA5wt+Byg+OQSDg0VRFo/
=BJRz
-----END PGP SIGNATURE-----
Received on Wednesday, 24 April 2002 20:00:00 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:51:53 GMT