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Re: regarding rdfms-identity-anon-resources

From: Brian McBride <bwm@hplb.hpl.hp.com>
Date: Sat, 10 Mar 2001 10:39:38 +0000
Message-ID: <3AAA046A.3BA2A1AE@hplb.hpl.hp.com>
To: Jonathan Borden <jborden@mediaone.net>
CC: www-rdf-comments@w3.org
Jonathan,

I'm not sure exactly what it is you are suggesting.  Can you provide
some
concrete examples of the application of this suggestion, outlining the
benefits that it brings.

I have some more abstract questions that I'm wary of as abstract
discussions
on this topic don't always seem to clarify my understanding.  However,
they might give you some idea of what it is I'm not understanding.

  o do you agree that an anonymous resource can be thought of as an
    an existentially qualified variable?

  o does the identifier you propose identify the variable, or something
    that is bound to the variable?

  o does this suggestion work when the variable is represented in N3 and
    there is no XML representation for it?

  o are you suggesting that any resource identified by an XPointer is an
    anonymous resource?

Brian


Jonathan Borden wrote:
> 
> Regarding anon resources. At the RDF IG F2F I made the point that one can
> use XPointers to identify 'anonymous' resources using three forms (of
> XPointer)
> 
> 1) raw name - ID
> 2) child sequence e.g. /1/2/3
> 3) full xpointer e.g. #xpointer(//xxx:foo[@name='bar'])
> 
> TimBL noted that it is useful to know when a resource is anonymous. I
> pointed out that assuming child seqs or full xpointers are used that the
> lexical space of a URI reference naming anonymous resource is distinct (e.g.
> test for '/' or 'xpointer(' immediately following '#'. Hence it will be
> known that the URI is an 'address' not a 'name'.
> 
> Jonathan Borden
> The Open Healthcare Group
> http://www.openhealth.org
Received on Saturday, 10 March 2001 05:38:40 GMT

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