W3C home > Mailing lists > Public > uri@w3.org > April 2002

RE: silly question about rdf:about

From: Graham Klyne <GK@NineByNine.org>
Date: Fri, 12 Apr 2002 17:55:48 +0100
Message-Id: <5.1.0.14.2.20020412173845.044ae2d0@joy.songbird.com>
To: <LMM@acm.org>
Cc: "'Joshua Allen'" <joshuaa@microsoft.com>, <uri@w3.org>
At 08:22 AM 4/12/02 -0700, Larry Masinter wrote:
> > But, and this is where I get uncomfortable, to perform such inference
>one
> > needs to look _inside_ the URI syntax, which seems to fly in the face
>of
> > universality/uniformity of URIs used in this way.
>
>You have to look inside the URI to decide that
>   http://www.NineByNine.org is the same as http://www.ninebynine.org.

Sure.  And that's not necessarily an inference I'd want to hardwire into an 
inference engine core.  (And I'm sure this will cause me a few problems 
before I'm done with it all.)

Based on:
   :p1 a :Person; :homePage <http://www.NineByNine.org>
and
   :p2 a :Person; :homePage <http://www.ninebynine.org>
alone, I'd be hard pushed to conclude :p1 and :p2 both denote the same person.

And then there's:
   :p2 a :Person; :homePage <http://www.%6eineby%6eine.org>
where does one draw the line?

Now, if the web page contained embedded RDF something like:
   <> daml:equivalent <http://wWw.NiNeByNiNe.OrG>
I _think_ I could then conclude that the homepage three URIs were 
equivalent:  the ones used to retrieve the page both being equivalent to 
the one named in the page.  In this way, equivalence of :p1 and :p2 becomes 
inferrable through mediation of the retrieval mechanism, which legitimately 
interprets the URI structure.

#g
--

>urn:tdb:1998:http://LaRrY.MaSiNtEr.NeT

Who's that?-)


-------------------
Graham Klyne
<GK@NineByNine.org>
Received on Friday, 12 April 2002 13:21:40 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Thursday, 13 January 2011 12:15:30 GMT