W3C home > Mailing lists > Public > www-rdf-interest@w3.org > March 2004

RE: a bnode URI scheme?!

From: Geoff Chappell <gchappell@intellidimension.com>
Date: Mon, 15 Mar 2004 15:04:46 -0500
To: "'Andrew Newman'" <andrew@tucanatech.com>
Cc: <www-rdf-interest@w3.org>
Message-ID: <007a01c40ac8$c41da2b0$0100a8c0@gsclaptop>



> -----Original Message-----
> From: www-rdf-interest-request@w3.org [mailto:www-rdf-interest-
> request@w3.org] On Behalf Of Andrew Newman
> Sent: Monday, March 15, 2004 2:28 AM
> To: www-rdf-interest@w3.org
> Subject: Re: a bnode URI scheme?!
> 
> 
> Geoff Chappell wrote:
> > RDF Gateway has a merge method on its datasource object that allows
you
> > to merge one set of triples with another, removing redundant triples
in
> > the process. For method docs w/example see:
> >
> >
http://www.intellidimension.com/pages/rdfgateway/reference/script/dataso
> > urce_merge.rsp
> >
> > It's intended to deal with the problem you describe below, more than
it
> > is to reduce a graph to lean form.
> >
> 
> Isn't that nearly always going to be wrong?  I mean just because an
> bnode has the same properties (say first name and last name or even
just
> first name) doesn't mean they are the same thing.

How could it be wrong? 

If you have two statements:

:_a <b> <c>
:_b <b> <c>

You have no way of knowing if _a and _b are the same as or different
from each other, nor can you ever know (since a bnode has no globally
usable name, you can never learn more facts about either). 

-Geoff
Received on Monday, 15 March 2004 15:09:45 UTC

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