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RE: my notes on our group discussion today on RDF Query via XQuery, in WWW-2003 BOF on RDF Query&Rules

From: <Patrick.Stickler@nokia.com>
Date: Wed, 28 May 2003 10:55:06 +0300
Message-ID: <A03E60B17132A84F9B4BB5EEDE57957B01B90E70@trebe006.europe.nokia.com>
To: <massimo@w3.org>, <bgrosof@MIT.EDU>, <www-rdf-rules@w3.org>, <eric@w3.org>, <connolly@w3.org>

> -----Original Message-----
> From: ext Massimo Marchiori [mailto:massimo@w3.org]
> Sent: 27 May, 2003 16:15
> To: Stickler Patrick (NMP/Tampere); bgrosof@MIT.EDU;
> www-rdf-rules@w3.org; eric@w3.org; connolly@w3.org
> Subject: RE: my notes on our group discussion today on RDF Query via
> XQuery, in WWW-2003 BOF on RDF Query&Rules
> > > So, syntax is 
> > > bad if used as a replacement for its other missing 
> > > theoretical counterparts. 
> > > Otherwhise, it is just a convenient way to express semantics. 
> > 
> > Precisely. And I was of course at the disadvantage of not having
> > been present during the BOF and other discussions, but privious
> > proposals that I've seen regarding using XQuery for RDF have
> > amounted to operating directly on the RDF/XML.
> > 
> > So I got (apparently needlessly) concerned.
> Patrick, I'm glad we are both on the same line. In fact, as 
> you say, so far
> previous proposals didn't mention models at all (and, kinda 
> stressed the 
> "syntax" component.... even in the title...!;)
> They were probably giving the model correspondance as 
> implicit, but yes,
> there's the need to be clear it's all about models after all.
> And, I hope some people will find this challenging and 
> entertaining enough to start considering this hybrid approach 
> to RDF-Query :)
> So, both on the semantic side, with syntax as our fork! ;)
> -M


I'm still a big fan of querying RDF with RDF
(c.f. http://sw.nokia.com/RDFQ.html) but I think
there is merit in looking at a fully or mostly
compatible variant of XQuery that is applicable
to RDF knowledge bases; for the benefit of folks
who work alot with both XML and RDF.

The solution may be as simple as positing an XML
syntax that precisely corresponds the abstract RDF
graph syntax, which may also meet the needs of 
those wanting a canonical RDF/XML serialization.

Anyway, I look forward to seeing what develops...



Patrick Stickler, Nokia/Finland, (+358 40) 801 9690, patrick.stickler@nokia.com
Received on Wednesday, 28 May 2003 05:12:37 UTC

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