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Re: Direct Graph and R2ML?

From: Eric Prud'hommeaux <eric@w3.org>
Date: Tue, 12 Oct 2010 10:29:19 -0400
To: Harry Halpin <hhalpin@w3.org>
Cc: RDB2RDF WG <public-rdb2rdf-wg@w3.org>
Message-ID: <20101012142918.GB29852@w3.org>
* Harry Halpin <hhalpin@w3.org> [2010-10-12 14:44+0100]
> After looking through R2ML, I'm wondering if the default graph approach
> combined with R2ML could help eliminate some "boiler-plate" - i.e. by
> providing a default template for moving a DB into RDF, then R2ML can focus
> on extending that default mapping by over-riding it. That might solve some
> of the readability problems of R2ML and the concerns about direct mapping
> use-cases and possible spec divergence if we publish two different specs
> for R2ML and dthe irect graph.
> 
>  And of course, R2ML should have someway to 'turn off default mapping via
> the direct graph' entirely. And folks who are more interested in just
> getting the direct graph could then just use a few command-line
> parameters rather than learning R2ML. So in this fashion, we can serve
> all the use-cases
> 
>   If the editors of both drafts are OK with it, I'd be interested in seeing
> if they can get together and add some examples and English (i.e. not
> formal semantics) and see how a "default mapping" can be a default use of
> R2ML.

I propose we start out by seeing if we agree on the effect of the
direct mapping. I invite all to look at
  http://www.w3.org/2010/10/12-Direct-Tests
and pick apart the logic behind the modeling choices.

>    Also, due to travel hiccups (I'm returning from IIW today), I am at
> risk for the telecon, as my wifi connection on the train may be too
> weak to let me particiapte. But will try!
> 
>        cheers,
>         harry
> 
> 
> 
> > On 11/10/2010 23:29, Souri Das wrote:
> >> Here is the link to the latest version:
> >> http://www.w3.org/2001/sw/rdb2rdf/r2rml/Overview.html
> >>
> >> CVS History (Change log):
> >> $Log: Overview.html,v $
> >> Revision 1.4  2010/10/11 21:21:21  sdas2
> >> added inline examples for all the properties -- Souri/Seema
> >>
> >> Revision 1.3  2010/10/11 19:00:12  sdas2
> >> simplified destination graph related properties and added TermMapFlags
> >> to replace isRDFTypeProperty and isComputedProperty and allow
> >> generalized flags -- Seema and Souri
> >>
> >> Revision 1.2  2010/10/06 13:59:19  sdas2
> >> renamed Table2TriplesMap to TriplesMap
> >>
> >> Revision 1.1  2010/10/05 17:19:24  rcygania2
> >> Add Seema's version of R2RML draft to CVS
> >> Thanks,
> >> - Souri.
> >>
> >> Michael Hausenblas wrote:
> >>> All,
> >>>
> >>> Below the agenda for our next week's meeting. We will try to get out
> >>> the
> >>> FPWD "Relational Database to RDF Mapping Language".
> >>>
> >>> Any news from the editors?
> >>>
> >>> Cheers,
> >>>        Michael
> >>>
> >>> ---------------------------------------------------------
> >>> AGENDA Teleconference
> >>> W3C RDB2RDF Working Group telephone conference 2010-10-12
> >>> ----------------------------------------------------------
> >>> Tuesday, 12 October *16:00-17:00 UTC* Local time:
> >>> http://www.timeanddate.com/worldclock/fixedtime.html?month=10&day=12&year=20
> >>> 10&hour=16&min=00&sec=0
> >>> Bridge US: +1-617-761-6200 (Zakim) Conference code : 7322733# (spells
> >>> "RDB2RDF")
> >>> Duration : 60 minutes
> >>> -------------------------------------------------------------------
> >>> IRC channel : #RDB2RDF on irc.w3.org:6665 W3C IRC Web Client :
> >>> http://www.w3.org/2001/01/cgi-irc
> >>> Zakim information :http://www.w3.org/2002/01/UsingZakim
> >>> Zakim bridge monitor :http://www.w3.org/1998/12/bridge/Zakim.html
> >>> Zakim IRC bot :http://www.w3.org/2001/12/zakim-irc-bot.html
> >>> -------------------------------------------------------------------
> >>>
> >>> Chair: Michael
> >>> Scribe: Zakim, pick a victim
> >>>
> >>> 1. Admin
> >>> PROPOSAL: Accept the minutes of last meeting, see
> >>> http://www.w3.org/2010/10/05-rdb2rdf-minutes.html
> >>>
> >>> Review open actions, see
> >>> http://www.w3.org/2001/sw/rdb2rdf/track/actions/open
> >>>
> >>> 2. FPWD "Relational Database to RDF Mapping Language"
> >>> http://www.w3.org/2001/sw/rdb2rdf/r2rml/
> >>>
> >>> Comments see following threads:
> >>> http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Oct/0007.html
> >>> http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Oct/0009.html
> >>>
> >>> 3. AOB
> >>>
> >>> Cheers,
> >>>        Michael
> >>>
> >>>
> >>
> >
> >
> 
> 

-- 
-ericP
Received on Tuesday, 12 October 2010 14:29:57 UTC

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