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Re: Agenda for Aug 17 Telcon

From: Alexander De Leon <me@alexdeleon.name>
Date: Tue, 17 Aug 2010 17:25:38 +0200
Cc: RDB2RDF WG <public-rdb2rdf-wg@w3.org>
Message-Id: <F51DE861-A567-4620-8E3F-01F4582C485E@alexdeleon.name>
To: ashok.malhotra@oracle.com
Regrets for today.  I won't be able to attend the meeting.

Alex

On 2010-08-17, at 2:06 AM, ashok malhotra wrote:

> AGENDA W3C RDB2RDF Working Group Teleconference 2010-08-17 -----------------------------------------------------------------
> Tuesday, 17 August *16:00-17:00 UTC* Local time: http://www.timeanddate.com/worldclock/fixedtime.html?month=07&day=20&year=2010&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: Ashok
> 
> 0. Scribe assignment
> 
> 1. Admin PROPOSAL: Accept the minutes of last meeting, see http://www.w3.org/2010/08/10-rdb2rdf-minutes.html
> 
> 2. Continue discussion on comments on SQL-based approach from Richard Cyganiak
> - http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Aug/0004.html
> - http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Aug/0006.html
> - http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Aug/0005.html
> 
> 3. Revised proposal from Souri
> AGENDA W3C RDB2RDF Working Group Teleconference 2010-08-10 -----------------------------------------------------------------
> Tuesday, 10 August *16:00-17:00 UTC* Local time: http://www.timeanddate.com/worldclock/fixedtime.html?month=07&day=20&year=2010&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: Ashok
> 
> 0. Scribe assignment
> 
> 1. Admin PROPOSAL: Accept the minutes of last meeting, see http://www.w3.org/2010/08/03-rdb2rdf-minutes.html
> 
> 2. Conclude discussion of Richard's comments on SQL-based approach  http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2010Aug/0004.html
> 
> 3. Revised SQL-based proposal from Souri
> http://www.w3.org/2001/sw/rdb2rdf/wiki/An_XML_Schema_for_SQL-based_RDB2RDF_Mapping_%28Revision_1%29 
> http://www.w3.org/2001/sw/rdb2rdf/wiki/Example_of_SQL-based_RDB2RDF_Mapping:_Revision_1  
> 
> Further, Souri says:
> I am still not sure about a few things, most importantly
> 
> - Regarding Comment 2.5 (Lookup Table): How can we translate a SPARQL query with FILTER involving transformed values?
> 
> Example: Consider the following SPARQL query involving a property, :transfProp, whose values are transformed, via a lookup table, into (-1) times the original value
>      (e.g., 10 in an INTEGER column, i.e., "10"^^xsd:integer in RDF, is transformed into "-10"^^xsd:integer):
> 
>      SELECT ?x ?y WHERE {?x  :transfProp ?v1 . ?y   :transfProp  ?v2 . FILTER (?v1 > ?v2)}
>       How can SQL know, without having the lookup table somehow specified (in a CASE statement or something equivalent), how to evaluate the FILTER clause?
> 
> 4. Discussion on next steps for SQL-based approach.
> 
> 5. AOB
> 
> 4. Discussion on next steps for SQL-based approach.
> 
> 5. AOB
> -- 
> All the best, Ashok
> 
Received on Tuesday, 17 August 2010 15:26:15 GMT

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