Re: Agenda for Aug 17 Telcon

Dear All,

Regrets for today. Unfortunately, I will not be able to attend any of
the meetings in August and September because I am giving a course (on
finite model theory) at the time of the call. I will continue working
with Juan on the semantics of the mapping language during this time.

All the best,

Marcelo

On Mon, Aug 16, 2010 at 8:06 PM, ashok malhotra
<ashok.malhotra@oracle.com> 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 15:15:35 UTC