- From: Alexandre Bertails <bertails@w3.org>
- Date: Tue, 01 Mar 2011 18:38:09 -0500
- To: Juan Sequeda <juanfederico@gmail.com>
- Cc: Ivan Herman <ivan@w3.org>, Michael Hausenblas <michael.hausenblas@deri.org>, W3C RDB2RDF WG <public-rdb2rdf-wg@w3.org>
On Tue, 2011-03-01 at 11:56 -0300, Juan Sequeda wrote: > Ivan, > > > That is what I'm planning to do :) You may need more type constraints in order to have the required conditions in your proof. If you find anything like that -- and I'm sure there are such missing things -- I'll be happy to add them. Alexandre. > > Juan Sequeda > +1-575-SEQ-UEDA > www.juansequeda.com > > > On Tue, Mar 1, 2011 at 11:51 AM, Ivan Herman <ivan@w3.org> wrote: > Juan, > > just wondering... what would be the best way of proving that > the two formalisms are equivalent? To be more specific: do you > think you guys can make a similar service as the one of Alex > and Eric that could be used to test the output of the > description? Because if so, the rest is to have clear and > heavyweight test cases... > > Ivan > > > On Mar 1, 2011, at 14:27 , Juan Sequeda wrote: > > > Hi Everbody, > > > > Marcelo and I just updated the Direct Mapping document [1]. > We finished Section 4: Direct Mapping as rules. We realized > that we were being to verbose so we simplified a lot. We also > finished the section that was missing: Generating Reference > Triples. > > > > In summary, the cases that a direct mapping should consider > are > > > > Table Triples > > > > 1) Table has a PK (single or multi) > > 2) Table does not have a PK > > > > Literal Triples > > > > 3) Table has a Pk (single or multi) > > 4) Table does not have a PK > > > > Reference triples: > > > > Given two tables: r1 and r2 > > > > 5) Table r1 has a PK (single or multi) and table r2 has a PK > (single or multi) > > 6) Table r1 has a PK (single or multi) and table r2 does not > have a PK > > 7) Table r1 does not have a PK and table r2 has a PK (single > or multi) > > 8) Table r1 does not have a PK and table r2 does not have a > PK > > > > We have other things on the agenda, so I guess we won't be > able to discuss this today. > > > > Time permitting, I'll have an implementation ready based on > the rules. > > > > Cheers > > > > [1] http://www.w3.org/2001/sw/rdb2rdf/directMapping/ > > > > Juan Sequeda > > +1-575-SEQ-UEDA > > www.juansequeda.com > > > > > > On Tue, Mar 1, 2011 at 6:13 AM, Michael Hausenblas > <michael.hausenblas@deri.org> wrote: > > > > All, > > > > Below the agenda for our today's meeting. > > > > Cheers, > > Michael > > > > --------------------------------------------------------- > > AGENDA Teleconference > > W3C RDB2RDF Working Group telephone conference 2011-03-01 > > ---------------------------------------------------------- > > *17:00-18:00 UTC* > > Local time: > > > http://timeanddate.com/worldclock/fixedtime.html?month=03&day=01&year=2011&h > > our=17&min=00&sec=0 > > > > Bridge US: +1-617-761-6200 (Zakim) > > Conference code: 7322733# (spells "RDB2RDF") > > IRC channel : #RDB2RDF on irc.w3.org:6665 W3C > > > ------------------------------------------------------------------- > > > > Chair: Michael > > Scribe: Zakim, pick victim > > > > For all open actions see: > > http://www.w3.org/2001/sw/rdb2rdf/track/actions/open > > > > > > 1. Admin > > > > + PROPOSAL: Accept the minutes of last meeting, see > > http://www.w3.org/2011/02/22-rdb2rdf-minutes.html > > > > Publication of WD scheduled for 15 Mar 2011 > > > > > > 3. Direct Mapping > > (Marcelo, Eric, Juan) ACTION-98, ACTION-99, ACTION-102 > > > > http://www.w3.org/2001/sw/rdb2rdf/directMapping/ > > > > Discussion of ISSUE 14 (Many-to-many tables) > > > > > > 4. Test Cases > > (Boris) ACTION-81, ACTION-91 > > > > http://this-db-really.does-not-exist.org/ > > > > http://www.w3.org/2001/sw/rdb2rdf/wiki/TestCases > > https://dvcs.w3.org/hg/rdb2rdf-tests/ > > http://www.w3.org/2001/sw/rdb2rdf/test-cases/ > > > > > > 5. R2RML status > > (Souri, Richard, Seema) > > ACTION-83, ACTION-92, ACTION-93, ACTION-96, ACTION-97 > > > > http://www.w3.org/2001/sw/rdb2rdf/r2rml/ > > > > > > 6. AOB > > > > -- > > Dr. Michael Hausenblas, Research Fellow > > LiDRC - Linked Data Research Centre > > DERI - Digital Enterprise Research Institute > > NUIG - National University of Ireland, Galway > > Ireland, Europe > > Tel. +353 91 495730 > > http://linkeddata.deri.ie/ > > http://sw-app.org/about.html > > > > > > > > > > ---- > Ivan Herman, W3C Semantic Web Activity Lead > Home: http://www.w3.org/People/Ivan/ > mobile: +31-641044153 > PGP Key: http://www.ivan-herman.net/pgpkey.html > FOAF: http://www.ivan-herman.net/foaf.rdf > > > > > > >
Received on Tuesday, 1 March 2011 23:38:16 UTC