RDB2RDF Working Group Teleconference -- 11 Jan 2011

<trackbot> Date: 11 January 2011

<nyoung> Hi, I'm the (314) number

<nyoung> Nate Young from Revelytix

<ivan> http://www.w3.org/2000/09/dbwg/details?group=43889

<Angela> could you cut off ??P22 i had an IP phone call and had a blue death...I think my call is pending and i can not dial in again...

<mhausenblas> scribenick: MacTed

Admin

Scanlon: new from Revelytix, converting their tool to use R2RML

<mhausenblas> + PROPOSAL: Accept the minutes of last meeting, see http://www.w3.org/2010/12/14-rdb2rdf-minutes.html

<betehess> +1

<mhausenblas> http://www.w3.org/2001/sw/rdb2rdf/wiki/Implementations

$dayjob intrudes, I'm sorry, I have to abdicate scribe

<mhausenblas> scribenick: Ashok

<scribe> scribenick: Ashok

Ashok: What is process to move drafts to next stage?

<mhausenblas> Michael: Ashok means moving to CR

Ivan: When WG solves all the issues we can issue a Last Call
... we will get a bunch of comments

<mhausenblas> http://www.w3.org/2009/08/rdb2rdf-charter

Ivan: we need to respond formally to these and then move to CR

<betehess> related question: do we plan to move both r2ml and the direct mapping to CR at the same time?

Michael: We will need at least 2 conforming implementations ... so we need to focus on test suites, test cases
... It would be good to move both drafts to CR together but that's not necessary

Ivan: It would be better to advance the 2 documents in step

Review of Test Cases - Boris

<mhausenblas> ACTION-91?

<mhausenblas> hmm, why does tracker not understand this

Boris: We changed the methodology of the test cases on the last telcon. We will send test cases in email

<mhausenblas> ACTION-91?

<trackbot> ACTION-91 -- Michael Hausenblas to move accepted TC from wiki to http://www.w3.org/2001/sw/rdb2rdf/test-cases/ -- due 2011-01-11 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/91

Michael: You need CVS access ... send mail to Ivan

<mhausenblas> ACTION-81?

<trackbot> ACTION-81 -- Juan Sequeda to and Eric to draft Direct Mapping TC -- due 2011-01-11 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/81

We will continue with test cases by mail

<betehess> [/me recalls we can now use Mercurial instead of CVS]

What's Mercurial?

R2RML Status

<ivan> ACTION-83?

<trackbot> ACTION-83 -- Ashok Malhotra to review R2RML ED -- due 2011-01-11 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/83

Souri: We have been on vacation

<Seema> couldn't agree more with Soury

<betehess> A Decentralized Versionning Control System

<ivan> ACTION-84?

<trackbot> ACTION-84 -- Michael Hausenblas to ask Lee if he can review R2RML ED -- due 2011-01-11 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/84

<mhausenblas> Ashok, the right way to do VC ... see http://hginit.com

Souri: We have some comments ... we will look at these and report back next week

Richard: Similar story at my end

<ivan> ACTION-86?

<trackbot> ACTION-86 -- Ivan Herman to review the R2RML ED till end of 01/2011 -- due 2010-12-14 -- CLOSED

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/86

<ivan> ACTION-87?

<trackbot> ACTION-87 -- Michael Hausenblas to nudge Richard C to address the R2RML - DM connection -- due 2011-01-11 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/87

Ashok: Are we creating formal issues?

<mhausenblas> http://www.w3.org/2001/sw/rdb2rdf/track/issues/

Michael: Please issue tracker above
... you can name the issues for convenience

Ashok: We can then schedule them for discussion on telcons

Ivan completed ACTION-86 ... action closed

<mhausenblas> close ACTION-87

<trackbot> ACTION-87 Nudge Richard C to address the R2RML - DM connection closed

<mhausenblas> ACTION: Richard to address the R2RML - DM connection [recorded in http://www.w3.org/2011/01/11-rdb2rdf-minutes.html#action01]

<trackbot> Created ACTION-92 - Address the R2RML - DM connection [on Richard Cyganiak - due 2011-01-18].

<ivan> ACTION-85?

<trackbot> ACTION-85 -- Ted Thibodeau to review Direct Mapping ED -- due 2011-01-11 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/85

Direct Mapping Status

<mhausenblas> ACTION-85?

<trackbot> ACTION-85 -- Ted Thibodeau to review Direct Mapping ED -- due 2011-01-11 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/85

<mhausenblas> MacTed are you on?

Michael: Editors, any comments

Marcelo: I, too, have been on vacation
... I will add Datalog semantics this months

<mhausenblas> http://www.w3.org/2001/sw/rdb2rdf/directMapping/

Ivan: We have a document with agreed upon English semantics ... and Scala semantics
... plan is to complete the document with Datalog semantics

Eric: I want to fix the Scala semantics a bit. The set notation semantics have been verified by M. Stonebraker and others

Ivan: How will the to documents be harmonized ... for example the URI generation algorithm

<betehess> it's not really a "Scala semantics" but that's ok

Richard: If we had an empty R2RML document that would be the Direct Mapping
... we have not gotten it to that direction
... It's a tricky issue. Will require some thought. Need some creative solutions.
... If you don't say something about a table is it just not mapped or is the default mapping used?

Souri: I will look at it ... I will create some points for discussion next week
... question is what is the universe ... what about tables not specified ... or perhaps if only parts of Table are mapped

<mhausenblas> ACTION: Souri to identify not-mapping vs. default-mapping issues in R2RML/DM (Wiki or via mail) [recorded in http://www.w3.org/2011/01/11-rdb2rdf-minutes.html#action02]

<trackbot> Sorry, couldn't find user - Souri

<Souri> sdas2

<mhausenblas> ACTION: sdas2 to identify not-mapping vs. default-mapping issues in R2RML/DM (Wiki or via mail) [recorded in http://www.w3.org/2011/01/11-rdb2rdf-minutes.html#action03]

<trackbot> Created ACTION-93 - Identify not-mapping vs. default-mapping issues in R2RML/DM (Wiki or via mail) [on Souripriya Das - due 2011-01-18].

Mapping to Ontology

<mhausenblas> ACTION-88?

<trackbot> ACTION-88 -- Souripriya Das to adds issues to http://www.w3.org/2001/sw/rdb2rdf/track/issues/ , one for Ashok's concern and one re each of the open, inline-Issues in http://www.w3.org/2001/sw/rdb2rdf/r2rml/ -- due 2011-01-18 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/88

Discussion of mapping to ontology

<Zakim> ericP, you wanted to talk about graph patterns which fit an OWL ontology or RDF schema

Ivan: Should we have a primer for R2RML?
... then the mapping to an Ontology could go into the primer

<betehess> [[

<betehess> <betehess> ericP, boris, https://dvcs.w3.org/hg/rdb2rdf-tests/ is alive

<betehess> <betehess> you can add whatever you want in it

<betehess> <betehess> all the WG has write access to it, using W3C web credentials

<betehess> ]]

Michael: A primer would be good to have .... we could add principles for Linked Data mapping .... good practices

Linked Data

<mhausenblas> ACTION-89?

<trackbot> ACTION-89 -- Michael Hausenblas to create a Linked Data issue and draft proposal to address -- due 2011-01-18 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/89

Michael: I did not do my action yet

AOB

<Souri> what is the time frame?

<ericP> +½ to famous, +1 to rich

Discussion on writing a primer ... you can write it and then publish it as a book

rrrsagent, make logs public

<mhausenblas> http://www.w3.org/2001/sw/rdb2rdf/wiki/Semtech_2011_Proposal

<mhausenblas> Michael: thanks a lot to Juan for all the hard work re the SemTech proposal

Ivan: R2RML has changed quite a bit ... we should re-publish

<betehess> bye

<mhausenblas> [adjourned]

Michael: Let's try for new WD by the end of January

<betehess> WD for which document?

<mhausenblas> Ashok, assuming you gonna send out the minutes?

<mhausenblas> thanks a lot for scribing, Ashok!

<betehess> mhausenblas, I'm ok to scribe next week

<mhausenblas> thanks, betehess

- DRAFT -

RDB2RDF Working Group Teleconference

11 Jan 2011

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