<juansequeda> yes, a liitle late

<Ashok> ok

<juansequeda> just settling in

<betehess> a/Alexandre/Alexandre/

<scribe> scribenick: ericP

1. Admin + PROPOSAL: Accept the minutes of last meeting, see http://www.w3.org/2011/03/15-rdb2rdf-minutes.html

<betehess> http://www.w3.org/mid/82AD6EAF-514D-4950-A61E-5FF2F56106A7@deri.org

<cygri> agenda is here: http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2011Mar/0091.html

PROPOSED: accept http://www.w3.org/mid/82AD6EAF-514D-4950-A61E-5FF2F56106A7@deri.org as a record of the Mar 15 meeting

APPROVED

Ashok: any open actions?

cygri: i have some which don't block publication

Ashok: what about Ted's action on blank nodes?
... [noting that Ted is not present]

investigating open issues

<cygri> ISSUE-10?

<trackbot> ISSUE-10 -- Hash vs Slash -- open

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/issues/10

<scribe> closed

issues 18, 19, 20: re-use, query as a subquyer, predicate/object refer to join table

Ashok: David are these showstoppers?

dmcneil: they are important to my organization (we treat them as extensions), but they shouldn't hold up publication

issue-26?

<trackbot> ISSUE-26 -- Producing triples in named graphs and the default graph -- open

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/issues/26

Souri: i've modified r2rml to include clarifications
... s/unnamed graph/default graph/g'd
... gen'd triples can go arbitrarily to default graph, some named graph, or both

action-111?

<trackbot> ACTION-111 -- Souripriya Das to clarify that with use of (newly introduced) rr:defaultGraph value for rr:graph property of a PredicateObjectMap, we now allow triples to be produced either in the default graph, or a set of named graphs, or the default graph as well as a set of named graphs -- due 2011-03-26 -- OPEN

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/111

<scribe> CLOSED

action-26?

<trackbot> ACTION-26 -- Michael Hausenblas to create F2F Wiki page -- due 2010-03-05 -- CLOSED

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/26

<scribe> CLOSED

issue-27

issue-27?

<trackbot> ISSUE-27 -- NULL graphColumn value producing triples in an unnamed graph -- open

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/issues/27

dmcneil: i think the s/unnamed graph/default graph/g resolves this

<scribe> CLOSED

issue-28?

<trackbot> ISSUE-28 -- Clarify whether blank nodes are equivalent based on their identifier -- pending review

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/issues/28

Ashok: [noting cygri's email about equivalent bnodes]

<Ashok> http://www.w3.org/2001/sw/rdb2rdf/track/issues/28

<dmcneil> +q

cygri: i believe r2rml section 4 discussing the scope of bnodes address this
... would like feedback from e.g. PatH

Ashok: propose to publish, and solicit feedback from PatH afterwards

ISSUE-28 still pending review

<Ashok> Issue 28 is marked PENDING REVIEW ... keep this status

dmcneil: two triple maps producing the same labeled bnode in the same graph reference the same bnode

cygri: i had taken the path of saying that bnodes were the same unless the spec said they were distinct

<betehess> someone has a link to the definition of blank node equality?

cygri: if we're ok with last-minute fixes, i can tweak this now, or after publication

<Souri> +1 to Richard fixing the bNode text today

PROPOSED: cygri tweaks bnode label scope text for publication without further review from WG

APPROVED

issue-29?

<trackbot> ISSUE-29 -- Require blank node and IRI identifier expressions to produce strings -- open

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/issues/29

<Ashok> http://www.w3.org/2001/sw/rdb2rdf/track/issues/29

Ashok: i recall discussing this a couple weeks ago. what came out of it?

ericP: [SQL casting to strings]
... have app-specific length limits

Ashok: i think those limits are large enough to be ignorable

<cygri> Ashok: can casting produce chars that are not allowed in IRIs?

dmcneil: not closed in my mind
... but we can publish

issue-30?

<trackbot> ISSUE-30 -- Different blank node identifier than was defined in mapping -- open

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/issues/30

dmcneil: addressed by latest text in r2rml section 4

issue-33?

<trackbot> ISSUE-33 -- How can rr:template be used in an ObjectMapClass to produce IRI's or Strings -- raised

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/issues/33

dmcneil: if you use templates to produce an object, is that an IRI or a string?

Souri: templates in objectmaps default to a plain literal (unless you specify that it's an IRI)
... so in your issue example, it will be treated as a string

dmcneil: it seems rr:TermType and rr:DataType are only allowed to come from a column
... ergo precludes coming from a template
... refering to 3.6.1.3…

cygri: separate sections cover the SubjectMap and ObjectMap
... it's all well defined in the SubjectMap
... the ObjectMap is a bit different

Souri: i think we need to fix this

cygri: points to a deeper issue; lots of duplication in the text
... these properties can appear in different positions and do pretty much the same thing
... could we define all of these properties once in the most flexible way (i.e. as they'd be use in an ObjectMap)
... then add restrictions for e.g. PredicateMap not allowing [literals or bnodes]

+1 to cygri's proposed factoring

Souri: need a "common properties"

<dmcneil> +1 to refactoring

cygri: needs to wait 'till after pub

<cygri> 3.6.1.3

<Souri> ACTION: Souri to edit the restrictions in sec 3.6.1.3 and 3.6.1.4 to include rr:template as well [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action01]

<trackbot> Created ACTION-112 - Edit the restrictions in sec 3.6.1.3 and 3.6.1.4 to include rr:template as well [on Souripriya Das - due 2011-03-29].

Ashok: two issues remain open
... neither blocks publication

publication

<cygri> http://www.w3.org/2001/sw/rdb2rdf/r2rml/#introduction

cygri: additional editorial TODO:

<dmcneil> +q

cygri: intro needs to be reworded to reflect the existence of the DM

<dmcneil> +1 to formally recording all the issues

<betehess> +1 to use links to the tracker

<soeren> +q

cygri: propose that we copy around ~7 issues from the spec to tracker

<Souri> @@Issue: The use of a "convention over configuration" approach has been proposed, where a mapping is not expressed completely, but rather as a delta from the default mapping. In other words, only those parts that one wants to be different from the default mapping have to be written down in the mapping file.

<scribe> ACTION: cygri to copy around ~7 issues from the spec to tracker [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action02]

<trackbot> Created ACTION-113 - Copy around ~7 issues from the spec to tracker [on Richard Cyganiak - due 2011-03-29].

<Souri> @@Issue: As currently defined, the output of an R2RML mapping is an RDF dataset that contains triples reflecting the records in the database. The output is thus on the "instance level". A feature under discussion is the additional generation of an RDF Schema or OWL Ontology that reflects the constraints and valid inferences over the classes and properties in the generated dataset. This output would be on the "terminology level".

dmcneil: +1 to cygri. also good to record issue resolution in the issue tracker
... noticed that 3.9.1.2 has moved the '.' to inside the "{}"s

Souri: the goal is to be able to string replace them if we don't parse them

dmcneil: seems just as esoteric with the '.' inside

Souri: the "alias." is a unit

<dmcneil> -q

Souri: happy to update if we acquire wisdom

dmcneil: OK

soeren: the "owner" is mentioned throughout the document
... propose an issue for this
... i think this is Oracle-specific. called "database" and MySQL and @@1 in DB2

<Ashok> Souri: In Orac;le it is called "owner" or "schema"

Souri: yeah, we can have a glossary connecting these terms to outside use

soeren: could add paragraph for SQL concepts to 1.1

<cygri> ACTION: cygri to update paragraph in the introduction that talks about the direct mapping spec [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action03]

<trackbot> Created ACTION-114 - Update paragraph in the introduction that talks about the direct mapping spec [on Richard Cyganiak - due 2011-03-29].

Souri: i think we have very few refs to "owner" now

<scribe> ACTION: soeren to create an issue addressing vendor-specific names like "owner" [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action04]

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

<scribe> ACTION: saueren to create an issue addressing vendor-specific names like "owner" [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action05]

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

<cygri> saure

<Souri> sauer

<cygri> sauer

<soeren> sauer

<scribe> ACTION: sauer to create an issue addressing vendor-specific names like "owner" [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action06]

<trackbot> Created ACTION-115 - Create an issue addressing vendor-specific names like "owner" [on Sören Auer - due 2011-03-29].

cygri: SQL spec defines terminology for e.g. "catalog" and "schema"
... catalog*/schema*
... i think we should use those terms

+1

if we're going to make readers learn something, let's make them learn standard terms

<betehess> no

<betehess> Alexandre: the Webmaster is ok to publish on Thursday Mar 24

Ashok: what's the status of the DM?

ericP: it lacks the polish of the DM
... i'm content to let it go as it is

<juansequeda> +1 to publish both

<ivan> +1 to publish them together

<cygri> +1 to publish both

<betehess> +1

+1

<ivan> yay!

<Seema> +1 to publish them together

PROPOSED: publish R2RML spec after cygri's bnode scope text (expected EOB 22 March), update paragraph introducing direct mapping spec and souri's updates per ACTION-112 and no further WG review

<cygri> ACTION-112,113,114

PROPOSED: publish R2RML spec after cygri's updates per ACTION-113 and ACTION-114 and souri's updates per ACTION-112 and no further WG review

<ivan> +1

<ivan> -1

APPROVED

PROPOSED: publish DM as is

<cygri> Souri, ivan, me too

+1

<cygri> +1

<nunolopes> +1

<ivan> +1

APPROVED

<juansequeda> +1

<Souri> +1

<scribe> ACTION: betehess to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action07]

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

<scribe> ACTION: alexandre to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action08]

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

<scribe> ACTION: bertails to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action09]

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

<cygri> try abertai5

<scribe> ACTION: bertails to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action10]

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

<scribe> ACTION: bertails to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action11]

<Ashok> rsagent, create minutes

tx

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

oh weak

whatever

<scribe> ACTION: bertails to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action12]

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

<scribe> ACTION: bertails to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action13]

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

<ted> trackbot, status?

<ted> action-1?

<trackbot> ACTION-1 -- Michael Hausenblas to create a section in the Wiki for ISSUE-2 -- due 2009-10-08 -- CLOSED

<trackbot> http://www.w3.org/2001/sw/rdb2rdf/track/actions/1

<ted> http://www.w3.org/2001/sw/rdb2rdf/track/users

<ted> ACTION: bertails to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action14]

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

<ted> ACTION: betehess to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action15]

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

<ted> ACTION: alex to update DM for publication on 24 March [recorded in http://www.w3.org/2011/03/22-rdb2rdf-minutes.html#action16]

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

This is scribe.perl Revision: 1.135  of Date: 2009/03/02 03:52:20  
Check for newer version at http://dev.w3.org/cvsweb/~checkout~/2002/scribe/

Guessing input format: RRSAgent_Text_Format (score 1.00)

Succeeded: s/Alexande/Alexandre/
Succeeded: s/Nuno, Alexande/Nuno, Alexandre/
Succeeded: s/Feb 15/Mar 15/
Found ScribeNick: ericP
Inferring Scribes: ericP
Default Present: Ashok_Malhotra, +1.314.394.aaaa, Alexandre, dmcneil, +3539149aabb, EricP, nunolopes, +569061aacc, cygri, soeren, ivan, +1.603.897.aadd, +575737aaee, +1.603.897.aaff, Seema, +030061aagg, MacTed, +666061aahh
Present: David_McNeill Richard Nuno Alexandre Soeren : Eric Ivan cygri nunolopes Souri Seema
Regrets: Marcelo

WARNING: No meeting title found!
You should specify the meeting title like this:
<dbooth> Meeting: Weekly Baking Club Meeting

Got date from IRC log name: 22 Mar 2011
Guessing minutes URL: http://www.w3.org/2011/03/22-rdb2rdf-minutes.html
People with action items: alex alexandre bertails betehess cygri sauer saueren soeren souri