Meetings:Telecon2012.09.26

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Wednesdays at 11am US Eastern time for 75 minutes
  17:00 Paris/Berlin/A'dam; 16:00 London)
Telephone US: +1.617.761.6200
  SIP: zakim@voip.w3.org
 Zakim code: 73394
IRC channel: #rdf-wg on irc.w3.org on port 6665
Zakim instructions:  http://www.w3.org/2001/12/zakim-irc-bot.html
RRSAgent instructions: http://www.w3.org/2002/03/RRSAgent
Scribe list: http://www.w3.org/2011/rdf-wg/wiki/Scribes


Admin

  • Chair: Guus Schreiber
  • Scribe: Fabien Gandon
  • Alternate: Gavin Carothers


Minutes of last meeting

PROPOSED to accept the minutes of the 19 September:

 http://www.w3.org/2012/09/19-rdf-wg-irc.txt

No formatted version yet which should go here:

   http://www.w3.org/2011/rdf-wg/meeting/2012-09-19


Review of action items

Telecon time

See request from W3C Management and responses on the list:

 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0213.html

Chair's baseline: no change unless something can be done w/o problems for active WG members.

Next meeting

  • Next telecon: 03 October 2012


Next FTF

Mon-Tue 29-30 Oct, Lyon, France, co-located with TPAC.

Info and registration information:

 http://www.w3.org/2012/10/TPAC/

See also Sandro's recommendation for attending other meetings during TPAC:

 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Jul/0039.html

REMINDER: Please remember to register your intent on the F2F3 and, if attending in person, register and pay for TPAC.

Provenance Constraints Review

Progress on LC reviews (actions 184+185)

 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Jul/0043.html
 http://www.w3.org/blog/SW/2012/09/12/last-call-constraints-of-the-provenance-data-model/

Turtle

Short discussion on status of handling comments.

JSON-LD

Issue list:

 https://github.com/json-ld/json-ld.org/issues?milestone=2&page=1&state=open

Action 187 done by Gregg:

 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0209.html

Planning

Graphs

Charter constraints

  • WG charter expires 1 Feb 2013
  • Extension in all likelihood only possible if by that time RDF Concepts, RDF Semantics and Trig (read: named-graph syntax proposal) are in LC
  • What can we realistically achieve in the next three months?

Dataset semantics

Two main threads:

 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0212.html
 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0210.html

Minimal semantics proposal from Antoine:

 http://www.w3.org/2011/rdf-wg/wiki/TF-Graphs/Minimal-dataset-semantics

Alternative proposal by Peter:

 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0151.html

Excerpt from this message:

  1. No change to the semantics for RDF graphs.
  2. Entailment between RDF datasets D1=<G1,N1> and D2=<G2,N2> is defined as
    • a) G1 entails G2
    • b) for each <n,g> in N2 there is some <n,g'> in N2 such that g' entails g, or if there is no such <n,g'> then the empty RDF graph entails g

Phrased slightly differently by Pat:

 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0220.html

Does this block use cases?

AOB