13:57:38 RRSAgent has joined #sparql 13:57:38 logging to http://www.w3.org/2010/04/20-sparql-irc 13:57:40 RRSAgent, make logs world 13:57:40 Zakim has joined #sparql 13:57:42 Zakim, this will be 77277 13:57:42 ok, trackbot; I see SW_(SPARQL)10:00AM scheduled to start in 3 minutes 13:57:43 Meeting: SPARQL Working Group Teleconference 13:57:43 Date: 20 April 2010 13:57:53 Agenda: http://www.w3.org/2009/sparql/wiki/Agenda-2010-04-20 13:58:09 SW_(SPARQL)10:00AM has now started 13:58:16 + +03539149aaaa 13:58:56 Zakim, aaaa is me 13:58:56 +AxelPolleres; got it 13:59:01 + +1.518.276.aabb 13:59:02 heh 13:59:06 + +0186528aacc 13:59:07 Zakim, aabb is me 13:59:08 +kasei; got it 13:59:21 Zakim, +0186528aacc is me 13:59:21 +bglimm; got it 13:59:31 +??P14 13:59:34 +Lee_Feigenbaum 13:59:35 Zakim, why don't you recognize me any more? 13:59:35 I don't understand your question, bglimm. 13:59:39 zakim, ??P14 is me 13:59:39 +AndyS1; got it 13:59:51 zakim, mute me please 13:59:51 Lee_Feigenbaum should now be muted 13:59:59 + +49.238.aadd 14:00:06 + +0208439aaee 14:00:06 Souri has joined #sparql 14:00:11 Chair: AxelPolleres 14:00:16 - +0208439aaee 14:00:27 SteveH has joined #sparql 14:00:28 zakim, dial ivan-voip 14:00:28 ok, ivan; the call is being made 14:00:28 Zakim, aadd is me 14:00:29 trackbot, start meeting 14:00:30 +OlivierCorby; got it 14:00:30 +Ivan 14:00:31 RRSAgent, make logs world 14:00:33 Zakim, this will be 77277 14:00:33 ok, trackbot; I see SW_(SPARQL)10:00AM scheduled to start now 14:00:34 Meeting: SPARQL Working Group Teleconference 14:00:34 Date: 20 April 2010 14:00:35 Zakim, mute me 14:00:35 sorry, bglimm, I don't know what conference this is 14:00:41 zakim, this is SPARQl 14:00:41 ok, LeeF; that matches SW_(SPARQL)10:00AM 14:00:45 zakim, mute bglimm 14:00:45 bglimm should now be muted 14:00:46 Zakim, this is SPARQL 14:00:47 bglimm, this was already SW_(SPARQL)10:00AM 14:00:49 ok, bglimm; that matches SW_(SPARQL)10:00AM 14:00:50 chimezie has joined #sparql 14:00:56 Zakim, mute me 14:00:56 bglimm was already muted, bglimm 14:01:10 Zakim, what is the passcode? 14:01:10 the conference code is 77277 (tel:+1.617.761.6200 tel:+33.4.89.06.34.99 tel:+44.117.370.6152), chimezie 14:01:10 chime, will you be able to scribe? 14:01:13 + +1.603.897.aagg 14:01:13 yes 14:01:30 zakim, aagg is Souri 14:01:30 +Souri; got it 14:01:43 +Chimezie_Ogbuji 14:01:45 Zakim, who's on the phone 14:01:45 I don't understand 'who's on the phone', SteveH 14:01:50 Zakim, who's on the phone? 14:01:51 On the phone I see AxelPolleres, kasei, bglimm (muted), AndyS1, Lee_Feigenbaum (muted), OlivierCorby, Ivan, +0208439aaff, Souri, Chimezie_Ogbuji 14:01:54 MattPerry has joined #sparql 14:02:08 http://www.w3.org/2009/sparql/wiki/Agenda-2010-04-20 14:02:12 Zakim, aaff is [Garlik] 14:02:12 +[Garlik]; got it 14:02:13 zakim, who's speaking? 14:02:15 zakim, AndyS1 is AndyS 14:02:15 +AndyS; got it 14:02:23 pjain has joined #SPARQL 14:02:25 loud typing 14:02:29 LeeF, listening for 10 seconds I heard sound from the following: 10 (26%), AndyS1 (53%) 14:02:29 scribe: Chimezie Ogbuji 14:02:52 http://www.w3.org/2009/sparql/meeting/2010-04-13 14:02:52 +??P25 14:03:13 zakim, ??P25 is me 14:03:13 +MattPerry; got it 14:03:15 Zakim, [Garlik] is temporarily SteveH 14:03:17 +SteveH; got it 14:03:20 PROPOSED: approve minutes at http://www.w3.org/2009/sparql/meeting/2010-04-13 14:03:33 minutes look good to me 14:03:48 RESOLVED: approve minutes at http://www.w3.org/2009/sparql/meeting/2010-04-13 14:04:15 Next meeting: 2010-04-27 @ 15:00 UK / 10:00 EST 14:04:26 my regrets for next week 14:04:34 regrets next week 14:04:36 Axel: I can scribe and chair if necessary 14:04:36 David 14:04:40 Alex did last week 14:04:46 err, not David 14:05:01 I hope to be at WWW (volcano willing) 14:05:02 Zakim, who is on the phone? 14:05:02 OlivierCorby, can you scribe next week? 14:05:03 On the phone I see AxelPolleres, kasei, bglimm (muted), AndyS, Lee_Feigenbaum (muted), OlivierCorby, Ivan, SteveH, Souri, Chimezie_Ogbuji, MattPerry 14:05:38 next time scribing Olivier 14:05:51 Next: comments 14:05:55 topic: comments 14:05:57 http://www.w3.org/2009/sparql/wiki/Comments 14:06:03 Need to progress through comments 14:06:13 http://lists.w3.org/Archives/Public/public-rdf-dawg-comments/2010Apr/0000.html 14:06:17 i've tacked that onto my other NH comments. 14:06:26 + +1.919.332.aahh 14:06:32 they all sort of belong together 14:06:41 dcharbon2 has joined #sparql 14:06:47 sure 14:06:56 zakim, mute me 14:06:56 sorry, dcharbon2, I do not know which phone connection belongs to you 14:06:59 greg takes care 14:07:03 zakim, who is on the phone? 14:07:03 On the phone I see AxelPolleres, kasei, bglimm (muted), AndyS, Lee_Feigenbaum (muted), OlivierCorby, Ivan, SteveH, Souri, Chimezie_Ogbuji, MattPerry, +1.919.332.aahh 14:07:11 zakim, aahh is me 14:07:11 +dcharbon2; got it 14:07:16 RDB2RDF is close to publishing a UC&R document 14:07:19 Axel: Liasons. Anything to report? 14:08:16 Souri: going over usecase, not final yet, but coming close 14:08:19 Souri: RDB2RDF will soon have UC doc 14:08:23 Zakim, mute me 14:08:23 kasei should now be muted 14:08:27 Axel: we might want to review 14:08:33 zakim, mute me 14:08:33 dcharbon2 should now be muted 14:08:50 +??P35 14:08:53 Axel: Wording for conditions on entailment regimes 14:09:01 Zakim, ??P35 is me 14:09:01 +AlexPassant; got it 14:09:13 topic: entailment conditions rewordings 14:09:13 http://lists.w3.org/Archives/Public/public-rdf-dawg/2010AprJun/0030.html 14:09:26 q? 14:09:38 birte? 14:10:17 I was happy with the latest proposed text (per the mailing list) 14:10:19 Axel: 1st condition. SG G is uniquely specified and E-equivalent to regime 14:10:39 ... need to be specific about graph equivalence 14:11:09 ?? If the bnode labels differ, OPTIONAL does not work? 14:11:25 http://www.w3.org/mid/z2i492f2b0b1004190346k2f1eb1f3z67eeb0d5071dfc22@mail.gmail.com 14:12:11 "uniquely" --> "uniquely up to RDF graph equivalence" 14:12:13 q? 14:12:14 Axel: added 'uniquely up to RDF graph equivalence' 14:12:43 bglimm has joined #sparql 14:12:45 AndyS: how does this work with the rest of the algebra? 14:12:52 Zakim, unmute me 14:12:52 bglimm should no longer be muted 14:13:04 ... what about use of OPTIONAL, how do you roundtrip the blank nodes properly? 14:13:26 q? 14:15:00 Axel: SG is always determined before hand 14:15:00 ... so, blank nodes could differ from AG but uniquely determined module bnode mapping 14:15:02 OK - I understand now 14:15:11 Axel: I understoo that the SG is unique for the whole query 14:15:32 No need to change the text proposed. 14:15:38 ... do we need to stress that? 14:16:20 AndyS: fine with condition 1 as it is now 14:16:47 Axel: Each extension provides conditions to ensure finite answers 14:16:58 ... 1) finiteness 2) uniqueness up to blank node rephrasing 14:16:59 http://lists.w3.org/Archives/Public/public-rdf-dawg/2010AprJun/0055.html 14:17:31 change from 14:17:31 4 -- Each SPARQL extension must provide conditions on answer sets 14:17:31 which guarantee that every BGP and AG has a finite set of answers 14:17:31 which is unique up to RDF graph equivalence. 14:17:32 to 14:17:32 4 -- Each SPARQL extension MUST provide conditions, which guarantee 14:17:34 that the answer set for every BGP and AG is uniquely specified up to 14:17:36 RDF graph equivalence, and SHOULD provide further conditions to 14:17:38 prevent trivial infinite answers as appropriate to the regime. 14:19:04 q? 14:20:27 bglimm: need to say what the SG is and then what inferences you make, and then ensure the answers are the same where the only difference is blank node renaming 14:20:49 + +1.312.863.aaii 14:20:50 AndyS: what is the role of blank nodes in SG, how can they vary? 14:20:57 q+ to ask about blank nodes 14:20:59 bglimm: you can invent new ones 14:21:09 Zakim, aaii is me 14:21:09 +pgearon; got it 14:23:33 P(BGP) is the answer set 'graph' 14:25:06 I think we can resolve on condition 1... we need a wording for condition 4. 14:25:09 bglimm has joined #sparql 14:25:47 Axel: should we take this to the ML 14:25:48 bglimm has joined #sparql 14:26:01 PROPOSED: change Condition 1 as suggested in http://lists.w3.org/Archives/Public/public-rdf-dawg/2010AprJun/0055.html 14:26:35 1 -- The scoping graph, SG, corresponding to any consistent active 14:26:35 graph AG is specified uniquely up to RDF graph equivalence and is 14:26:35 E-equivalent to AG. 14:26:56 +1 14:27:09 RESOLVED: change Condition 1 as suggested in http://lists.w3.org/Archives/Public/public-rdf-dawg/2010AprJun/0055.html 14:27:36 ACTION: Birte to reformulate Condition 4 14:27:36 Created ACTION-221 - Reformulate Condition 4 [on Birte Glimm - due 2010-04-27]. 14:27:55 Axel: next on agenda - issue 49 14:27:56 Zakim, mute me 14:27:58 bglimm should now be muted 14:28:11 ... Graphs as information resources, etc. 14:28:12 topic: ISSUE-49 14:28:13 http://lists.w3.org/Archives/Public/public-rdf-dawg/2010AprJun/0048.html 14:28:34 Zakim, unmute me 14:28:34 kasei should no longer be muted 14:29:05 Greg: I brought this up on behalf of Kjetl 14:29:11 "Information resource" => "A resource which has the property that all of its essential characteristics can be conveyed in a message." (AWWW) 14:29:14 ... the definitions are loose, the wording should be cleared up 14:29:35 ... distinction between graphs and IRI used to reference the graph or the IR serialized by the graph 14:29:48 ... terminology is confusing 14:29:50 q? 14:29:56 ack me 14:29:56 AxelPolleres, you wanted to ask about blank nodes 14:29:58 ... need to clear up the language 14:30:21 http://www.w3.org/2009/sparql/docs/http-rdf-update/#http-get 14:31:39 there is no serialization involved, is there? 14:31:55 ... the distinction is important with regards to http-range-4 14:32:25 q+ 14:32:25 Axel: assumed that the issue was the use of the word equivalence 14:32:35 s/4/14 14:33:14 http://lists.w3.org/Archives/Public/public-rdf-dawg/2010AprJun/0065.html 14:33:27 This is equivalent to the following SPARQL query: 14:33:27 14:33:28 CONSTRUCT { ?s ?p ?o } WHERE { GRAPH { ?s ?p ?o } } 14:33:29 ... in the SPARQL 1.0 document, there is some confusion but it the uri does not reference the graph 14:33:45 q- 14:33:48 "This may be viewed equivalent to the following SPARQL query: 14:33:48 CONSTRUCT { ?s ?p ?o } WHERE { GRAPH { ?s ?p ?o } } 14:33:49 posed to a SPARQL endpoint which had any Web retrievable RDF graph in it's 14:33:49 Graph store. 14:33:49 " 14:34:24 14:35:50 from SPARQL 1.0: 14:35:53 """The FROM NAMED syntax suggests that the IRI identifies the corresponding graph, but the relationship between an IRI and a graph in an RDF dataset is indirect. The IRI identifies a resource, and the resource is represented by a graph (or, more precisely: by a document that serializes a graph).""" 14:39:59 "We recall from [SPARQL] that IRIs for RDF graphs in SPARQL queries identify a resource, and the resource is represented by a graph (or, more precisely: by a document that serializes a graph)" 14:40:38 +1 AndyS 14:43:29 the trouble is the parenthetical 14:43:40 AndyS is talking about the parenthetical, Chimezie about the thing right before it. 14:44:23 could we type in a rephrasing? 14:45:05 just merging the parenthetical back into the sentence would be a good start. 14:45:20 -AlexPassant 14:46:46 ACTION: chime to propose rewordings on mailinglist on http-protocol which clarify ISSUE-49 14:46:47 Created ACTION-222 - Propose rewordings on mailinglist on http-protocol which clarify ISSUE-49 [on Chimezie Ogbuji - due 2010-04-27]. 14:46:58 q? 14:47:34 +??P35 14:47:36 Zakim, ??P35 is me 14:47:36 +AlexPassant; got it 14:47:52 Zakim, mute me 14:47:52 kasei should now be muted 14:48:13 http://www.w3.org/TR/sparql11-update/#sec_graphStore 14:49:24 q? 14:50:08 topic: test suite 14:50:29 http://www.w3.org/2009/sparql/docs/tests/README.html 14:50:37 -AndyS 14:51:39 Axel: will need multiple manifests for testing framework 14:52:16 ... keep SPARQL 1.0 test cases as is and extend for 1.1 features? 14:53:17 ... my proposal is to include reference to old test cases - copying old manifest - and create new subdirectories for 1.1 features 14:53:25 ... but still only have 1 manifest file that extends the old one 14:53:58 Axel: what to do about update test cases? 14:54:27 ... update evaluation test cases need to cover different kinds of results: errors, results, etc.. 14:54:40 ... need to also describe before and after status of the graph store 14:55:03 http://www.w3.org/2009/sparql/docs/tests/README.html 14:56:21 ut:unnamedGraph, ut:namedGraph 14:56:40 ut:graph 14:56:44 ut:named 14:57:11 objections? comments? 14:57:34 zakim, pick a victim 14:57:34 Not knowing who is chairing or who scribed recently, I propose Chimezie_Ogbuji 14:57:55 I'll look and see how entailments could fit in 14:57:58 ACTION: chime to look over http://www.w3.org/2009/sparql/docs/tests/README.html 14:57:58 Created ACTION-223 - Look over http://www.w3.org/2009/sparql/docs/tests/README.html [on Chimezie Ogbuji - due 2010-04-27]. 14:58:25 when are we scheduled for next publication? 14:58:32 AndyS1 has joined #sparql 14:59:46 ACTION: axel to check with editors what's the status of docs wrt. publication schedule 14:59:46 Created ACTION-224 - Check with editors what's the status of docs wrt. publication schedule [on Axel Polleres - due 2010-04-27]. 14:59:46 -bglimm 15:00:36 summary: next time discuss Fed queries and publication schedule, all editors, let us know how far you are wrt. publication of next round! 15:00:46 quit 15:00:46 -Chimezie_Ogbuji 15:00:47 zakim, drop me 15:00:47 -Souri 15:00:47 -dcharbon2 15:00:47 -SteveH 15:00:48 Ivan is being disconnected 15:00:48 -Ivan 15:00:49 -kasei 15:00:51 -pgearon 15:00:51 chair: axel polleres 15:00:59 -OlivierCorby 15:01:01 -Lee_Feigenbaum 15:01:03 -MattPerry 15:01:04 rrsagent, make records public 15:01:13 -AlexPassant 15:01:15 -AxelPolleres 15:01:19 SW_(SPARQL)10:00AM has ended 15:01:21 Attendees were +03539149aaaa, AxelPolleres, +1.518.276.aabb, kasei, bglimm, Lee_Feigenbaum, +49.238.aadd, +0208439aaee, OlivierCorby, Ivan, +0208439aaff, +1.603.897.aagg, Souri, 15:01:21 sandro, any eta on the service description graph naming issue response? 15:01:28 ... Chimezie_Ogbuji, AndyS, MattPerry, SteveH, +1.919.332.aahh, dcharbon2, AlexPassant, +1.312.863.aaii, pgearon 15:02:14 CTION: axel to fix the example in http://www.w3.org/2009/sparql/docs/tests/README.html 15:02:18 ACTION: axel to fix the example in http://www.w3.org/2009/sparql/docs/tests/README.html 15:02:18 Created ACTION-225 - Fix the example in http://www.w3.org/2009/sparql/docs/tests/README.html [on Axel Polleres - due 2010-04-27]. 15:02:21 adjourned 15:02:27 member:rrsagent, make records public 15:02:40 rrsagent, make records public 15:11:59 Are there any XML schema datatypes that have a value space that maintains precision (i.e. lexical forms "2.0" and "2.00" correspond to different values)? 15:13:13 OlivierCorby has left #sparql 15:17:20 ick 15:17:23 LeeF, string :) 15:20:00 haha 15:20:54 oy 15:21:00 what should i tell my scientist users? :) 15:21:59 they should relax? ;) 15:22:11 lol 15:23:43 SteveH has joined #sparql 15:24:10 I'm going to tell them to call you, Steve. 15:32:27 LeeF, why are you constrained to XSD? If you've got specific needs, why not make your own? 16:12:05 because i don't want to invent a wheel on my own 16:12:45 i've got a bunch of software based around RDF (which means XSD as the basis for literal typing), and I'd like to support a use case that requires this, but it's not the core of what i do :) 16:24:21 if they have "12.000"^^sci:number they can cast as appropriate 16:26:04 AndyS has joined #sparql 17:13:33 Zakim has left #sparql 18:50:42 SteveH_ has joined #sparql 19:10:33 http://www.w3.org/2009/sparql/wiki/CommentResponse:NH-1 19:10:37 anyone want to glance over that? 19:12:04 Mostly concerned about the last paragraph. Not sure it's exactly "beyond the scope" of the SD work, but it's never been discussed before and I'm not sure there are any implementations (except NH's week-old one which brought up the issue) which do it. 19:12:38 so worried about the timing and feature creep 19:20:23 trackbot, close ACTION-189 19:20:23 ACTION-189 Get back to ivanh on the usabuility of POWDER for SD. closed 19:20:26 trackbot, close ACTION-214 19:20:26 ACTION-214 Add ability to mark individual graphs with their entailment regime closed 19:22:19 kasei, I think that response is fine 19:22:40 ok. the one thing I haven't addressed yet is his question about indicating parsable formats. 19:22:55 we're now doing result formats, but not parsing formats. 19:23:11 hesitant to keep adding things, but does seem like a strange asymmetry. 20:35:23 LeeF has joined #sparql