14:58:05 RRSAgent has joined #rdf-wg 14:58:05 logging to http://www.w3.org/2011/09/28-rdf-wg-irc 14:58:39 scribenick pfps 14:59:18 trackbot, start meeting 14:59:20 RRSAgent, make logs world 14:59:22 Zakim, this will be 73394 14:59:22 ok, trackbot; I see SW_RDFWG()11:00AM scheduled to start in 1 minute 14:59:23 Meeting: RDF Working Group Teleconference 14:59:23 Date: 28 September 2011 14:59:58 AlexHall has joined #rdf-wg 15:00:09 Arnaud has joined #rdf-wg 15:00:38 scribenick: pfps 15:00:43 zakim, who is here? 15:00:43 SW_RDFWG()11:00AM has not yet started, Guus 15:00:44 On IRC I see Arnaud, AlexHall, RRSAgent, Zakim, AZ, pfps, Scott_Bauer, Guus, danbri, mischat, gavinc, MacTed, LeeF, SteveH, NickH, manu, manu1, davidwood, trackbot, stain, yvesr_, 15:00:47 ... sandro, ericP 15:01:11 PatH has joined #rdf-wg 15:01:30 Zakim, who's here? 15:01:30 SW_RDFWG()11:00AM has not yet started, MacTed 15:01:31 On IRC I see PatH, Arnaud, AlexHall, RRSAgent, Zakim, AZ, pfps, Scott_Bauer, Guus, danbri, mischat, gavinc, MacTed, LeeF, SteveH, NickH, manu, manu1, davidwood, trackbot, stain, 15:01:33 ... yvesr_, sandro, ericP 15:01:36 Zakim, this is 73394 15:01:36 ok, MacTed; that matches SW_RDFWG()11:00AM 15:01:38 +bhyland 15:01:39 Zakim, who's here? 15:01:40 On the phone I see +31.20.598.aaaa, Tony, +33.4.77.42.aabb, +1.443.212.aacc, OpenLink_Software, Arnaud, +1.707.861.aadd, bhyland 15:01:44 On IRC I see PatH, Arnaud, AlexHall, RRSAgent, Zakim, AZ, pfps, Scott_Bauer, Guus, danbri, mischat, gavinc, MacTed, LeeF, SteveH, NickH, manu, manu1, davidwood, trackbot, stain, 15:01:47 ... yvesr_, sandro, ericP 15:01:48 Zakim, OpenLink_Software is temporarily me 15:01:49 +Peter_Patel-Schneider 15:01:50 Zakim, mute me 15:01:51 zakim, aadd is me 15:01:53 +MacTed; got it 15:01:55 MacTed should now be muted 15:01:57 +gavinc; got it 15:01:58 zakim, aacc is me 15:01:59 zakim, bhyland is me 15:02:01 + +44.207.923.aaee 15:02:03 zakim, Tony is me 15:02:05 +AlexHall; got it 15:02:06 scribenick: pfps 15:02:07 +davidwood; got it 15:02:09 +Scott_Bauer; got it 15:02:14 zakim, +31.20.598.aaaa is me 15:02:17 +Guus; got it 15:02:18 fyi, I will have to drop at the hour 15:02:21 pchampin has joined #rdf-wg 15:02:28 topic: Admin 15:02:41 +PatH 15:03:09 cmatheus has joined #rdf-wg 15:03:15 Zakim, who's on the call? 15:03:15 On the phone I see Guus, Scott_Bauer, +33.4.77.42.aabb, AlexHall, MacTed (muted), Arnaud, gavinc, davidwood, Peter_Patel-Schneider, +44.207.923.aaee, PatH 15:03:15 zakim, aabb is me 15:03:18 I will have to drop out in 30 mins for a short while. 15:03:18 +AZ; got it 15:03:27 Zakim, +44.207.923.aaee is me 15:03:27 +yvesr_; got it 15:03:32 Zakim, mute me 15:03:32 yvesr_ should now be muted 15:03:37 zakim, who is here? 15:03:37 On the phone I see Guus, Scott_Bauer, AZ, AlexHall, MacTed (muted), Arnaud, gavinc, davidwood, Peter_Patel-Schneider, yvesr_ (muted), PatH 15:03:37 zwu2 has joined #rdf-wg 15:03:39 On IRC I see cmatheus, pchampin, PatH, Arnaud, AlexHall, RRSAgent, Zakim, AZ, pfps, Scott_Bauer, Guus, danbri, mischat, gavinc, MacTed, LeeF, SteveH, NickH, manu, manu1, davidwood, 15:03:41 ... trackbot, stain, yvesr_, sandro, ericP 15:03:45 + +1.781.899.aaff 15:03:45 zakim, code? 15:03:47 the conference code is 73394 (tel:+1.617.761.6200 sip:zakim@voip.w3.org), zwu2 15:03:55 zakim, aaff is Sandro 15:03:55 +Sandro; got it 15:04:04 +??P34 15:04:12 zakim, ??P34 is me 15:04:12 +pchampin; got it 15:04:14 zakim, mute me 15:04:14 pchampin should now be muted 15:04:28 + +1.650.265.aagg 15:04:33 zakim, mute me 15:04:33 PatH should now be muted 15:04:39 zakim, aagg is me 15:04:39 +zwu2; got it 15:04:49 zakim, mute me 15:04:50 zwu2 should now be muted 15:04:52 PROPOSED: accept minutes of 21 Sep http://www.w3.org/2011/rdf-wg/meeting/2011-09-21 15:05:03 +1 15:05:21 RESOLVED: accept minutes of 21 Sep http://www.w3.org/2011/rdf-wg/meeting/2011-09-21 15:05:33 guus: action items - pending 15:05:54 AndyS has joined #rdf-wg 15:06:16 +EricP 15:06:37 done :) 15:06:49 guus: 77 done, 89 [done], 90 done, 91 done 15:06:51 Souri has joined #rdf-wg 15:07:02 guus: open actions 15:07:08 + +1.603.897.aahh 15:07:18 zakim, aahh is me 15:07:19 +Souri; got it 15:07:27 guus: action 82 - Sandro? 15:07:42 sandro: no action yet - will try this week 15:07:53 guus: action 86 - Sandro? 15:08:08 action-86? 15:08:08 ACTION-86 -- Sandro Hawke to provide example for how code is simpler with language-tag options 3 and 4 vs 1 and 2. -- due 2011-09-14 -- OPEN 15:08:08 http://www.w3.org/2011/rdf-wg/track/actions/86 15:08:35 sandro: 86 is either done or obsolete 15:08:41 guus: everything is to continue 15:08:43 it's both! 15:09:07 TOPIC: F2F planning 15:09:12 guus: anything to be done 15:09:14 is it disjunction and/or conjunction? :-) 15:09:22 Zakim, unmute me 15:09:23 yvesr_ should no longer be muted 15:09:51 davidwood: note that times have changed (and are now aligned) 15:09:53 Zakim, mute me 15:09:53 yvesr_ should now be muted 15:09:59 sandro, do you know the foo to make sure the Stata doors are unlocked? 15:10:09 if not, i'll dig into it 15:10:22 please do, eric. 15:10:36 guus: agenda for F2F2 is on the wiki, need to make sure that some open time remains 15:10:53 guus: no need to change more right now 15:10:54 cmatheus has joined #rdf-wg 15:11:15 TOPIC: Turtle in HTML 15:11:36 guus: see message from Gavin 15:11:57 gavinc: document needs to be brought up before HTML task force 15:12:13 s/HTML/HTML data/ 15:13:04 ACTION gavinc: liase with HTML data task force to bring up Turtle in HTML document, etc. 15:13:04 Created ACTION-92 - Liase with HTML data task force to bring up Turtle in HTML document, etc. [on Gavin Carothers - due 2011-10-05]. 15:13:52 TOPIC: Liaison with Provenance WG 15:14:11 guus: trust use case from Sandro http://lists.w3.org/Archives/Public/public-rdf-prov/2011Sep/0003.html 15:14:33 q+ to ask what impact Turtle in HTML might have on RDF/JSON 15:14:34 guus: this appears to be a good, driving example 15:15:00 sandro: I can't speak for the PWG, even though I tried to provoke discussion of it there 15:15:30 sandro: Richard had some comments, notably a set of actions 15:16:03 guus: how about RDF to show example(s)? 15:16:23 this example seems very ambitious to me. ZDoes the Prov. grp consider it in their scope? 15:16:36 +??P3 15:16:44 sandro: one issue is when you need a "snapshot", e.g., "That's not right", but then the "that" is fixed 15:16:48 zakim, ??P3 is me 15:16:48 +AndyS; got it 15:17:10 sandro: Richard's proposal does not appear to speak to this 15:17:10 cygri has joined #rdf-wg 15:18:18 guus: can we come up with some worked examples, showing potential RDF content? 15:18:34 sandro: I'll try to work this into the conversation with Richard 15:18:57 will post to public-rdf-prov@w3.org 15:19:08 sandro: on the joint mailing list public-rdf-prov@w3.org 15:19:52 guus: can something be done on this at the F2F? 15:20:06 q- 15:20:07 guus: we need to prepare something on this for F2F 15:20:30 sandro: can others do other examples? 15:20:52 guus: how about responding to the first example with potential solutions? 15:21:44 http://www.w3.org/2011/rdf-wg/wiki/TF-Graphs-UC 15:22:14 the above link is the relevant page for this WG to edit on provenance 15:22:23 guus: volunteers to do something? 15:22:58 gavinc: there is an example - i'll work on it 15:23:36 just got a nice use-case from Denni V - I asked him to write it up 15:23:47 about data wikis 15:23:59 whatever you decide, it only works if everyone does it. 15:24:19 Exactly. 15:24:40 sandro: maybe simplest solution is all script/turtle elements are the default graph, unless they have id tags. This gives you a dataset serialization format (although only when the graph ids have the same base) 15:24:51 guus: please come up with interesting suggestions for proposals 15:25:04 -Arnaud 15:25:22 Jan 15:25:41 Jan Wielemaker 15:25:43 +Arnaud 15:25:50 (implicit) base URIs considered harmful. 15:25:52 will ask him to look at examples 15:25:54 guus: i'll ask Jan Wielemaker to contribute 15:26:08 AndyS++ 15:26:45 "My favorite quadstore", a contemporary love story. 15:26:54 www.w3.org/2011/rdf-wg/wiki/Graphs-In-Turtle 15:27:02 guus: provenance will be a main topic at the F2F 15:27:55 gavinc: work on serialization of all this 15:28:32 gavinc: looking at what it would take to standarize something like TRIG or n-QUADS and how it could be compatible with Turtle 15:29:11 gavinc: proposal from me (GRAPH keyword); another like TRIG (see strawman page) 15:29:47 topic: Status RDF Dataset proposal 15:30:25 gavinc: problem with TRIG is that it isn't n-quads (because TRIG has to have all the graph in one spot) 15:30:36 -PatH 15:30:40 Strawman proposal Richard: http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-concepts/index.html#section-multigraph 15:30:48 q+ to say the semantics might be easier if each graph simply added to the "database" so repeats simply append 15:31:14 Sandro: I don't like stateful syntaxes 15:31:52 ericp 15:32:28 ericP: Turtle already has state - in [], prefixes, etc., so we wouldn't be too much worse 15:32:35 { {

} } 15:32:40 q? 15:32:47 ack eripP 15:32:53 { 15:32:58 ack aricP 15:33:02 Turtle is only concat as whole files. (bNode labels excepted) is that enough? 15:33:03 {

} 15:33:05 } 15:33:15 +LeeF 15:33:28 sandro: so good practice might be to start every turtle doc with "@graph . #go back to the default graph" if you think there might be concats. 15:33:29 ericP: some of this can be addressed by fiddling with embedding 15:33:46 ack ericP 15:33:46 ericP, you wanted to say the semantics might be easier if each graph simply added to the "database" so repeats simply append 15:34:06 ericP: concatenation has some negative consequences 15:35:01 ericP: line-orientation also runs counter to concatenability 15:35:20 We repeat the same graph ID a fair amount 15:35:30 (in our TriG documents) 15:35:33 And it's additive 15:35:38 AndyS: the (?) implementation of TRIG actually allows graph id repetition 15:36:13 gavinc: but the semantics may not be best 15:36:34 = vs += 15:36:36 sandro: N3 has an implicit "=", so concatentation isn't the intended meaning 15:36:48 ericP: which version of N3 15:37:01 s/ericP/AndyS/ 15:37:16 sandro: both 15:38:15 sandro: for this week, I'm inclined to go with @graph, since it's more clear to me what it means. 15:38:21 with the curly braces approach, we have a short way to write the grammar: 15:38:22 [1] trigDoc ::= ( directive | trigGraph )* 15:38:22 [2] trigGraph ::= IRIref "="? "{" turtleDoc" "}" "."? 15:38:37 and lean on the turtle spec 15:38:52 sandro: @graph form - semantics?? 15:39:20 @graph . #go back to the default graph 15:39:22 gavinc: not complete 15:39:32 sandro: when you hit the end of the turtle file, do you know exactly which triples are in each named graph? 15:40:10 guus: any relationship to documents 15:41:09 ?? 15:41:26 q+ to say that i fiddled with making trig lean on Turtle: http://www.w3.org/2010/01/Turtle/Trig 15:41:43 sandro: dataset = gbox, gsnap is different 15:42:08 gavinc: need something that shows complete graph contents 15:42:44 sandro: yes 15:42:51 sandro: maybe = syntax will be clearer these are gsnaps 15:43:09 (uh oh - phone problems - may drop off without warning.) 15:43:22 ericP: i fiddled with making trig lean on Turtle: http://www.w3.org/2010/01/Turtle/Trig 15:43:35 Why not make Trig simply +Turtle (unnamed {} optional) +NQuads (outside {}) 15:44:34 sandro: how about splitting the difference? 15:44:43 AndyS: the strawman is more line oriented 15:45:02 q- 15:45:08 AndyS: this helps with relationship to n-quads 15:45:22 +Sandro.a 15:46:37 [....] is nesting, yeah. 15:46:43 gavinc: trig introduces nesting to turtle, which doesn't have much 15:47:18 although only one degree of nesting (in trig) 15:47:28 -Sandro 15:47:59 TOPIC: Status RDF Dataset proposal 15:48:09 Strawman proposal Richard: http://dvcs.w3.org/hg/rdf/raw-file/default/rdf-concepts/index.html#section-multigraph 15:48:33 guus: as Richard is not here, let's move on 15:48:44 guus: ISSUE-12 language-tagged literals 15:48:58 guus: Results of poll so far: http://www.w3.org/2002/09/wbs/46168/tagged_literals/results 15:49:42 guus: the proposals with only a few "no" votes are 1 and 2d 15:49:56 guus: the other proposals are very likely to be problematic 15:50:41 guus: option 2d has fewer prefer not votes, so it appears to be a more-liked solution 15:51:12 +1 to go on with 2d 15:51:17 guus: shall we spend *more* time discussing this, or should we just try for 2d 15:51:20 +1 to go with 2d 15:51:24 I'm happy with 2d 15:51:37 +1 to go on with 2d 15:51:40 guus++ 15:52:08 Arnaud, did you say that the current RDF spec says that language tags are normalized to lower case? 15:52:47 davidwood: should we spend some time looking at cleaning up various uses of string literals 15:53:05 ericP, yes 15:53:29 guus: spending scarce F2F time may not be the best way 15:54:07 guus: can we put forward a proposal (next week?) in preparation for a final decision at the F2F? 15:54:13 gavinc, wasnt' that why we gave up on the datatype approach? 15:54:18 davidwood: OK 15:54:27 oh well, i'm not going to push anything 15:54:51 guus: i'll propose a resolution for next week (but maybe the initial proposer would be better) 15:55:20 ericP - yes - sec 6.5 of "concepts" 15:55:40 sandro: we need to try to make a final resolution - no backsliding! 15:56:05 TOPIC: AOB 15:56:41 ACTION guus: propose a resolution for next week on language-tagged-literals 15:56:41 Created ACTION-93 - Propose a resolution for next week on language-tagged-literals [on Guus Schreiber - due 2011-10-05]. 15:57:01 guus: adjourned 15:57:07 -AndyS 15:57:08 bye! 15:57:08 -MacTed 15:57:10 -EricP 15:57:10 bye 15:57:11 -LeeF 15:57:11 -Souri 15:57:11 -yvesr_ 15:57:13 -davidwood 15:57:13 -Guus 15:57:14 -Arnaud 15:57:14 bye 15:57:16 -gavinc 15:57:17 -AlexHall 15:57:20 -Peter_Patel-Schneider 15:57:24 -zwu2 15:57:28 -AZ 15:57:34 -Sandro.a 15:57:36 -Scott_Bauer 15:58:31 rrsagent, please set logs world-visible 15:58:40 rrsagent, please draft minutes 15:58:40 I have made the request to generate http://www.w3.org/2011/09/28-rdf-wg-minutes.html pfps 15:58:51 AlexHall has left #rdf-wg 15:59:16 rrsagent, please set minutes world-visible 15:59:16 I'm logging. I don't understand 'please set minutes world-visible', pfps. Try /msg RRSAgent help 16:00:13 cygri has joined #rdf-wg 16:08:17 -pchampin 16:08:19 SW_RDFWG()11:00AM has ended 16:08:20 Attendees were +33.4.77.42.aabb, +1.443.212.aacc, Arnaud, +1.707.861.aadd, Peter_Patel-Schneider, MacTed, gavinc, AlexHall, davidwood, Scott_Bauer, Guus, PatH, AZ, yvesr_, 16:08:22 ... +1.781.899.aaff, Sandro, pchampin, +1.650.265.aagg, zwu2, EricP, +1.603.897.aahh, Souri, AndyS, LeeF 16:08:48 rrsagent, please draft minutes 16:08:48 I have made the request to generate http://www.w3.org/2011/09/28-rdf-wg-minutes.html pfps 16:09:14 Those aren't are minutes system btw ;) 16:10:26 http://www.w3.org/2009/CommonScribe/panel/ 18:03:54 Zakim has left #rdf-wg 18:17:55 AndyS has joined #rdf-wg 18:30:14 cygri has joined #rdf-wg 20:24:30 cygri has joined #rdf-wg 20:33:44 AndyS has joined #rdf-wg 20:58:03 cygri has joined #rdf-wg 21:35:29 cygri has joined #rdf-wg 21:47:04 mischat has joined #rdf-wg 21:53:01 cygri has joined #rdf-wg 23:29:11 LeeF has joined #rdf-wg 23:49:43 Arnaud has left #rdf-wg