14:55:35 RRSAgent has joined #rdf-wg 14:55:35 logging to http://www.w3.org/2012/09/26-rdf-wg-irc 14:55:37 RRSAgent, make logs world 14:55:37 Zakim has joined #rdf-wg 14:55:39 Zakim, this will be 73394 14:55:39 ok, trackbot; I see SW_RDFWG()11:00AM scheduled to start in 5 minutes 14:55:40 Meeting: RDF Working Group Teleconference 14:55:40 Date: 26 September 2012 14:56:00 zakim, who is here? 14:56:00 SW_RDFWG()11:00AM has not yet started, Guus 14:56:01 On IRC I see RRSAgent, Guus, gkellogg, AndyS, tbaker, ivan, MacTed, mischat, gavinc, davidwood, manu1, manu, yvesr, ericP, trackbot, sandro 14:56:55 Arnaud has joined #rdf-wg 14:59:06 AZ has joined #rdf-wg 14:59:40 zakim, dial ivan-home 14:59:40 ok, ivan; the call is being made 14:59:49 zakim, drop me 14:59:49 sorry, ivan, I don't know what conference this is 14:59:58 wtf zakim 15:00:08 Zakim, this is RDF 15:00:08 ok, sandro; that matches SW_RDFWG()11:00AM 15:00:22 zakim, dial ivan-voip 15:00:22 ok, ivan; the call is being made 15:00:24 +Ivan 15:00:26 zakim, who is on the phone? 15:00:26 On the phone I see ??P3, Guus, Sandro, EricP, Ivan (muted), ??P6, Ivan (muted) 15:00:37 zakim, ??P6 is me 15:00:37 +AndyS; got it 15:00:38 +Arnaud 15:00:42 Zakim, ??P3 is me 15:00:42 +yvesr; got it 15:00:45 +??P10 15:00:47 pchampin has joined #rdf-wg 15:00:55 Zakim, ??P10 is me 15:00:55 +AZ; got it 15:01:00 pfps has joined #rdf-wg 15:01:16 +??P13 15:01:24 zakim, who is here? 15:01:24 On the phone I see yvesr, Guus, Sandro, EricP, Ivan, AndyS, Ivan, Arnaud, AZ, ??P13 15:01:26 On IRC I see pfps, pchampin, AZ, Arnaud, Zakim, RRSAgent, Guus, gkellogg, AndyS, tbaker, ivan, MacTed, mischat, gavinc, davidwood, manu1, manu, yvesr, ericP, trackbot, sandro 15:01:28 zakim, ??P13 is me 15:01:28 +pchampin; got it 15:01:29 +gavinc 15:01:34 zakim, drop ivan 15:01:35 'ivan' is ambiguous, ivan 15:01:50 cygri has joined #rdf-wg 15:02:00 -Ivan 15:02:05 zakim, who is here? 15:02:05 On the phone I see yvesr, Guus, Sandro, EricP, Ivan, AndyS, Arnaud, AZ, pchampin, gavinc 15:02:06 zakim, drop ivan 15:02:08 On IRC I see cygri, pfps, pchampin, AZ, Arnaud, Zakim, RRSAgent, Guus, gkellogg, AndyS, tbaker, ivan, MacTed, mischat, gavinc, davidwood, manu1, manu, yvesr, ericP, trackbot, 15:02:08 ... sandro 15:02:08 Ivan is being disconnected 15:02:08 -Ivan 15:02:12 + +1.408.992.aaaa 15:02:14 zakim, who is here? 15:02:14 +mhausenblas 15:02:20 On the phone I see yvesr, Guus, Sandro, EricP, AndyS, Arnaud, AZ, pchampin, gavinc, +1.408.992.aaaa, mhausenblas 15:02:23 On IRC I see cygri, pfps, pchampin, AZ, Arnaud, Zakim, RRSAgent, Guus, gkellogg, AndyS, tbaker, ivan, MacTed, mischat, gavinc, davidwood, manu1, manu, yvesr, ericP, trackbot, 15:02:26 zakim, aaaa is me 15:02:26 zakim, mhausenblas is temporarily me 15:02:28 ... sandro 15:02:30 +??P18 15:02:32 zakim, dial ivan-voip 15:02:33 zakim, I am ??P18 15:02:34 +davidwood 15:02:37 +pfps; got it 15:02:38 +cygri; got it 15:02:44 ok, ivan; the call is being made 15:02:48 +Ivan 15:02:50 +gkellogg; got it 15:03:53 scribe: gavinc 15:04:00 gavinc insists on scribing; WG agrees reluctantly. 15:04:03 Topic: Admin 15:04:08 zwu2 has joined #rdf-wg 15:04:38 Guus: No formated version of minutes yet 15:04:57 ... maybe someone can format them during the telecon 15:05:18 ... people happy to accept as they are? 15:05:46 +zwu2 15:05:50 http://www.w3.org/2011/rdf-wg/meeting/2012-09-19 15:06:24 sandro: there are some errors 15:06:35 Guus: I propose to accept the minutes as they are 15:06:40 names "tlr" and "marcus" are not resolved. 15:06:41 PROPOSED to accept the minutes of the 19 September: 15:06:55 Subtopic: Action Items 15:07:56 Subtopic: Telecon time 15:08:07 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0213.html 15:08:23 AlexHall has joined #rdf-wg 15:08:28 Guus: 12:00-12:30 EST is very busy 15:08:31 + +1.443.212.aabb 15:08:38 ... no change unless something can be done w/o problems for active WG members 15:08:58 gavinc: Yes, I'd have some trouble getting here 30 minutes sooner 15:09:36 Guus: Has someone (sandro) figured out some other solution? 15:09:42 minutes fixed: http://www.w3.org/2011/rdf-wg/meeting/2012-09-19 15:09:43 sandro: No, I haven't 15:10:18 Guus: Postpone decision till...? 15:10:39 sandro: will convey that we don't just want to change 15:11:03 davidwood++ 15:11:10 davidwood: at this point it's hard to change. Perhaps we could change at some point in the future? Perhaps if we go into an extension of our charter. 15:11:15 zakim, who is here? 15:11:16 On the phone I see yvesr, Guus, Sandro, EricP, AndyS, Ivan, Arnaud (muted), AZ, pchampin, gavinc, pfps, cygri, gkellogg, davidwood, zwu2, AlexHall 15:11:17 On IRC I see AlexHall, zwu2, cygri, pfps, pchampin, AZ, Arnaud, Zakim, RRSAgent, Guus, gkellogg, AndyS, tbaker, ivan, MacTed, mischat, gavinc, davidwood, manu1, manu, yvesr, ericP, 15:11:19 ... trackbot, sandro 15:11:58 subtopic: Next Meeting 15:12:05 Guus: Next week 15:12:12 subtopic: Next F2F 15:12:19 Guus: Will start on agenda 15:12:29 Guus: Have a number of requests for observers 15:12:42 Topic: Provenance Constraints Review 15:13:11 Guus: LC period has already ended. Last week. 15:13:30 ericP: Haven't done it yet, didn't know there was such time pressure 15:13:49 cygri: Constraints LC is October 10th 15:14:08 davidwood: There were a number of documents 15:14:29 ivan: surprised that the Constraints document needs RDF WG review 15:14:45 cygri: Been working threw the documents, expect to finish in the next few days 15:14:55 Guus: Thanks for doing it quick 15:15:01 ericP: I won't be done by then 15:15:30 Topic: Turtle 15:16:00 i can scribe 15:16:22 ericP: we have pretty clear plans for going forward 15:16:34 ... we decided not to do the inverse property thing 15:16:38 scribenick cygri 15:16:43 ... everything else editorial 15:17:10 gavinc: there was one more feature request for unsetting base/prefix 15:17:40 ... a somewhat odd feature 15:17:44 q+ 15:17:49 ack ivan 15:17:52 ivan: i have not seen much request for things like that 15:17:54 ack ivan 15:18:19 q+ 15:18:40 ack cygri 15:19:37 concatenating turtle files has other problems - reused bnode labels. 15:20:07 cygri: the issue was that concatenating turtle files can change the triples 15:20:18 danbri has joined #rdf-wg 15:21:02 zakim, who is here? 15:21:02 On the phone I see yvesr, Guus, Sandro, EricP, AndyS, Ivan, Arnaud (muted), AZ, pchampin, gavinc, pfps, cygri, gkellogg, davidwood, zwu2, AlexHall 15:21:04 On IRC I see danbri, AlexHall, zwu2, cygri, pfps, pchampin, AZ, Arnaud, Zakim, RRSAgent, Guus, gkellogg, AndyS, tbaker, ivan, MacTed, mischat, gavinc, davidwood, manu1, manu, 15:21:04 ... yvesr, ericP, trackbot, sandro 15:21:11 ... so there are a number of reasons why concatenating turtle files is a bad idea 15:21:55 gavinc: i will get to LC responses next week 15:22:10 guus: would be nice to have proposed draft resolutions 15:22:14 topic: JSON-LD 15:23:13 gkellogg: committed to getting all the comments done to have the JSON-LD syntax ready for review by Monday 15:23:36 Guus: Can you say a few words on planning? 15:23:39 PatH has joined #rdf-wg 15:24:07 sorry im late, medicals took more time than planned. 15:24:22 gkellogg: we have agreement in principle, they are open as we don't have the spec updated. All of the open issues have resolutions but they don't have spec text yet. 15:24:40 .. one of them was an update on the alignment between RDF Concepts and JSON-LD 15:25:02 +PatH 15:25:26 gkellogg: Most of the work from Drupul feedback will be in the API document, not the syntax document 15:25:46 gkellogg: one of the issues is the compacting and round tripping 15:26:13 Guus: Next Monday, 1 October for JSON-LD review? 15:26:31 gkellogg: Yes, will send out notification that the document is ready for review 15:26:51 q+ 15:26:52 davidwood: Could get to CR before end of charter? 15:27:12 gkellogg: Yes, I think we can for the Syntax document. The API document is less on track. 15:27:41 ivan: API document will need to check if the RDF WG is going to publish the API document as well 15:28:04 gkellogg: My recollection is that both Syntax and API are both to be published by the RDF WG 15:28:05 ack ivan 15:28:22 ivan: It is possible to move to PR and jump over CR 15:28:36 ... if there is enough test suites and implementations 15:28:45 ... not saying we should talk about that today 15:28:49 +1 to Ivan. Plenty of implementations exist. 15:28:53 ... but we should consider it. 15:29:03 +q 15:29:07 The W3C Process also calls CR a "Call for Implementations" 15:29:11 I believe technically it's not jumping over CR, it's just going through instantaneously by satisfying the requirement for implementations 15:29:25 Arnaud, right 15:29:26 sandro: should include language in LC if skipping CR 15:29:35 +OpenLink_Software 15:29:40 gkellogg: yes there are implementations, but we have test suites 15:29:41 Zakim, OpenLink_Software is temporarily me 15:29:41 +MacTed; got it 15:29:43 Zakim, mute me 15:29:43 MacTed should now be muted 15:29:43 -q 15:30:14 Topic: Graphs 15:31:00 Guus: Constrained by charter expires 1 Feb 2013 15:31:12 ... only possible if documents are in Last Call 15:31:45 ... what can we do in the next 3 months? 15:33:23 zakim, who is on the call? 15:33:23 On the phone I see yvesr, Guus, Sandro, EricP, AndyS, Ivan, Arnaud (muted), AZ, pchampin, gavinc, pfps, cygri, gkellogg, davidwood, zwu2, AlexHall, PatH, MacTed (muted) 15:33:26 http://www.w3.org/2011/rdf-wg/wiki/TF-Graphs/Minimal-dataset-semantics 15:34:06 http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0220.html is this the version that Pat and Peter both agree with? 15:35:08 pfps: there are two kinds of differences, if the default graph is inconsistent then the whole set is inconsistent. Mine doesn't have that. 15:36:06 pfps: In mine you do entailment on the graphs in side the dataset, in the other datasets have interpretations and entailment takes place between them 15:36:06 should we even call that last notion of entailment "entailment"? 15:37:05 Please everyone respond to Sandro's email on "Dataset Syntax - checking for consensus" so we can get an overview of what people's current positions are. http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0249.html -- low cost : respond with +1/0/-1 a few times 15:39:03 q+ 15:39:06 PatH: It sounds like sandro is saying that Dataset semantics doesn't make sense. And PatH and pfps agree with you. 15:39:13 +1 to what Pat says, it is fairly clear 15:39:22 it's not RDF 2004 semantics 15:39:37 PatH: It's not no semantics, it's just RDF 2004 semantics 15:39:53 Zakim, who is talking? 15:40:05 gavinc, listening for 11 seconds I heard sound from the following: Guus (31%), AZ (54%), gavinc (13%) 15:40:19 @gavin: it does make sense, but its not clear it has a use. 15:40:30 I don't think that the scribe is correct. I would say that sandro was suggesting that entailment in the dataset semantics doesn't make sense or have much use, and Pat and I were more or less agreeing. 15:40:43 I think you'd want the inference labeled with a DIFFERENT BUT RELATED iri. 15:40:56 Now I'm lost. 15:41:13 +1 pfps on scribing. 15:41:48 Q 15:41:50 q 15:41:55 q? 15:41:55 q? 15:41:57 q+ 15:42:08 ack cygri 15:42:28 cygri: Why do this over saying nothing? 15:42:35 +1 cygri 15:42:52 ack PatH 15:43:02 oh no not +1, I misunderstood I think 15:43:25 Antoine: need to keep the graph label associated with entailments of named graph as it might indicate a context of truth such as time. 15:43:48 pfps: I would prefer no symantics, but there was push back. So this is a fall back position that doesn't preclude doing things that people want. 15:44:00 q+ 15:44:10 ... there are so many things that people want to do with named graphs that it's hard to come up with a symantics that covers all of them 15:44:46 q+ 15:44:50 pfps: I think there need to be caviots put around it. If you want to use entailments then this is the way to getting at it. 15:44:57 caveat 15:45:04 +q 15:45:05 ack AZ 15:45:10 s/caviots/caveats 15:45:41 q+ 15:45:48 AZ: if you don't need to do entailments, then you can just work with data structure. The symantics doesn't do anything to the dataset. I don't see where the damage is. 15:46:27 ... there is no symantics that can cover all the use cases, and I agree. The minimal symantics doesn't cover all the use cases, it's supposed to be the min comment points between the use cases 15:46:29 that's NOT at all what I said. I said, and said VERY explicitly, that I don't see a semantics that covers even a good fraction of the use cases. 15:48:15 q? 15:48:21 ack PatH 15:48:37 PatH: Trying to pick up on a point that AZ made... 15:49:57 manu has joined #rdf-wg 15:50:06 Yes it is 15:50:18 +1 PatH channeling AZ that it's important to keep "name" when doing entailment 15:50:25 q+ to suggest we have dad enough discussions on this and I'd give the token to the RDF Semantics to make proposal for resolving this 15:50:55 s/RDF Semantics/RDF Semantics editors 15:50:58 AZ: Yes, I want entailment attached to the graph name. 15:51:11 ... it's not really a semantics... 15:51:25 ... it defines entailments in line with what I would require ... 15:51:43 q+ 15:52:06 q+ to suggest strawpoll "say nothing about the semantics of datasets" 15:52:07 ack ivan 15:52:48 but then where do other main use cases for named graphs sit? provenance, quoting, etc., all depend on the exact graph, not on equivalent graphs 15:53:24 Suggestion: extend notion of graph entailment to "named graphs", ie pairs, which is entials just when N=N' and G entails G'. Ie entailment but keep the name fixed. 15:53:32 q- 15:54:04 For the sake of advancing on these issues, I'd accept such a compromise, however disappointing it is to me 15:54:34 ack Guus 15:54:34 Guus, you wanted to suggest we have dad enough discussions on this and I'd give the token to the RDF Semantics to make proposal for resolving this 15:54:42 Then we get the preservation of contexts without needing to define a new interpretation for some thing as large as a dataset, and do not risk prematurely fixing relationships between default and named grpahs in ways that might harm other users. 15:55:07 ack cygri 15:55:07 cygri, you wanted to suggest strawpoll "say nothing about the semantics of datasets" 15:55:35 And users can say whether they are using graph entailment (ignore names) or named graph entailment (preserve names) 15:56:06 And (fonally) iondeed we do not give a sematnics for *datasets*. 15:56:22 fonally/finally 15:56:28 s/a/as a/ 15:56:44 I can live with a note 15:56:51 richard: are you suggesting a separate note? 15:57:04 q+ 15:57:12 -PatH 15:57:19 STRAWPOLL: Have no Dataset Semantics (in the lifetime of this WG) 15:57:41 +1 (as long as there is a metadata mechanism) 15:57:53 +0.5 15:57:56 0 15:57:58 +1 15:57:58 abstain 15:57:59 +1 15:58:00 0 15:58:01 0 15:58:02 +1 (same as sandro, mitigated by the fact i still find all that horribly confusing) 15:58:05 +PatH 15:58:09 +0.5 15:58:14 -0 15:58:21 +0.5 15:58:23 +0.5 15:58:27 0 (but think I agree with Sandro's point re: metadata mechanism) 15:58:27 +0 15:59:00 +1 but do have named graph semantics 15:59:06 (keeping it out of the Rec) 15:59:13 +1 (but I do not understand sandro's point) 15:59:24 note(s)/fine if it does not take WG-TC time. 15:59:39 I was on Q before this poll 15:59:51 ack PatH 16:00:45 +1 Pat investigate/propose more on this 16:02:37 topic: Dataset Syntax 16:02:39 -> http://lists.w3.org/Archives/Public/public-rdf-wg/2012Sep/0249.html Dataset Syntax - checking for consensus 16:02:43 q+ 16:02:55 Guus: Lets review status 16:04:01 sandro: it seems to me that there is agreement that we do something in the TriG sparql space 16:04:46 ivan: are you refering to metadata about the dataset or about the named graphs? 16:04:58 sandro: in my mind metadata is stuff that's asserted 16:05:30 ivan: I have a dataset defined in TriG file. I want to say something about the dataset as a whole 16:05:40 q+ 16:06:02 ivan: is it metadata about the whole thing or the named graphs? 16:06:28 ack ivan 16:06:51 q- 16:07:31 NOT REALLY PROPOSED: We will produce a W3C Recommendation for a dataset syntax, similar to TriG and to SPARQL's named graph syntax. 16:07:46 sandro: yep, everyone seems to agree with this 16:08:11 NOT REALLY PROPOSED: We'll request a media-type for this syntax which is different from the media-type for Turtle. (That is, we will not consider this language to supplant Turtle and take over the name, becoming the new "Turtle", as was once proposed.) 16:08:22 Guus: Not sure that we have consus on that one. 16:08:52 sandro: agree, yeah I'm not sure we have consensus on this 16:09:05 NOT REALLY PROPOSED: Our dataset syntax will allow for the expression of empty named graphs, whatever their semantics might be (to be decided). The syntax is an empty curly-braces expression, as in " { }". 16:09:20 sandro: some conversation about what this means 16:11:25 +1 cygri -- if the language turns out rather differnt from TriG, let's give it a differnt name 16:11:28 Tr1G 16:11:29 tr1g 16:11:43 LDP has decided to use Turtle as its default/minimum serialization format, I wonder what it means to introduce yet another format 16:11:45 Tri4 16:12:54 sandro++ 16:14:13 { } 16:14:18 GRAPH { } 16:16:34 +q to make sure the whole default graph thing gets on the agenda 16:17:19 -zwu2 16:18:28 -yvesr 16:18:30 -Ivan 16:18:31 -pfps 16:18:32 -davidwood 16:18:32 -PatH 16:18:33 -cygri 16:18:33 -AlexHall 16:18:35 -Arnaud 16:18:35 -Sandro 16:18:36 -AZ 16:18:38 -gavinc 16:18:40 -MacTed 16:18:42 -gkellogg 16:18:45 -AndyS 16:18:55 trackbot, end meeting 16:18:55 Zakim, list attendees 16:18:55 As of this point the attendees have been Guus, Sandro, EricP, Ivan, AndyS, Arnaud, yvesr, AZ, pchampin, gavinc, +1.408.992.aaaa, davidwood, pfps, cygri, gkellogg, zwu2, 16:18:59 ... +1.443.212.aabb, AlexHall, PatH, MacTed 16:18:59 -EricP 16:19:03 RRSAgent, please draft minutes 16:19:03 I have made the request to generate http://www.w3.org/2012/09/26-rdf-wg-minutes.html trackbot 16:19:04 -pchampin 16:19:04 RRSAgent, bye 16:19:04 I see no action items