13:09:06 RRSAgent has joined #swcg 13:09:06 logging to http://www.w3.org/2012/01/11-swcg-irc 13:09:08 RRSAgent, make logs world 13:09:08 Zakim has joined #swcg 13:09:10 Zakim, this will be 7924 13:09:10 ok, trackbot; I see SW_CG()9:00AM scheduled to start in 51 minutes 13:09:11 Meeting: Semantic Web Coordination Group Teleconference 13:09:11 Date: 11 January 2012 13:09:33 ivan has changed the topic to: agenda: http://www.w3.org/mid/E8953715-5AD9-49ED-AEEF-CCE8E1E892B2@w3.org 13:10:05 Meeting: Semantic Web Coordination Group Telco 13:10:08 Chair: Ivan 13:10:12 Regrets: Paul 13:40:05 Guus has joined #swcg 13:52:30 mhausenblas has joined #swcg 13:52:41 Luc has joined #swcg 13:57:14 Guus has joined #swcg 13:57:28 tbaker has joined #swcg 13:57:54 [DanBri and I are in Milan, but are connection is too slow/unreliable to join effectively, I'm afraid] 13:58:27 Ashok_Malhotra has joined #swcg 13:58:30 zakim, dial ivan-voip 13:58:30 ok, ivan; the call is being made 13:58:31 SW_CG()9:00AM has now started 13:58:32 +Ivan 13:58:34 LeeF has joined #swcg 13:59:06 +LeeF 13:59:16 +Ashok_Malhotra 13:59:27 +Luc 13:59:29 +mhausenblas 14:00:12 +sandro 14:00:28 + +1.860.326.aaaa 14:00:43 zakim, aaaa is Vijay 14:00:43 +Vijay; got it 14:01:43 zakim, who is noisy 14:01:43 I don't understand 'who is noisy', ivan 14:01:49 zakim, who is noisy? 14:01:49 it was me ;-) 14:02:00 ivan, listening for 10 seconds I heard sound from the following: Ashok_Malhotra (9%), mhausenblas (30%), sandro (35%) 14:03:29 +davidwood 14:03:48 Good morning Ivan 14:03:57 zakim, davidwood also has bhyland 14:03:57 +bhyland; got it 14:04:18 scribe: sandro 14:05:05 Topic: admin 14:05:11 -> http://www.w3.org/2011/12/14-swcg-minutes.html minutes of last meeting 14:05:32 bhyland has joined #swcg 14:05:32 +1 14:05:45 Topic: next meeting 14:05:52 RESOLVED: accept http://www.w3.org/2011/12/14-swcg-minutes.html as minutes of last week 14:05:57 s/meet/meeting/ 14:06:01 2012 jan 25 14:06:23 Topic: congrats 14:06:24 next script: tom or david 14:06:36 regrets for next next meeting from me and Bern. 14:07:00 ivan: congrats 14:07:11 ivan: RDFa, SPARQL, ... 14:07:16 ivan: Provenance 14:07:25 ivan: prov-o and prov-primer FPWD 14:07:31 thanks, Ivan 14:07:41 Topic: FPWD intro 14:08:11 ivan: RDFa lite. alas, no Manu today. 14:08:41 ... you probably heard about the schema.org discussions, happy ending is this simple subset of RDFa 14:09:07 ... a few attributes, and some advice to publishers, to stick to these simple attributes for simple things. 14:09:17 ... cannot set datatypes or do complex structures 14:09:21 ... for simple things it's very simple 14:09:32 ... similar complexity to microdata 14:10:07 ... schema.org has publically said they will encourage their users to use RDFa lite 14:10:30 ... will encourage to the same degree as microdata 14:10:45 davidwood: Alas, that's not actually reflected in their documentation yet. 14:11:20 +[IPcaller] 14:11:24 +Tom_Baker (was [IPcaller]) 14:12:52 ivan: Goal is for RDFa lite to be its own Recommendation. For people authoring RDFa, it should stand on its own. 14:13:23 Provenance Data Model (prov-dm): http://www.w3.org/TR/prov-dm/ 14:13:23 Jeni Tennison ran a tak force on RDFa and Microdata 14:13:25 about RDFa & schema.org: DanBi is very optimistic, but he suggests not to shout about it yet 14:13:38 s/tak/task/ 14:13:41 http://www.w3.org/TR/prov-aq/ http://www.w3.org/TR/prov-primer/ 14:13:43 Provenance Ontology (prov-o): http://www.w3.org/TR/prov-o/ 14:14:06 sandro: prov-o is a mapping of prov data model to OWL 2 14:14:07 Provenance Primer (prov-primer): http://www.w3.org/TR/prov-primer/ 14:14:30 Provenance Access and Query (prov-aq): http://www.w3.org/TR/prov-aq/ 14:14:57 luc: Once you have obtained a resource, aq tells you how to find out about its provenance. 14:15:11 ... including SPARQL querying 14:15:13 q+ 14:15:19 ack ivan 14:15:59 ivan: On prov-aq it raises some concern, because there has been a lot of discussion of HTTP protocols, SPARQL REST, Linked Data Platform 14:16:19 ... have you checked/seen/sync'd about all that? 14:16:32 ... eg in LDP charter, ways to get info about datasets through HTTP. 14:17:08 Luc: I'm aware of HTTP protocol for SPARQL. Not sure about other points. 14:17:34 ... it would be useful to get feedback from other WGs 14:17:59 ... to see how what we're proposing integrates with other systems 14:18:10 Luc: any specific people 14:18:24 Sandro is at the nexus of all of this :-D 14:19:04 sandro: I'll probably review at least while I'm en route to Prov F2F 14:19:58 lee: I'll ask the SPARQL group for volunteers to review http://www.w3.org/TR/prov-aq/ 14:20:18 "503 Service Unavailable" 14:20:27 sandro: rdf wg too 14:20:45 better now 14:20:58 -Vijay 14:20:58 luc: not the right time yet. we haven't settled our notion of "accounts", which is likely to related to named graphs 14:21:04 yup 14:22:17 Prov F2F in Amsterdam Feb 2/3. 14:22:24 Topic: Linked Data WG, Workshop 14:22:58 q+ to ask re time line and chairs 14:23:23 ivan: I heard Linked Data Patterns workshop was lively and good 14:23:49 Linked Enterprise Data Patterns Workshop: http://www.w3.org/2011/09/LinkedData/ 14:24:02 Workshop report: http://www.w3.org/2011/09/LinkedData/Report 14:24:11 ivan: advance notice went to AC that we are working on this. 14:24:15 -> https://lists.w3.org/Archives/Member/w3c-ac-members/2011OctDec/0064.html announcement to the AC 14:24:17 TimBL also attended both days 14:24:44 -> https://www.w3.org/2012/01/ldwg-charter.html very initial charter 14:24:49 ivan: I tried to summarize from the outside what I saw as a possible initial charter 14:25:47 davidwood: Cochairs were Ashok, Arnaud, and myself, with lots of help from EricP 14:25:59 davidwood: Martin Nally, CTO of IBM Rational 14:26:11 david: Brad Allen from Elsevier 14:26:27 ... enterprise participation 14:26:46 ... theory was that as enterprises began to use Linked Data techniques internally, to solve problems, 14:26:54 ... they would fall into same problems/patterns 14:27:04 ... 1. data integration 14:27:27 ... integration of enterprise software, never meant to work together, but with APIs 14:27:40 ... lingua franca without enterprise service bus 14:27:48 ... this is what IBM Rational is doing 14:28:02 ... others are doing just data integration. 14:28:11 ... workshop reports lists some of the useful patterns 14:28:19 ... see position papers for the rest 14:28:19 Workshop papers: http://www.w3.org/2011/09/LinkedData/Papers 14:28:50 Guus has joined #swcg 14:28:57 auth/auth 14:29:17 davidwood: Eg, how do people do authentication and authorization? 14:29:32 ... people are still thinking in their enterprise mentality, not the Web way 14:29:50 ... clear exceptions to that, but avg enterprise is mired in older solutions 14:30:24 ... once we got to thinking Web way, we got into some patterns about how to update data, separate data from metadata, patch information 14:30:40 ... surprosing interest in defining exactly what Linked Data means in an enterprise context 14:30:47 ... defining a Minimal Linked Data service 14:31:21 Ashok_Malhotra: What was really wonderful was that we had people there USING linked data to do REAL and complicated things 14:31:28 +1 to Ashok 14:31:33 ... and they were running into some difficulties 14:31:54 +George 14:31:58 ... the IBM folks had come up with some ideas about extending REST, doing different ATOM-linke things with RDF 14:32:22 IBM also said that DB2 will support RDF "sometime in 2012" 14:32:22 ... the feeling was that we ought to be able to look at these patterns, these people's experiences, then codify them. Write them down, to help other people 14:32:33 q? 14:35:08 sandro: It was very exciting to see this RDF+REST as universal API theory finally manifest as real products 14:35:21 ack mhausenblas 14:35:21 mhausenblas, you wanted to ask re time line and chairs 14:35:23 bern: this should be a keynote at SemTech SF for Martin Nally 14:35:25 Michael: Two remarks and questions re the upcoming LD WG - 1. questions re timeline and chairs, 2. liaison/alignment with http://www.w3.org/community/networked-data/ 14:36:56 Correction: I suggested to Tony that there be a keynote at SemTech West by the three co-chairs from the Linking Enterprise Data Patterns workshop, namely Ashok Malhotra, Arnaud Le Hors (IBM) and Dave Wood. 14:37:27 ivan: prelim timeline is workshop report to come out this week 14:37:28 Shortly after I suggested this to Tony, I heard Dave & Ashok spoke and Martin Nally has been approached for the keynote 14:37:55 by Tony presumably. 14:37:56 ivan: Ian Jacobs did an interview with Arnaud, also for publication this week 14:38:21 ivan: when & how consensus on charter? 14:38:44 ivan: possibly to AC by end of month... maybe.... voting takes a month. 14:38:53 ivan: Could potentially start in March. 14:38:54 q+ 14:39:13 q? 14:40:00 ack sandro 14:40:47 sandro: Member submission expected from IBM. 14:40:59 ashok: It requires some legal agreements, holding us up. 14:41:22 sandro: So I think Ivan's timeline may be somewhat optimistic given that. 14:41:42 Networked Data Community Group: http://www.w3.org/community/networked-data/ 14:42:56 ivan: This community group is interesting. 14:43:23 ivan: Ideally, my preference would be this CG folks into WG, if the WG materializes 14:43:49 mhausenblas: Makes sense. 14:44:13 ivan: The draft charter should be member visible or public soon 14:44:31 ivan: So this is a time the CG can give us the comments, to make that synergy easier 14:45:44 ... on the charter itself, based on my reading of some of the emails, so I'd like feedback about whether this really reflects what was discussed there. feedback, please! 14:45:55 ... comments in email are welcome too, of course 14:46:07 Ashok_Malhotra: I have a couple of comments 14:46:23 "provide a standard environment" 14:46:31 ... I think it's a reasonable charter. On thing jumped out at me: "provide a standard environment" 14:46:42 ... it sounds like we're building a development envionrment 14:46:50 Michael: One quick comment re the charter ... copy & paste error in section 10: "This charter for the Government Linked Data Working Group ..." 14:46:52 ... and we're not. we're just codifying some patterns. 14:47:04 ... so "standard environment" is slightly misleading. 14:47:32 ... and as David pointed out, one of the big problems we're going after is Application Integration, and that's not here. 14:47:54 ivan: Can one of you guys suggest, soon, some language to help make that clear? 14:48:19 ... I learned today that the software integration part is not clear in the charter, and should be made clearer. 14:48:34 ... I'm not sure how to exactly formulate that. 14:48:50 q+ to add two comments re the content 14:49:21 This is my big concern as well!! 14:50:01 ... one more thing: I don't want this to crowd out the other Semantic Web work, or to make people concerned that it might 14:50:02 q+ 14:50:04 ack mhausenblas 14:50:04 mhausenblas, you wanted to add two comments re the content 14:50:05 Michael: re "Define a mechanism for advertizing SPARQL endpoints" ... 1. new HTTP headers are costly, almost impossible to *deploy on the Web*. 2. re SPARQL SD and VoID 14:50:47 q+ to ask if provenance should be mentioned 14:51:11 mhausenblas: I don't see a reason to define a new vocab here... 14:52:27 Michael: http://www.w3.org/2009/sparql/wiki/CommentResponse:MH-1 14:53:39 ack bhyland 14:53:43 q? 14:53:51 sandro: mhausenblas let's you and I take this off line and see if we can make this service description bit happen within SPARQL. 14:54:06 Michael: I agree and thanks for this, Sandro 14:54:27 bhyland: This WG is about the use of Linked Data in Enterprise, and with Patterns. 14:54:43 q? 14:54:53 bhyland: I associate with "Linked Data" a certain set of stuff, and we don't want to throw all this at them. 14:55:10 bhyland: GLD is very prescriptive, esp on Linked Open Data. 14:55:11 q+ 14:55:20 q+ to say "Linked Data Platform" 14:55:56 bhyland: needs to be narrowed down from all of "Linked Data". comm group also very broard. 14:56:36 bhyland: Charter needs some iteration to get the focus clear. Enterprise product managers to be involved. 14:56:37 ace Luc 14:56:38 FWIW, I thought that at the workshop there was a great deal of non-enterprise linked data stuff (in addition to some enterprise linked data stuff) 14:56:41 ack Luc 14:56:41 Luc, you wanted to ask if provenance should be mentioned 14:56:51 Luc: Was there any mention of provenance? 14:57:31 luc: Prov WG wont standardize everything; maybe this group needs to do some for Prov with linked data. 14:58:13 davidwood: There was lots of talk, the desire for Prov. Revelytix talk covered it a bit. It would be interesting, but how it fits into the charter isn't clear to me. 14:58:51 luc: I don't have concrete ideas at this stage, but it would be interesting. 14:59:31 ivan: One of the threads of this charter ... (lost) 14:59:39 ack sandro 14:59:39 sandro, you wanted to say "Linked Data Platform" 15:00:05 luc: rev doing prov-o spec 15:01:11 http://www.w3.org/2001/sw/wiki/REST 15:01:21 Sandro: Balancing technical ideas for this proposed group and W3C role. RDF + REST as "universal API", a new version of a distributed object system (without baggage). 15:01:53 sandro: That's my intution for the kind of thing the group should be producing. 15:02:28 ivan: Sandro and I will work on this, going forward. 15:02:51 ivan: When we get to member feedback, we will need a good address list of people we should be sure know about this work,. 15:02:57 I just mailed the LD WG mailing list noting that we need language for the inclusion of software/application integration: http://lists.w3.org/Archives/Public/public-ldp/2012Jan/0000.html 15:03:22 ivan: If you know of folks who should be involved, be sure to let us know, please. 15:03:38 What I really like about this proposed group is that it commercial companies solving real complex problems with RDF and RESTful approach. Very cool. Congrats to all that attended & are moving this forward :-) 15:04:02 ivan: There is a mailing list, for comments on the charter: public-ldp@w3.org 15:04:21 -Luc 15:04:21 bye all. 15:04:22 -Tom_Baker 15:04:24 -George 15:04:27 -LeeF 15:04:29 -Ashok_Malhotra 15:04:31 -davidwood 15:04:53 -mhausenblas 15:06:51 mhausenblas, email for now please. 15:07:18 OK 15:20:15 -sandro 15:20:17 -Ivan 15:20:17 SW_CG()9:00AM has ended 15:20:19 Attendees were Ivan, LeeF, Ashok_Malhotra, Luc, mhausenblas, sandro, +1.860.326.aaaa, Vijay, davidwood, bhyland, Tom_Baker, George 15:23:13 rrsagent, draft minutes 15:23:13 I have made the request to generate http://www.w3.org/2012/01/11-swcg-minutes.html ivan