14:50:26 RRSAgent has joined #prov 14:50:26 logging to http://www.w3.org/2012/09/20-prov-irc 14:50:28 RRSAgent, make logs world 14:50:28 Zakim has joined #prov 14:50:30 Zakim, this will be 14:50:30 I don't understand 'this will be', trackbot 14:50:31 Meeting: Provenance Working Group Teleconference 14:50:31 Date: 20 September 2012 14:50:33 Zakim, this will be PROV 14:50:33 ok, pgroth; I see SW_(PROV)11:00AM scheduled to start in 10 minutes 14:50:51 Agenda: http://www.w3.org/2011/prov/wiki/Meetings:Telecon2012.09.20 14:50:58 Chair: Paul Groth 14:51:10 Scribe: Tom De Nies 14:51:20 rrsagent, make logs public 14:51:46 Regrets: James Cheney, Curt Tilmes, Ivan Herman 14:53:57 Dong has joined #prov 14:54:57 SW_(PROV)11:00AM has now started 14:55:04 +??P9 14:55:12 Zakim, ??P9 is me 14:55:12 +pgroth; got it 14:55:13 Luc has joined #prov 14:58:04 +[IPcaller] 14:58:26 zakim, [IPcaller] is me 14:58:26 +Luc; got it 14:58:35 zakim, who is on the call? 14:58:35 On the phone I see pgroth, Luc 14:59:10 TomDN has joined #prov 14:59:51 +??P11 15:00:00 christine has joined #prov 15:00:13 +[IPcaller] 15:00:22 jun has joined #prov 15:00:23 zakim, ipcaller is me 15:00:23 +TomDN; got it 15:00:55 zakim, who is on the phone? 15:00:55 On the phone I see pgroth, Luc, ??P11, TomDN 15:01:06 Zakim, who is loud? 15:01:06 I don't understand your question, pgroth. 15:01:11 Zakim, who is noisy? 15:01:21 pgroth, listening for 10 seconds I heard sound from the following: TomDN (65%) 15:01:23 +OpenLink_Software 15:01:24 +??P25 15:01:30 Zakim, OpenLink_Software is temporarily me 15:01:30 +MacTed; got it 15:01:32 zakim, ??P25 is me 15:01:32 Zakim, mute me 15:01:32 +jun; got it 15:01:34 yes 15:01:34 MacTed should now be muted 15:01:50 Topic: Admin 15:02:37 http://www.w3.org/2011/prov/meeting/2012-09-13 15:02:46 pgroth: approval of last week's minutes 15:02:48 Minutes of the September 13, 2012 Telecon 15:02:58 +1 15:03:03 +1 15:03:08 +1 15:03:37 accepted: Minutes of the September 13, 2012 Telecon 15:03:52 zednik has joined #prov 15:04:31 Topic: Charter Extension 15:04:39 pgroth: we need scribes, please sign up in advance 15:04:47 +[IPcaller] 15:05:03 pgroth: We are close to the end of the charter, but our extension request was approved 15:05:14 http://www.w3.org/2011/01/prov-wg-charter 15:05:19 + +1.315.330.aaaa 15:05:29 ... initially, we wanted it up to April/May, but we got an extension to september 2013 15:05:57 ... However, we're still aiming to deliver everything according to the schedule agreed at F2F3 15:06:18 +q 15:06:19 ... We will make an updated timeline some time next week 15:06:21 q- 15:06:23 q? 15:06:37 Topic: FAQ 15:07:03 pgroth: Last week, we had an action to make an FAQ on PROV 15:07:12 http://www.w3.org/2001/sw/wiki/PROV 15:07:19 CraigTrim has joined #PROV 15:07:24 ... Among others, the use of dc:hasPart for sub-activities is in there 15:07:55 ... the WG is invited to populate this FAQ 15:07:58 +q 15:08:00 q? 15:08:03 ack pgroth 15:08:12 q? 15:08:45 q? 15:08:49 pgroth: This is at the Semantic Web activity wiki, which means that we can keep updating this, even after the WG is finished 15:08:55 Topic: PROV-XML 15:09:38 pgroth: There were a couple of issues that we didn't resolve last week, perhaps Stephan can go over them 15:10:00 http://www.w3.org/2011/prov/track/issues/493 15:10:23 pgroth: Where are we in issue 493? 15:10:41 zednik: Right now the schema reflects the DM completely 15:11:04 ... We didn't want to move away from the DM, so we haven't made any changes in the schema 15:11:51 ... We use RDF types, to respresent type information, as it is the most natural/intuitive way 15:12:13 ... We are still discussing. 15:12:30 q+ 15:12:34 pgroth: So each serialization can have its own type. Do we all agree to this? 15:12:55 zednik: Not sure, the telecon on monday was too small to tell if everyone agrees 15:13:13 Luc: We don't want to be too restrictive for these types 15:13:23 ... to avoid overconstraining things. 15:14:08 ... In the ontology, we use RDF types, which is fine for the RDF mapping, but I'm not sure what we should use in XML 15:14:10 q? 15:14:12 ack Luc 15:14:18 ... It would be up to the translator to determine this. 15:15:06 pgroth: Seems like a good idea, except that it would be problematic to convert PROV-XML to RDF, if the types don't agree 15:15:16 in xml, we have prov:type and not xsd:type 15:15:26 in xml, we have prov:type and not xsi:type 15:15:41 zednik: We don't have a complex type for agents that are also entities 15:15:55 ... e.g. "this is an entity with type agent" 15:16:23 pgroth: So the resolution would be to leave things as they are: loose like in the DM. 15:16:36 ... and leave typing up to the implementer 15:17:21 Luc: elaborates on "in xml, we have prov:type and not xsi:type" 15:17:30 ... which is an xml attribute 15:17:46 zednik: so you can only have one? 15:18:02 ... That is not the case in the DM or ontology 15:18:26 proposed: leave prov-dm to allow for loose types and each serialisation should define their own type system 15:18:29 tlebo has joined #prov 15:18:37 zakim, who is on the phone? 15:18:37 On the phone I see pgroth, Luc, ??P11, TomDN, MacTed (muted), jun, [IPcaller], +1.315.330.aaaa 15:18:40 q+ 15:18:45 zakim, I am aaaa 15:18:45 +tlebo; got it 15:18:58 zakim, ??P11 is me 15:18:58 +christine; got it 15:19:06 proposed: leave prov-dm to allow for loose types and each serialisation should adopt their own type representation 15:19:14 Luc: it would be better to say "should adopt their own type representation" 15:19:17 +1 15:19:19 +1 15:19:21 q- 15:19:21 +1 15:19:24 +1 15:19:30 +1 15:19:49 accepted: leave prov-dm to allow for loose types and each serialisation should adopt their own type representation 15:20:04 pgroth: that resolves issue 493 15:20:09 http://www.w3.org/2011/prov/track/issues/551 15:20:11 issue 551? 15:20:44 zednik: Curt made some changes to the schema that resolved this 15:20:52 I think it was a good solution to introduce this documentElement 15:21:26 ... It basically flattened out the schema 15:21:31 div: http://dvcs.w3.org/hg/prov/rev/b88f0f02344f 15:21:57 ... so you don't have a separate section for the relations 15:22:03 q+ 15:22:07 pgroth: Were there any objections? 15:22:11 zednik: no 15:22:14 ack Luc 15:23:14 Luc: There was some refactoring of the schema that took place. All the attributes were placed in a single group "commonattributes" 15:23:47 zednik: We havent been able to talk about it in the group, so we should probably raise an issue about it 15:24:30 +q 15:24:33 sorry i missed that last 15:25:13 pgroth: I think we did have a resolution about how close you have to get to the DM in a serialization 15:25:48 ack pgroth 15:26:01 ... If we favour something that's "natural" for RDF, we should do the same for XML 15:26:36 zednik: Since you can have attributes on almost anything, we grouped it as such 15:27:01 ... I think it's doable to revert, although it unsimplifies the schema. 15:27:01 it's already done http://dvcs.w3.org/hg/prov/rev/7c238aba1d07 15:27:10 q+ 15:28:09 Luc: the group commonattributes has been removed from the schema 15:28:10 ack Luc 15:28:13 q- 15:28:39 pgroth: So how far are we away from a draft document? 15:28:51 zednik: So how ready/stable is the schema? 15:29:33 ... Well, Curt and I have been going through the issues. Most are resolved now, so it is pretty stable. 15:29:41 there is still the type of identifiers to address 15:30:18 Zednik: So we are getting close to being able to start on the draft of the Note 15:30:30 q+ 15:30:34 pgroth: OK, we'll check back next week 15:30:37 ack Luc 15:30:44 Luc: Will there be a call on monday? 15:31:06 zednik: Curt can't make it, but I can, and will send out an email to ask if it's possible. 15:31:09 q- 15:31:13 Topic: Resolving Public Issues 15:31:20 dgarijo has joined #prov 15:31:31 http://www.w3.org/2011/prov/wiki/ResponsesToPublicComments 15:31:52 +??P12 15:31:56 pgroth: We need to clarify who is responsible for response to public comments. 15:32:08 Zakim, ??P12 is me 15:32:08 +dgarijo; got it 15:32:12 q? 15:32:19 ... My tendency would be to have me or Luc do it. 15:32:22 q+ 15:32:26 ... Any other suggestions? 15:33:10 tlebo: It would be best if we work at the response on the weekly telecons, and then consistently have the chairs formulate the response to the commenter 15:33:23 +1 15:33:33 pgroth: Any objections to this? 15:33:52 note: "formulate" -> "provide", naturally, the group would be formulating the response in our usual way. 15:33:59 pgroth: So it's agreed. Paul will handle the responses 15:34:50 Luc: There were no objections to the resolutions to the following issues: 15:35:33 ... (Lists the issues) 15:36:04 http://www.w3.org/2011/prov/wiki/ResponsesToPublicComments 15:36:24 accepted: the suggested resolutions in http://www.w3.org/2011/prov/wiki/ResponsesToPublicComments to ISSUE-532, ISSUE-525, ISSUE-507, ISSUE-504, ISSUE-503, ISSUE-447 were accepted as responses by the working group. there were no objections to the resolutions on the mailing group only support 15:38:00 q? 15:38:05 ack tlebo 15:38:11 q- 15:38:12 Luc: I'm happy to take feedback on the proposed responses now, but I will also follow the usual protocol, and ask for feedback on the mailinglist 15:38:35 q? 15:38:36 ... If there's no objections by next Thursday, those will be our responses. 15:38:49 s/Thursday/Tuesday 15:38:55 tnx 15:38:56 q? 15:39:18 thanks for the links, I'll have a look at the responses. 15:40:11 Luc: We have addressed about 10 of the 35 issues about the DM. I'm planning to draft responses next week 15:40:56 Topic: Prov-o issues 15:41:32 pgroth: Last week, on Monday, we tried to clean up some issues in PROV-O, and defined some actions 15:41:45 ... We will walk through them here 15:41:54 http://www.w3.org/2011/prov/track/issues/491 15:42:13 stian? 15:42:25 ... Stian was going to handle ACTION-107, I will follow up on this with him 15:42:46 the trig example. 15:42:48 issue 479? 15:42:53 http://www.w3.org/2011/prov/track/issues/479 15:43:25 issue-479? 15:43:25 ISSUE-479 -- cite TriG for examples -- open 15:43:25 http://www.w3.org/2011/prov/track/issues/479 15:44:04 ... Satya was going to take ACTION-108. No changes have been made yet, will follow up. 15:44:18 (tnx macted, forgot the hyphen) 15:44:59 pgroth: Next one is ACTION-109 on issue-349 15:45:23 Jun: I took over David's actions 15:45:31 ... and ACTION-109 is done. 15:45:54 issue-349? 15:45:54 ISSUE-349 -- examples for each term in cross-reference section -- open 15:45:54 http://www.w3.org/2011/prov/track/issues/349 15:46:30 pgroth: There were two more actions for this issue: ACTION-110 and ACTION-111 for Satya and Stian 15:46:30 we reviewed the examples to check that they were updated with the latest DM 15:46:49 tlebo: I've seen no changes to the examples yet. 15:47:12 ... also. ACTION-112 was on the same issue 15:47:34 daniel? 15:47:35 pgroth: last one was on Daniel, ACTION-113 about issue 446 15:47:40 I have lost connection 15:47:43 issue-446? 15:47:43 ISSUE-446 -- prov:involvee not documented in PROV-O -- open 15:47:43 http://www.w3.org/2011/prov/track/issues/446 15:47:44 daniels' action 113 is "prov:involvee not documented in PROV-O" 15:47:50 I have restarted the discussions 15:47:57 with Kai, Simon and Michael 15:48:09 we plan to address his comments next week 15:48:16 -dgarijo 15:48:34 +??P12 15:48:45 pgroth: Tim, do you need help on closing any other issues? 15:49:15 tlebo: Yes, could use help with issue 461 15:49:20 issue-461? 15:49:20 ISSUE-461 -- provo cross reference inadequate in printed form -- raised 15:49:20 http://www.w3.org/2011/prov/track/issues/461 15:49:43 ... Would be nice if someone could take over this one. 15:50:15 pgroth: Someone needs to talk to Graham to identify what he needs 15:50:22 jun: I can do that 15:50:55 +q 15:51:19 pgroth: It would be good to know all the remaining issues on PROV-O 15:51:39 http://www.w3.org/2011/prov/track/products/10 15:52:18 tlebo: 349 is closed 15:52:40 ... Not sure about 446, 479 and 491 15:53:29 daniel: What happened with the issues about the figures? 15:54:04 tlebo: There's no formal issue, but it is being looked into 15:54:21 ack dgarijo 15:54:22 ... now waiting on review of the changes made in the draft 15:54:40 http://www.w3.org/2011/prov/track/issues/552 15:54:58 pgroth: 552 was an external comment about subclasses 15:55:12 issue-552? 15:55:12 ISSUE-552 -- Check subclass definitions in prov-o -- raised 15:55:12 http://www.w3.org/2011/prov/track/issues/552 15:55:12 ... Is this a DM issue or PROV-O issue? 15:55:27 issue-523? 15:55:27 ISSUE-523 -- Data Model Section 5.3.5 -- open 15:55:27 http://www.w3.org/2011/prov/track/issues/523 15:56:01 q+ 15:56:09 http://lists.w3.org/Archives/Public/public-prov-comments/2012Sep/0000.html 15:56:25 tlebo: seems like a problem with the interpretation of the DM, so it is a PROV-O issue 15:56:27 ack Luc 15:56:37 Thank you Paul, Luc and everyone. Apologies, I have to leave to chair a call starting on the hour. 15:56:46 -christine 15:56:54 Luc: I think there's a general problem about inheritance that we may want to revisit in the DM 15:57:18 ... , illustrated by issue 523, about influence 15:58:37 ... In the constraints, we say that IF wasDerivedFrom(b,a) THEN wasInfluencedBy(b,a) 15:59:02 ... So we may want to opt for inheritance, which is what PROV-O does 15:59:12 q+ 15:59:28 ... and it works well for most ontologies I think. However, I am not sure if we'd also want it in PROV-XML 15:59:50 ... Would be nice to have feedback here. 15:59:52 +1 to what luc said 16:00:07 pgroth: Would that only apply to influence? or all of the DM? 16:00:20 Luc: I'm focusing on influence, currently 16:00:47 does "influence" == "relation" ? 16:01:13 pgroth: My only issue with that is: whether or not we would change the UML in correspondence with that 16:01:36 ... It may not be normative, but developers do use it for their implementations 16:01:38 ack pgroth 16:01:50 [have to go now. will catch up on the minutes] 16:02:07 -jun 16:02:09 Luc: any subtype of influence can be used in any position of influence. 16:02:39 ... Perhaps "interface" would be better than inheritance 16:03:07 ... to indicate that all subtypes are all "influence" 16:04:11 issue-552? 16:04:11 ISSUE-552 -- Check subclass definitions in prov-o -- raised 16:04:11 http://www.w3.org/2011/prov/track/issues/552 16:04:41 pgroth: For now, this issue should be considered together with issue-523 16:05:04 Luc: There's another issue in the DM, dealing with inheritance 16:05:21 ... So we should tackle these as a set. 16:05:51 Luc: Stephan, working with the XML schema, have you considered extension of types? 16:06:16 q? 16:06:22 zednik: It has come up, but we haven't looked into it. It should be done after the schema is stabilized. 16:06:58 Sure 16:07:02 -MacTed 16:07:07 pgroth: Given the time, we will save the topic on notes for next week. 16:07:11 -tlebo 16:07:12 -pgroth 16:07:13 -Luc 16:07:14 ok, tnx! 16:07:15 -??P12 16:07:16 bye 16:07:25 -TomDN 16:07:32 rrsagnet, set log public 16:07:40 rrsagent, set log public 16:07:52 rrsagent, draft minutes 16:07:52 I have made the request to generate http://www.w3.org/2012/09/20-prov-minutes.html pgroth 16:08:04 -[IPcaller] 16:08:04 trackbot, end telcon 16:08:04 Zakim, list attendees 16:08:05 SW_(PROV)11:00AM has ended 16:08:05 Attendees were pgroth, Luc, TomDN, MacTed, jun, [IPcaller], +1.315.330.aaaa, tlebo, christine, dgarijo 16:08:05 sorry, trackbot, I don't know what conference this is 16:08:12 RRSAgent, please draft minutes 16:08:12 I have made the request to generate http://www.w3.org/2012/09/20-prov-minutes.html trackbot 16:08:13 RRSAgent, bye 16:08:13 I see no action items