14:47:14 RRSAgent has joined #prov 14:47:14 logging to http://www.w3.org/2011/06/23-prov-irc 14:47:16 RRSAgent, make logs world 14:47:16 Zakim has joined #prov 14:47:18 Zakim, this will be 14:47:19 Meeting: Provenance Working Group Teleconference 14:47:19 Date: 23 June 2011 14:47:19 I don't understand 'this will be', trackbot 14:47:59 Zakim, list conferences 14:47:59 I see SW_RDFa()10:00AM, UW_POI(POIWG)10:00AM, Team_Comm()10:30AM active 14:48:01 also scheduled at this time are INC_LLDXG()10:00AM, INC_(DecisionXG)10:00AM, Team_Global(review)8:00AM, SW_HCLS()11:00AM, WAI_PFWG(HTML TF)11:00AM, XML_PMWG()10:00AM, 14:48:05 ... WAI_RDWG()11:00AM, VB_VBWG(CCXML)11:00AM, Team_(test)14:20Z, Styl_XSL-FO-()11:00AM, Math_IG()10:00AM, Team_(audio-webrtc)14:00Z, MM_MMI(EMMA)10:00AM, SW_(PROV)11:00AM, 14:48:08 ... SW_HCLS(TMO)11:00AM, WF_TF()9:00AM, WAI_PFWG(AAPI)10:00AM, I18N_WG(MLW)11:00AM 14:48:34 Zakim, this is SW_(PROV) 14:48:34 pgroth, I see SW_(PROV)11:00AM in the schedule but not yet started. Perhaps you mean "this will be SW_(PROV)". 14:48:49 Zakim, this will be SW_(PROV) 14:48:49 ok, pgroth; I see SW_(PROV)11:00AM scheduled to start in 12 minutes 14:49:47 SW_(PROV)11:00AM has now started 14:49:53 +??P2 14:50:03 Zakim, ??p2 is me 14:50:03 +jorn; got it 14:50:15 Chair: pgroth 14:50:59 + +1.312.348.aaaa 14:51:12 Zakim, who is on the phone? 14:51:12 On the phone I see jorn, +1.312.348.aaaa 14:52:24 +1.312.348.aaaa is me 14:52:44 - +1.312.348.aaaa 14:53:02 Zakim, aaaa is pgroth 14:53:02 sorry, jorn, I do not recognize a party named 'aaaa' 14:53:13 +??P3 14:53:22 Zakim, ??P3 is me 14:53:22 +pgroth; got it 14:53:39 Scribe: Satya Sahoo 14:55:13 Paolo has joined #prov 14:56:26 GK has joined #prov 14:57:36 Yogesh has joined #prov 14:58:04 zednik has joined #prov 14:58:33 + +1.213.290.aabb 14:58:42 +??P4 14:58:47 JimM has joined #prov 14:58:48 Zakim: +??P4 is me 14:59:01 +??P0 14:59:02 zakim, +1.213 is me 14:59:02 +Yogesh; got it 14:59:06 zakim, ??p4 is stain 14:59:06 +stain; got it 14:59:25 zakim, ??p0 is me 14:59:25 +GK; got it 14:59:26 + +1.518.276.aacc 14:59:36 + +1.832.386.aadd 14:59:46 + +1.518.633.aaee 14:59:53 + +1.509.375.aaff 14:59:58 Lena has joined #prov 15:00:05 zakim, +1.518 is me 15:00:05 sorry, JimM, I do not recognize a party named '+1.518' 15:00:28 zakim, +1.518.276.aacc is me 15:00:28 +JimM; got it 15:00:33 I can't find http://www.w3.org/2011/prov/meeting/2011-16-06 as linked to in the agenda 15:00:47 +??P10 15:00:51 StephenCresswell has joined #prov 15:00:57 dgarijo has joined #prov 15:00:59 http://www.w3.org/2011/prov/wiki/Meetings:Telecon2011.06.23 15:00:59 +??P11 15:01:09 tfrancart has joined #prov 15:01:15 stain, you're right 15:01:29 +??P12 15:01:29 Sandro, can you check 15:01:46 +??P13 15:01:59 Zakim, ??P13 is me 15:01:59 +dgarijo; got it 15:02:00 zakim, ??P12 is me 15:02:00 +Paolo; got it 15:02:05 here are the minutes from last week http://www.w3.org/2011/prov/meeting/2011-06-16 15:02:07 http://www.w3.org/2011/prov/meeting/2011-06-16 15:02:09 Previous minutes link in agenda at http://www.w3.org/2011/prov/wiki/Meetings:Telecon2011.06.23 seems to be broken... 15:02:42 GK: it was just magically fixed 15:02:44 SamCoppens has joined #prov 15:02:59 - +1.509.375.aaff 15:03:04 +??P15 15:03:04 where's our Luc! 15:03:20 oh wait, it's pgroth chairing today 15:03:33 zakim, who is speaking? 15:03:39 Regrets: Luc Moreau 15:03:42 very noisy. can't hear a thing 15:03:44 zakim, who is noisy? 15:03:45 jorn, listening for 10 seconds I could not identify any sounds 15:03:55 jorn, listening for 10 seconds I heard sound from the following: GK (73%), Yogesh (31%) 15:04:01 smiles has joined #prov 15:04:07 + +1.509.375.aagg 15:04:15 +[IPcaller] 15:04:32 satya has joined #prov 15:04:45 jcheney has joined #prov 15:04:46 can the people who are typing please mute themselves 15:04:46 @stain Yeah... by the time I got there with a fix it was fixed 15:04:59 Zakim: whois noisy? 15:05:01 + +1.216.368.aahh 15:05:04 satya, are you in the call yet? 15:05:07 Zakim: who is noisy? 15:05:10 zakim, who is noisy? 15:05:17 dcorsar has joined #prov 15:05:21 jorn, listening for 10 seconds I heard sound from the following: GK (33%), Yogesh (34%), pgroth (16%), +1.832.386.aadd (9%), +1.509.375.aagg (16%), +1.216.368.aahh (42%) 15:05:23 :) 15:05:27 +Yolanda 15:05:46 PROPOSED to accept the minutes of 16 Jun telecon 15:05:51 there is a lot of noise ... 15:05:52 zakim, mute Yogesh 15:05:52 Yogesh should now be muted 15:06:08 http://www.w3.org/2011/prov/meeting/2011-06-16 15:06:13 +??P28 15:06:18 +1 15:06:20 +1 15:06:21 +1 15:06:21 +1 15:06:23 +1 15:06:28 +1 15:06:30 (I was not there) 15:06:31 +1 15:06:32 +1 15:06:34 +1 15:06:37 +1 15:06:40 +1 15:06:45 Zakim, who is noisy? 15:06:52 YolandaGil has joined #prov 15:06:56 pgroth, listening for 10 seconds I heard sound from the following: +1.832.386.aadd (37%) 15:07:13 Paul:Minutes of Jun 16 meeting approved 15:07:16 http://www.w3.org/2011/prov/track/actions/open 15:07:30 -Paolo 15:08:06 Paul: Scribes needed for next week's telcon, please volunteer 15:08:43 Paul: Update on the connection task force for the first F2F 15:08:47 +??P12 15:08:48 edoardo has joined #prov 15:08:58 http://www.w3.org/2011/prov/wiki/F2F1_Connection_Proposal 15:08:59 +??P29 15:09:00 zakim, ??P12 is me 15:09:00 +Paolo; got it 15:09:10 zakim, ??P29 is me 15:09:10 +jcheney; got it 15:09:23 catalog: http://www.w3.org/2011/prov/wiki/Connections_Template_Catalog 15:09:44 Kai: Feedback invited for the catalogs created by the connection task force 15:09:51 kai has joined #prov 15:09:55 Kai = Eric 15:09:58 Erik 15:10:21 +??P31 15:10:29 -stain 15:10:36 Zakim: +??P31 is me 15:10:41 +kai 15:10:44 Implementation and Test Cases TF Plan to F2F1 15:10:47 Paul: Update on the implementation and test task force 15:11:03 https://spreadsheets.google.com/spreadsheet/viewform?hl=en_US&formkey=dEp1OVg2REdmLWpSbTlRYks1OFZURVE6MQ#gid=0 15:11:26 Lena: Created forms to elicit feedback from provenance users and stakeholders 15:12:15 Lena: Forms will be used to understand needs of provenance users 15:12:19 +q 15:12:41 iker has joined #prov 15:12:45 ack jcheney 15:13:12 http://www.usenix.org/events/tapp11/tech/final_files/Donaldson.pdf 15:13:18 q- 15:13:33 James: Attended a workshop describing users requirements for provenance use in computing trust 15:14:01 the paper James just referred to: http://www.ics.forth.gr/~gregkar/tapp/papers/Day%202%20-%20Session%205%20-%20Do%20people%20want%20provenance%20and%20are%20they%20prepared%20to%20pay%20for%20it/Provenance,%20End-User%20Trust%20and%20Reuse%20An%20Empirical%20Investigation%20-%20Donaldson%20et.al.pdf 15:14:06 Paul: Update on the Access and Query task force 15:14:15 (I think!) 15:15:06 Simon: Several proposals and still no agreement on any one of them 15:15:45 http://www.w3.org/2011/prov/wiki/F2F1_Access_and_Query_Proposal 15:15:50 q+ 15:15:55 zakim, unmute me 15:15:55 Yogesh should no longer be muted 15:16:08 Simon: Curate the draft for the F2F and create a concrete set of points for further discussion 15:16:48 zakim, mute me 15:16:48 Yogesh should now be muted 15:17:46 (My comment: not *necessarily* a separate service. SImple case is just use URI for provemamce) 15:18:12 Yogesh: Scope for provenance access service needs to be defined 15:19:05 Simon: Close to consensus on the technical points in the draft, but there are still some outstanding issues to be resolved 15:19:36 +q 15:19:43 ack Yogesh 15:19:44 -jorn 15:19:53 q? 15:19:53 find a set of agreed principles 15:20:00 +??P2 15:20:03 zakim, mute me 15:20:03 Yogesh should now be muted 15:20:06 zakim, ??p2 is me 15:20:06 +jorn; got it 15:20:43 ACTION Simon to create a proposal for a set of points of consensus 15:20:43 Sorry, amibiguous username (more than one match) - Simon 15:20:43 Try using a different identifier, such as family name or username (eg. smiles, sdobson2) 15:20:44 Simon: Additional points can be added to the access and query task force draft for discussion in the F2F 15:20:58 ACTION smiles to create a proposal for a set of points of consensus 15:20:59 Created ACTION-12 - Create a proposal for a set of points of consensus [on Simon Miles - due 2011-06-30]. 15:21:13 q+ 15:22:06 Daniel: Will the issues related to provenance from multiple sources (?) be discussed in the F2F? 15:22:07 -q 15:22:07 I guess those are the kind of thing we'll have to extract as general principles 15:22:22 q+ to suggest first nailing down points about which consensus is easy - then move on 15:22:37 zakim, unmute me 15:22:37 Yogesh should no longer be muted 15:23:38 @satya I meant multiple sources describing the provenance of a resource. 15:23:41 zakim, mute me 15:23:41 Yogesh should now be muted 15:23:43 ack Yogesh 15:23:54 zakim, mute me 15:23:54 Yogesh should now be muted 15:23:58 @satya who is reporting on the Model TF? 15:24:03 ack GK 15:24:03 GK, you wanted to suggest first nailing down points about which consensus is easy - then move on 15:24:19 GK: Contentious points can be deferred 15:24:37 @Daniel: thanks for clarifying 15:25:24 Simon: Prioritize issues that can be discussed and resolved in the F2F 15:26:10 Paul: Update on Model task force 15:26:33 @Paul=Paolo 15:26:40 Paolo: Three step plan, (a) cleaning up the provenance concept definitions 15:27:02 ips 15:27:14 Paolo: Conference call tomorrow to discuss the F2F draft 15:27:35 Paolo: (b) Create draft by end of June 15:27:57 Paolo: (c) Put the draft for discussion during F2F 15:28:48 Paul: Definitions derived from CS will make it more complex 15:28:51 +q 15:29:17 Paolo: We can use existing modeling work to define the provenance terms 15:29:56 Paolo: There are inconsistencies in the provenance concept terms 15:31:02 Jim: The definitions are consistent but specific parameters associated with terms are not very clear (?) 15:31:04 q+ 15:31:28 -q 15:32:04 Paolo: Will try to reconcile the different descriptions 15:32:41 Paul: Agreed to derive common sense definitions 15:33:13 Paul: Agreed on the definition of "thing" 15:33:36 q+ 15:34:07 Paolo: Tomorrow's Model task force telcon can help in reconciling the different definitions 15:34:59 Simon: The primer of the WG will help users to understand the provenance concept definitions 15:35:41 @paolo +10 15:35:49 q- 15:36:52 q- 15:37:01 q+ to note a common WG principle is that consensus can be reviewed *iff* there is new information. 15:37:58 Paul: We need to move forward after a consensus is reached 15:38:08 .. almost like a court case 15:38:58 q- 15:39:38 Paolo: Model task force participants will be present at F2F 15:40:52 @satya: agree 15:41:26 + +1.315.330.aaii 15:41:37 tlebo has joined #prov 15:41:40 Paul: Discussion on temporal properties 15:41:50 Temporal Property: Thing proposed Creation time of a thing precedes any of its use times 15:42:15 +1 15:42:16 +1 15:42:20 +1 15:42:21 0 15:42:22 Paul: Should we discuss about temporal properties now? 15:42:27 +1 15:42:29 -1 : none seems controversial to me 15:42:29 0 15:42:30 0 15:42:31 0 15:42:32 +1 15:42:33 0 15:42:35 0 15:42:41 0 15:42:44 0 15:42:50 0 15:42:55 0 15:43:39 Proposed: Creation time of a thing precedes any of its use times 15:43:51 q+ 15:43:52 -1 15:43:53 q+ 15:44:03 Paul: Agreement over the proposed definition? 15:44:21 q+ 15:44:31 q+ 15:44:37 -jcheney 15:44:47 q+ 15:45:10 Zednik: We should be careful about setting restrictions about measurement of the time associated with a thing 15:45:37 +??P29 15:45:37 Agree with not saying too much ... part of more general problem: do we assume provenance is always 100% correct? 15:45:43 zakim, ??P29 is me 15:45:43 +jcheney; got it 15:45:47 Stain: Agrees with stephan zednik 15:46:34 Stain and Paolo: Measurement of time especially in distributed systems may be problematic 15:46:44 q? 15:46:50 q- 15:46:51 ack zednik 15:46:55 ack stain 15:46:59 acd Paolo 15:47:02 ack Paolo 15:47:05 @Stian: I can't believe you just brought relativity into the scope of provenance observations :-)) 15:47:08 ack smiles 15:47:15 q- 15:47:18 q+ (for Paulo) 15:47:22 q? 15:47:23 q+ 15:47:25 Simon: Agrees with past three speakers, seems to be unnecessary 15:47:33 q- 15:47:37 simon: Discussing about this 15:47:39 q 15:47:43 q- 15:47:45 @Paolo - well - if you send a probe on a one-way mission to outer space provenance of its data might be quite important! :) 15:47:48 q? 15:48:06 q- (for Paulo) 15:48:08 Paulo: What kind of time is being discussed - when measurement was done or provenance was recorded 15:48:23 @stain: that's a nice point. 15:48:50 @stian, @dgarijo +1 15:49:29 Paulo: We need to understand the context of the notion of time 15:49:31 +q 15:49:55 -jorn 15:50:09 Ah, yes, pseudo-time? 15:50:26 @JimM - but what about compound accounts? Can you not combine provenances without sorting out the clocks? 15:50:32 Jim: Timestamp is associated with an OPM account 15:50:56 yes 15:50:59 yes 15:50:59 @Paul: yes 15:51:00 yes 15:51:03 no 15:51:06 q+ I think we *can* have provenance without time 15:51:08 Paul: Can we have discussion about provenance without discussing time 15:51:09 yes 15:51:14 I think we *can* have provenance without time 15:51:15 @stain: a judge would have to decide how to synchronize clocks 15:51:23 -q 15:51:27 q+ 15:51:29 +??P2 15:51:33 GK: We can have provenance time 15:51:33 zakim, ??p2 is me 15:51:33 +jorn; got it 15:51:41 I agree with GK. We can but for some domains it is necessary. 15:51:58 yes - prov w/o time is OK, time is a nice annotation...useful evidence supporting provenance 15:52:00 @dgarijo, agreed. 15:52:09 Stian: Likes to have notion of profile 15:52:13 q+ 15:52:16 @stain completely agree 15:52:20 ack stain 15:52:24 ack satya 15:52:40 Stian: Also that you can have provenance without Time (Taverna workflow system has that in current OPM export - but the provenance still makes sense) 15:52:45 better say: as long as timestamps on events are not used for reasoning, that's fine 15:52:49 q+ 15:53:20 q+ 15:53:22 and such a common order might not even exist 15:53:52 would common order matter if there were no hidden dependencies? 15:53:57 Sometimes, you just don't know. If time info is available that that can help. 15:54:24 Tim: When two provenance accounts are being combined, we need to use time 15:54:24 @GK exactly.. it's very useful information - but might not have that luxury or it might be giving wrong indications 15:54:27 indeed you may not be able to synchronize different accounts that are obtained using different clocks 15:54:36 so you need provenance of the timestamps! 15:55:20 @Stian knowledge of which clocks you've used is not necessarily sufficient for this 15:55:56 -jcheney 15:56:00 @Stian: you need provenance of timestamps is your application requires it - it is not a universal requirement 15:56:22 say account1 is a probe orbiting the sun and reporting solar spots. Account2 is the same, but from a telescope at earth. If they also look at some astronomical event, they might not even going to agree on temporal ordering. 15:56:22 For me, this important/interesting thing about this discussion is how to reconcile conflicting provenance accounts; provenance for provenance may help, and may include time and other factors (e.g. trust) 15:56:33 Paul: Is there a need for temporal ordering 15:56:56 SamCoppens has left #prov 15:57:15 GK: It may make sense to talk about provenance without temporal information 15:57:24 if your provenance inferences/assertions do depend on time, you are in trouble 15:57:25 GK: +1 - so we can make time important to the model, but not required 15:57:35 +??P29 15:57:54 if we don't have a model of time, then "traditional provenance" (ie. a lab book) would not be matching our mdoel 15:58:16 timestamps are useful and potentially independent evidence for/against provenance assertions 15:58:19 +1 15:58:20 q+ to add a qualification if consensus can be found 15:58:22 +1 15:58:27 +1 15:58:27 +1 : time stamps addressed, but not required 15:58:31 Paul: Timestamp should be catered for by the model but not required by it 15:58:33 -??P28 15:58:35 +1 to allowing time without over-constraining its semantics 15:58:38 q? 15:58:40 iker has left #prov 15:58:43 ack smiles 15:58:47 q- 15:58:54 -Yogesh 15:59:21 +q 15:59:26 ack GK 15:59:26 GK, you wanted to add a qualification if consensus can be found 15:59:30 ack JimM 15:59:31 is it in the scope of this WG to define what is "required" and what is not? 15:59:32 +1, (subject to consensus qualification) 15:59:56 Yogesh has left #prov 16:00:14 or should we focus on representing what can be useful for representing provenance? 16:00:22 Jim: Time is important parameter of provenance descriptions 16:00:53 (Bruce schneier did some work on secure logs that might eb an alternative approach - but don't want to discuss that) 16:01:05 Jim: Time also helps in computing trust of provenance description 16:01:24 -[IPcaller] 16:01:27 - +1.315.330.aaii 16:01:30 - +1.509.375.aagg 16:01:31 zakim, bye 16:01:37 bye 16:01:38 Zakim has left #prov 16:01:40 leaving. As of this point the attendees were jorn, +1.312.348.aaaa, pgroth, +1.213.290.aabb, Yogesh, stain, GK, +1.832.386.aadd, +1.518.633.aaee, +1.509.375.aaff, JimM, dgarijo, 16:01:40 time is not core to provenance, but it is good evidence 16:01:43 ... Paolo, +1.509.375.aagg, [IPcaller], +1.216.368.aahh, Yolanda, jcheney, kai, +1.315.330.aaii 16:01:48 zakim, make log public 16:01:51 Paolo has left #prov 16:02:02 rrsagent, make log public 16:02:11 rrsagent, draft minutes 16:02:11 I have made the request to generate http://www.w3.org/2011/06/23-prov-minutes.html pgroth 16:03:13 http://www.w3.org/2011/prov/wiki/HowToSetUp 16:04:54 pgroth has left #prov 16:13:02 GK1 has joined #prov 16:13:42 Trying to configure alternative IRC client on this channel 16:14:58 GK1 has left #prov 16:15:01 GK1 has joined #prov 16:15:08 GK1 has left #prov 16:56:13 tfrancart has joined #prov 16:56:28 tfrancart has left #prov