14:57:46 RRSAgent has joined #sparql 14:57:46 logging to http://www.w3.org/2010/12/21-sparql-irc 14:57:52 RRSAgent, make logs world 14:57:54 bglimm has joined #sparql 14:57:56 zakim, this will be SPARQL 14:57:56 ok, LeeF; I see SW_(SPARQL)10:00AM scheduled to start in 3 minutes 14:58:06 SW_(SPARQL)10:00AM has now started 14:58:08 Meeting: SPARQL Working Group Weekly Teleconference 14:58:10 Chair: LeeF 14:58:12 Scribe: Axel 14:58:14 + +44.208.439.aaaa 14:58:19 Scribenick: AxelPolleres 14:58:21 Zakim, aaaa is me 14:58:21 +SteveH_; got it 14:58:28 Date: 2010-12-20 14:58:45 +??P3 14:58:45 MattPerry has joined #sparql 14:58:48 hmm 14:58:49 that's not the date 14:58:51 Date: 2010-12-21 14:58:54 Agenda: Agenda: 14:58:55 zakim, ??P3 is me 14:58:55 +cbuilara; got it 14:58:57 bijan has joined #sparql 14:59:00 Agenda: http://www.w3.org/2009/sparql/wiki/Agenda-2010-12-21 14:59:06 cbuilara, you have mic problems 14:59:20 +??P4 14:59:23 ok I will solve them, just a sec 14:59:24 zakim, code? 14:59:24 the conference code is 77277 (tel:+1.617.761.6200 tel:+33.4.26.46.79.03 tel:+44.203.318.0479), LeeF 14:59:29 Zakim, ??P4 is me 14:59:29 +bglimm; got it 14:59:31 + +1.310.729.aabb 14:59:38 Zakim, aabb is me 14:59:38 +kasei; got it 14:59:50 AxelPolleres has joined #sparql 14:59:50 +Sandro 14:59:54 Zakim, SteveH_ is me 14:59:54 +SteveH; got it 15:00:05 + +1.617.553.aacc 15:00:08 zakim, aacc is me 15:00:08 +LeeF; got it 15:00:21 Zakim, mute me 15:00:21 bglimm should now be muted 15:00:22 Having some trouble dialing in 15:00:24 zakim, who's on the phone? 15:00:24 On the phone I see SteveH, cbuilara, bglimm (muted), kasei, Sandro, LeeF 15:00:27 +AxelPolleres 15:00:32 bijan, which # are you trying? 15:00:35 chimezie has joined #sparql 15:00:39 It's on my end :) 15:00:41 But cambridge 15:00:43 zakim is not getting to the second part of the message. 15:00:49 Zakim, what is the pass code? 15:00:51 the conference code is 77277 (tel:+1.617.761.6200 tel:+33.4.26.46.79.03 tel:+44.203.318.0479), chimezie 15:00:59 Bijan, UK is mostly not working, I usually try France 15:01:03 Workign on it 15:01:05 +33.4.26.46.79.03 15:01:06 I'm in the states 15:01:10 I got in on the london number ok 15:01:11 Ah, ok 15:01:14 Hence not with my normal setup 15:01:20 +??P12 15:01:26 zakim, ??P12 is me 15:01:26 +AndyS; got it 15:01:32 +Chimezie_Ogbuji 15:01:36 Lee, as mentioned, I can srcibe (alex regrets...) 15:01:39 ok? 15:01:41 zakim, who's speaking? 15:01:50 AxelPolleres, yes, thanks - i already set you up as scribe with zakim/rrsagent 15:01:52 LeeF, listening for 10 seconds I heard sound from the following: AxelPolleres (11%), LeeF (31%), AndyS (57%), Chimezie_Ogbuji (5%) 15:01:54 scribe: AxelPolleres 15:02:06 +??P14 15:02:12 Zakim, mute me 15:02:12 Chimezie_Ogbuji should now be muted 15:02:22 zakim, P14 is me 15:02:22 sorry, MattPerry, I do not recognize a party named 'P14' 15:02:27 zakim, ??P14 is MattPerry 15:02:27 +MattPerry; got it 15:02:51 zakim, who's on the phone? 15:02:51 On the phone I see SteveH, cbuilara, bglimm (muted), kasei, Sandro, LeeF, AxelPolleres, AndyS, Chimezie_Ogbuji (muted), MattPerry 15:02:56 +??P15 15:03:01 zakim, ??p15 is me 15:03:01 +bijan; got it 15:03:07 zakim, mute me 15:03:07 bijan should now be muted 15:03:13 EFranconi has joined #sparql 15:03:27 topic: admin 15:03:28 topic: Admin 15:03:33 PROPOSED: Approve minutes at http://www.w3.org/2009/sparql/meeting/2010-12-07 15:03:39 PROPOSED: Approve minutes at http://www.w3.org/2009/sparql/meeting/2010-12-14 15:03:46 Lee: let's approve old minutes... 15:03:53 + +1.540.841.aadd 15:04:24 +1 to minutes 15:04:28 zakim, aadd is pgearon 15:04:28 +pgearon; got it 15:04:38 RESOLVED: Approve minutes at http://www.w3.org/2009/sparql/meeting/2010-12-07 15:04:42 pgearon has joined #sparql 15:04:43 resolved: Approve minutes at http://www.w3.org/2009/sparql/meeting/2010-12-14 15:04:48 RESOLVED: Approve minutes at http://www.w3.org/2009/sparql/meeting/2010-12-14 15:04:58 Next regular meeting: 2011-01-05 @ 15:00 UK / 10:00 EST (scribe: Olivier? AndyS?) 15:05:19 Jan 4th? 15:05:38 Leef: next meeting will be Jan 4th ,no meeting next week, enjoy your holidays 15:05:44 Next regular meeting: 2011-01-04 @ 15:00 UK / 10:00 EST (scribe: Olivier? AndyS?) 15:05:52 topic: Last Call 15:06:22 http://www.w3.org/2009/sparql/wiki/To_Last_Call 15:06:27 Lee: last call will be "standing topic" for the following TCs 15:06:59 -SteveH 15:07:00 .... wiki page has for each doc WG decisions needed and open issues, 15:07:22 ... as well as editorial tasks 15:07:34 +SteveH 15:07:53 ... please all editors, complete that wiki page, would be extremly helpful 15:08:04 +??P2 15:08:13 ... also volunteering for review can be done on that wiki page 15:08:18 -SteveH 15:08:50 ... all editors, if you believe your doc is ready for LC, record that as well 15:09:01 +SteveH 15:09:36 No test doc? 15:09:58 ... all WG members, feel free to add yourselves volunteering for a comprehensive review 15:10:30 Lee: testdoc not yet critical for LC, let's focus on that as we have those ready 15:10:50 zakim, who's on the phone? 15:10:50 On the phone I see cbuilara, bglimm (muted), kasei, Sandro, LeeF, AxelPolleres, AndyS, Chimezie_Ogbuji (muted), MattPerry, bijan (muted), pgearon, ??P2, SteveH 15:10:52 s/those/those nine docs/ 15:10:57 zakim, ??P2 is EFranconi 15:10:57 +EFranconi; got it 15:11:30 I'm a bit worried about having too few tests (not the test doc) - tests test the spec and check we have done the details. Already finding small issues with functions. 15:11:53 Lee: two main topics today... enrico's proposal for new OWL entailment regime, and open issues on SPARQL uniform HTTP Protocol, we'll try to limit each one to 25min. 15:12:00 +1 to AndyS 15:12:37 ... would like to focus on conrete querstions rather than rehashing discussions carried out on the list already. 15:12:45 Topic: OWL Direct entailment regime with non-distinguished variables 15:12:59 -SteveH 15:13:14 enrico: propose to add entailment regime that differs from current OWL DS proposal. 15:13:27 +??P22 15:13:29 (AndyS, I share the concern. Not sure how to clone our WG resources. :/) 15:13:33 Zakim, ??P22 is me 15:13:33 +SteveH; got it 15:14:32 .... would change that bnodes would not be in the answer set (birte said that this is not maintaining lower entailment regimes results), and allow non-distinguished variables. 15:15:03 ... negative remark I got was that two deviating ent regimes might be confusing (bijan). 15:15:51 ... why I still want to have it: is that this would fit the needs of people doing 20 years of DB+ontologies research, and allow a richer way to query ontologies. 15:16:16 ... without this extension SPARQL becomes useless for OWL-QL. 15:16:50 ... for applications that don't necesarily all exist now, but I see huge potential for DB+ontologies. 15:16:59 zakim, unmute me 15:16:59 bijan should no longer be muted 15:17:09 I cant really say much, my cold made me loose my voice 15:17:12 Lee: bijan/birte wanna express your concerns? 15:17:30 bijan: not just confusing to have more than once, but other concerns. 15:18:34 ... we have already confusion with OWL profiles explaining our users. We try to make that work for our users to query SW data, DB scenario is also important 15:18:48 zakim, mute me 15:18:48 bijan should now be muted 15:18:51 ... but we don't want to deviate on RDF data from other ent regimes. 15:19:03 q+ 15:19:08 ack AxelPolleres 15:19:33 AxelPolleres: We should discuss the two points separately - bnodes in answers, and non-distinguished variables 15:19:38 Let me add that non-distinguished variables complicate the implementation even in the polynomial fragments. 15:20:08 q+ 15:20:18 q+ to ask about who will do the writing and produce test cases and when 15:20:20 ack EFranconi 15:20:56 Axel: there might be cases for bnodes allowed, but also non-distinguished variables. 15:21:29 Enrico: disagrees... if nondist-variables, we shouldn't have bnodes in answers, both issues go together. 15:21:29 ack sandro 15:21:29 sandro, you wanted to ask about who will do the writing and produce test cases and when 15:21:55 sandro: does enrico volunteer to do the editing work? 15:22:22 enrico: can be done, don't know about the details, that's a minor point. 15:22:38 q? 15:22:40 lee: given our existing schedule and resources, that's a challenge 15:22:46 Well, there have to be implementations and test cases, which is more work then actually just adding another regime to the spec 15:22:58 doesn't the point about returning "existential variables" apply equally to vanilla SPARQL? 15:23:18 ... another point is whether we would've implementations, enrico put a few implementers in touch with us on the list. 15:24:01 ... one potential option would be to add it under the "at risk" label. 15:24:21 Two independent implementations 15:24:28 enrico: we'd need an implementation which complies to the standard, right? 15:24:36 lee: we need two 15:24:58 enrico: quonto, a system from pisa, clark&parsia, ... 15:25:30 ... that to nd-variables, none of them planned to be compliant with sparql (mostly because there was no such entailment regime) 15:26:12 ... wrappers around existing systems should be possible/opportunity 15:26:54 ... but probably not gonna happen within the next 4 months. 15:27:14 q+ 15:27:20 ack EFranconi 15:27:34 lee: ??? (didn't catch that) 15:28:03 enrico: market hasn't pushed so far, since they weren't aware 15:28:35 lee: then not clerar to me whether they have a reason to move to sparql or whether happy with current conjunctive queries they have 15:28:38 q? 15:28:50 q+ 15:28:53 q+ 15:28:54 zakim, unmute me 15:28:54 bijan should no longer be muted 15:28:56 ack bijan 15:28:56 enrico: just a matter of (standard?) syntax 15:29:43 bijan: one thing that came out is that a lot of use case for that is analysis rather than end user queries 15:30:38 zakim, mute me 15:30:38 bijan should now be muted 15:30:38 q? 15:30:40 ack SteveH 15:31:43 steve: there are already situations where implementations can't handle all of the syntax of SPARQL (quad stores vs. triple stores, e.g.) 15:32:09 Q+ 15:32:20 sandro: wonder if the market will end up misusing the existing SPARQL/OWL ent regime, if we don't cater for them 15:32:22 ack EFranconi 15:33:05 enrico: I think this will happen, some implementers already say "we want SPARQL syntax/protocol" 15:33:45 -kasei 15:34:05 +kasei 15:34:08 misusing? experimenting with future possibilities? 15:34:21 returning an error under certain circumstances would be complaint 15:34:22 sandro: you say that this group would make a parallel standard, but not "claim" they are compliant to the spec. 15:34:23 I.e.,entailment regimes are an extension point 15:34:30 q? 15:34:49 lee: I see three options. 15:36:10 .... 1) we don't have enough consensus to cater for this in this round, we hope that this group of implementers will go ahead and specify their ent regime and can be added in next standardisation role (clearly the least satisfying to enrico, and could slow adoption in some market, but leat impact to our schedule) 15:36:17 2) include the regime 15:36:30 3) include the regime "at risk" 15:36:50 both 2)+3) would require text and test cases 15:37:15 .... would like to go for strawpoll. 15:37:27 +1 to sandro; at risk is the default to help the schedule 15:37:29 sandro: I would want to make it at risk anyways, if we do it 15:37:37 lee: ok let's drop 2) 15:37:44 Those seem like the options :) 15:37:54 ... any more comments? 15:38:37 Would current ent regime for OWL2-DS name need to change? 15:38:50 enrico: in sparql1.0 it was anyways legal to add new ent. regimes 15:38:56 AndyS: No 15:38:57 lee: this is still the case 15:39:05 We don't say that the specified regimes are the only ones forever after 15:39:10 +1 to Lee; Entailment regime are an extension point 15:39:40 sandro: we're definitly open to more ent. regimes in the future 15:39:55 (enrico can you type in what you just said) 15:40:01 Leaving a postponed issue is the way to do that 15:40:32 I'D LIKE TO HAVE A STATEMENT SOMEWHERE THAT THE ENT-REG I'M PROPOSING IS DESIRABLE IF WORKED OUT BETTER WITH MORE RESOURCES 15:40:32 lee: strawpoll... 15:40:40 Yes, if we choose 1, we probably should mark it as a postponed issue 15:40:45 straw poll: (1) leave regimes as-is / (2) include regime with non-distinguished variables 15:41:07 1, with a postponed issue 15:41:09 1 15:41:10 0 15:41:11 0 15:41:13 1 15:41:14 0 15:41:15 2, but not a strong preference 15:41:17 0 15:41:17 1, with postponed issue 15:41:18 2 15:41:19 0 15:41:25 0 15:41:33 2 only if we have someone committing to edit/spec it, 1 otherwise 15:42:13 (count me as a 0) 15:42:53 lee: I'll set up an issue for this... 15:43:19 PROPOSED: Close ISSUE-64 with no change for now, and include ISSUE-64 on a list of postponed issues for a future WG to consider 15:44:06 -bglimm 15:45:07 Zakim, unmute me 15:45:07 Chimezie_Ogbuji should no longer be muted 15:45:08 Seconded 15:45:53 seconded, so 15:45:54 +??P1 15:45:57 Zakim, mute me 15:45:57 Chimezie_Ogbuji should now be muted 15:46:07 Zakim, ??P1 is me 15:46:07 +bglimm; got it 15:46:11 RESOLVED: Close ISSUE-64 with no change for now, and include ISSUE-64 on a list of postponed issues for a future WG to consider 15:46:19 Sorry, my line dropped 15:46:50 ISSUE-64: Closed with no action as of now, but postponed for consideration by a future WG 15:47:32 ACTION: Lee to close ISSUE-64 and place ISSUE-64 on a list of postponed issues 15:48:07 Zakim, unmute me 15:48:07 Chimezie_Ogbuji should no longer be muted 15:48:28 lee: trackbot gone, need to add issues/actions manually after call 15:48:37 http://www.w3.org/2009/sparql/wiki/HTTP-UPDATE-ISSUES#ISSUE-56:_Does_HTTP_PATCH_affect_either_the_SPARQL_Protocol_or_the_SPARQL_Uniform_etc._HTTP_etc._Protocol.3F 15:48:44 topic: http udate protocol issues 15:49:00 lee: first one ISSUE-56 15:49:22 -bglimm 15:49:42 .... question whether somthing about PATCH needs to be said in http-rdf-update 15:50:32 chime: we had 2 comments about this, as a result about that thread, my suggestion was to keep PATCH not normative but add some more words about it 15:50:57 http://lists.w3.org/Archives/Public/public-rdf-dawg/2010OctDec/0465.html 15:51:17 ... most recent comment from andy, see url just pasted. 15:51:27 http://www.w3.org/2009/sparql/docs/http-rdf-update/#http-patch 15:51:36 lee: current version reflects your proposal? 15:51:40 chime: yes 15:52:00 -bijan 15:52:46 ... I am happy with that informative note. 15:52:53 ... anyone objects? 15:53:36 PROPOSED: Close ISSUE-56 with the inclusion of non-normative only text addressing how PATCH should be used with the Uniform HTTP Protocol 15:53:52 PROPOSED: Close ISSUE-56 with the inclusion of the existing non-normative only text addressing how PATCH should be used with the Uniform HTTP Protocol 15:54:17 RESOLVED: Close ISSUE-56 with the inclusion of the existing non-normative only text addressing how PATCH should be used with the Uniform HTTP Protocol 15:54:23 ACTION: Lee to close ISSUE-56 15:54:58 http://www.w3.org/2009/sparql/wiki/HTTP-UPDATE-ISSUES#.28No_formal_issue.29:_Confusion_regarding_recommended_behavior_of_OPTION_method 15:55:07 Lee: next issue on the agenda is the one around the OPTION method 15:56:31 chime: ... if you send an OPTION or GET to a service you get the SD document. 15:56:57 lee: that matches greg's understanding? 15:57:10 greg: need to look that up, but sounds fine to me 15:57:29 lee: looks like what we had decided. 15:58:01 can we discuss the xml:base issue? 15:58:08 ... any alternatives to suggest? If not, chime please take this as consensus to the group. 15:58:20 http://www.w3.org/2009/sparql/wiki/HTTP-UPDATE-ISSUES#.28Comment.29:_HTTP_DELETE_operation 15:58:24 -EFranconi 15:59:02 -MattPerry 16:00:54 chime: summarising issue about BASE URI 16:01:26 that captured my viewpoint 16:01:39 Lee: is there any authority we can ask about that interpretation of XML base? 16:01:46 snadro: can try to find out 16:01:56 s/snadro/sandro/ 16:02:28 lee: steve/andy, if we can confirm that this is a valid interpretation of BASE, would your concerns still stand? 16:02:55 andy: still some concerns, leaves too much open(?) 16:03:53 steve: ... (similar concerns?) ... in 4store we banned relative URIs 16:03:56 +q 16:04:22 ack pgearon 16:04:40 just one thing for the records: http://lists.w3.org/Archives/Public/public-rdf-dawg-comments/2010Dec/0005.html new comment also affects http-update-protocol 16:05:04 note this only applies to ?graph=[URI] 16:05:10 in the HTTP update protocol 16:05:43 paul: I am working with RIF and relative URIs at the moment, similar issues. I would agree with banning them here 16:06:11 chime: handled properly doesn't leave much ambiguity 16:06:18 sandro: (disagrees) 16:06:25 s/sandro/steve/ 16:06:35 Example: whether it's a N-triple doc or an RDF/XML doc for the graph makes a difference but the same RDF data. 16:08:57 I believe XML base says that it's only in-content: http://www.w3.org/TR/xmlbase/#granularity 16:09:44 chimezie, what would you do with ? 16:10:06 lee: sandro would you be willing to pursue on that... 16:10:23 (sandro and chime to figure out details after call) 16:10:36 bye all 16:10:38 -LeeF 16:10:39 -SteveH 16:10:42 -pgearon 16:10:56 ACTION: sandro to pursue answer to whether the base of a URI can come from inside the request's content (e.g. xml:base) 16:11:08 zakim, attendees? 16:11:08 I don't understand your question, AxelPolleres. 16:11:10 -kasei 16:11:12 rrsagent, make records public 16:11:23 -AxelPolleres 16:12:00 (5.1.1) Base URI embedded in content 16:12:49 -cbuilara 16:12:56 cbuilara has left #sparql 16:13:29 Not quite - the HTTP request line, headers aren't "content". 16:13:48 PUT http://example.org/?graph=foo 16:14:03 and a body which RDF/XML: ... 16:14:19 16:14:26 What is "foo"? 16:15:24 the example in 5.1.1 even emphasises the use 16:15:46 which is to have the internel references to relative to the source of the document, not the contents 16:17:19 --> chimezie, what would you do with ? 16:18:25 (related: xml:base and @base) 16:21:15 PUT http://example.org/?graph=%23foo 16:27:18 -Chimezie_Ogbuji 16:27:19 -Sandro 16:27:21 -AndyS 16:27:22 SW_(SPARQL)10:00AM has ended 16:27:23 Attendees were +44.208.439.aaaa, cbuilara, bglimm, +1.310.729.aabb, kasei, Sandro, SteveH, +1.617.553.aacc, LeeF, AxelPolleres, AndyS, Chimezie_Ogbuji, MattPerry, bijan, 16:27:25 ... +1.540.841.aadd, pgearon, EFranconi 16:51:16 trackbot has joined #sparql 17:13:04 AxelPolleres has left #sparql 18:36:36 Zakim has left #sparql