14:53:04 RRSAgent has joined #rif 14:53:04 logging to http://www.w3.org/2010/07/27-rif-irc 14:53:17 rrsagent, make minutes 14:53:17 I have made the request to generate http://www.w3.org/2010/07/27-rif-minutes.html csma 14:53:25 rrsagent, make log public 14:53:46 Meeting: RIF telecon 27 July 2010 14:54:00 Chair: Christian de Sainte Marie 14:54:25 Agenda: http://lists.w3.org/Archives/Public/public-rif-wg/2010Jul/0032.html 14:54:45 csma has changed the topic to: RIF telecon 27 July; agenda: http://lists.w3.org/Archives/Public/public-rif-wg/2010Jul/0032.html (csma) 14:55:25 Regrets: DaveReynolds 14:55:34 zakim, clear agenda 14:55:34 agenda cleared 14:55:53 agendum+ Admin 14:56:16 agendum+ liaisons 14:56:24 agendum+ Actions review 14:56:52 agendum+ Feedback on SPARQL ER 14:57:06 agendum+ XML data 14:57:13 agendum+ Primer 14:57:23 agendum+ RIF in RDF 14:57:36 agendum+ Test cases 14:57:53 agendum+ AOB (next meeting: 10 August) 15:00:03 SW_RIF()11:00AM has now started 15:00:10 +Sandro 15:00:16 Harold has joined #rif 15:01:07 lmorgens has joined #rif 15:01:37 +Leora_Morgenstern 15:01:53 + +33.1.49.08.aaaa 15:02:16 zakim, aaaa is me 15:02:16 +csma; got it 15:02:17 ChrisW_ has joined #rif 15:02:34 +[IBM] 15:02:43 yo zakim, ibm is temporarily me 15:02:58 zakim, ibm is temporarily me 15:02:58 +ChrisW_; got it 15:03:04 +[IPcaller] 15:03:49 + +1.503.533.aabb 15:04:16 AdrianP has joined #rif 15:04:29 Zakim, who is on the phone? 15:04:29 On the phone I see Sandro, Leora_Morgenstern, csma, ChrisW_, [IPcaller], +1.503.533.aabb 15:04:40 Zakim, [IPcaller] is me 15:04:40 +AdrianP; got it 15:04:40 zakim, ChrisW_ is me 15:04:41 +ChrisW; got it 15:04:47 Zakim, mute me 15:04:47 AdrianP should now be muted 15:05:07 zakim, aabb is Gary 15:05:07 +Gary; got it 15:05:30 +[NRCC] 15:05:39 Gary_Hallmark has joined #rif 15:05:50 zakim, [NRCC] is me. 15:05:50 +Harold; got it 15:05:50 Zakim, unmute me 15:05:52 AdrianP should no longer be muted 15:06:05 Scribenick: Gary 15:06:08 Scribe: Gary 15:06:21 zakim, next item 15:06:21 agendum 1. "Admin" taken up [from csma] 15:06:29 rrsagent, make logs public 15:06:40 http://lists.w3.org/Archives/Public/public-rif-wg/2010Jul/att-0006/2010-07-13-rif-minutes.html 15:06:59 PROPOSED: approve the minutes of July 13 telecon 15:07:25 RESOLVED: approve the minutes of July 13 telecon 15:08:07 MichaelKifer has joined #rif 15:08:50 + +1.631.833.aacc 15:08:55 zakim, next item 15:08:55 agendum 2. "liaisons" taken up [from csma] 15:09:13 zakim, aacc is me 15:09:13 +MichaelKifer; got it 15:09:33 zakim, next item 15:09:33 agendum 2 was just opened, csma 15:09:44 zakim, close item 2 15:09:44 agendum 2, liaisons, closed 15:09:46 I see 7 items remaining on the agenda; the next one is 15:09:48 3. Actions review [from csma] 15:09:57 zakim, next item 15:09:57 agendum 3. "Actions review" taken up [from csma] 15:10:13 zakim, ping 15:10:13 I don't understand 'ping', sandro 15:10:57 zakim, who is on the phone? 15:10:57 On the phone I see Sandro, Leora_Morgenstern, csma, ChrisW, AdrianP, Gary, Harold, MichaelKifer 15:11:50 csma: removing string match from xml-data 15:13:49 close action-1034 15:13:50 ACTION-1034 Contact Stella about test cases status closed 15:14:57 zakim, next item 15:14:57 agendum 4. "Feedback on SPARQL ER" taken up [from csma] 15:16:59 sandro: a conversation with sparql makes more sense than a big review, because there are several issues 15:18:07 ... ask Jos to send comments to sparql comments list 15:19:18 csma: one issue is we think sparql should not restrict RIF 15:19:22 zakim, next item 15:19:22 agendum 5. "XML data" taken up [from csma] 15:20:12 csma: incorporating Jos' and Michael's comments 15:20:39 ... currently doc is in flux 15:21:47 ... reduce size of xpath related material 15:21:49 Harold, do you really want "skype highlighting" on your name in the Primer editors list? 15:22:46 cmsa: use NCName to refer to many attributes and some elements that have no namespace 15:23:03 ... no namespace => can't use rif:iri 15:24:18 sandro: suggest using a dummy namespace 15:25:16 ... or a local symbol 15:25:51 I cant decide if using local is incredibly evil, or pretty clever. 15:28:15 sandro: dummy namespace might be more straightforward 15:28:37 ... but could offend some xml sensibilities 15:30:50 csma: will go with dummy namespace for now 15:31:03 zakim, next item 15:31:03 agendum 6. "Primer" taken up [from csma] 15:31:33 harold: making progress and have received some feedback 15:31:59 http://www.w3.org/2005/rules/wiki/Primer 15:33:01 csma: why if (a,b) rather than if a then b? 15:33:39 http://www.w3.org/2005/rules/wiki/Primer#Conjunctions_and_Implications 15:34:31 leora: came from common logic, but is fine with if a then b 15:35:31 harold: don't want to confuse with PRD 15:36:01 but shouldn't we use a syntax which is understandable to the RIF community in the Primer, since the Primer is meant to give easy access to RIF? 15:36:02 csma: it does not conflict (means the same thing) 15:38:35 q? 15:39:34 chris: I uploaded several editorial changes to the primer on the wiki 15:41:48 harold: we will change to If a Then b 15:43:01 csma: target a review in 2 weeks 15:43:08 zakim, who is here? 15:43:08 On the phone I see Sandro, Leora_Morgenstern, csma, ChrisW, AdrianP, Gary, Harold, MichaelKifer 15:43:10 On IRC I see MichaelKifer, Gary, AdrianP, ChrisW, lmorgens, Harold, RRSAgent, Zakim, csma, AxelPolleres, sandro, trackbot 15:45:23 zakim, pick a victim 15:45:23 Not knowing who is chairing or who scribed recently, I propose Sandro 15:45:36 zakim, pick a victim 15:45:36 Not knowing who is chairing or who scribed recently, I propose csma 15:45:43 zakim, pick a victim 15:45:43 Not knowing who is chairing or who scribed recently, I propose Gary 15:45:47 dave has joined #rif 15:46:47 DaveReynolds has joined #rif 15:47:02 Dave, don't leave! We have been waiting for you! 15:47:31 action: Sandro t oreview RIF Primer by August 27 15:47:31 Created ACTION-1035 - T oreview RIF Primer by August 27 [on Sandro Hawke - due 2010-08-03]. 15:47:31 +??P13 15:47:53 action: Gary to review RIF Primer by August 27 15:47:53 Created ACTION-1036 - Review RIF Primer by August 27 [on Gary Hallmark - due 2010-08-03]. 15:48:13 zakim, next item 15:48:13 agendum 7. "RIF in RDF" taken up [from csma] 15:49:49 sandro: differs from Dave R 15:50:08 ... key issue: is RDF a KR? 15:51:35 dave: RIF is different from RDF. An encoding is closed world 15:58:13 sandro: instead of optional elements, use empty lists 15:58:56 dave: isn't this a corner case? 15:59:12 dave: I expect extensions to add namespaces, not so much to fiddle with the core elements. 16:00:47 csma: can a dialect mark a mandatory piece of core as optional? 16:00:53 sandro: I've gotten used to this idea that rif syntactic elements don't get changed by extensions, even if how they are used (eg their cardinality). 16:02:31 sandro: my mapping of xml to rdf requires that optional or repeated elements be lists 16:03:47 chris: I favor following existing xml syntax (and not lists) 16:06:26 csma: if you want to process a RIF XML document, you must understand RIF 16:07:24 sandro: wants RDF graph (encoding a RIF document) to be "stable" under various RDF transformations 16:08:31 ... including open-world processing 16:09:22 sandro: It's important to me that people use RDF in an open-world KR sort of way. I don't want RIF-in-RDF to go the other way.... 16:10:32 sandro: sparql 1.1 lets you query lists but order is not preserved 16:11:02 dave: It's important to me be able to use SPARQL to search for bits of rules -- 1.1 will provide that, so I can live with this. 16:12:09 In SPARQL 1.1 you CAN query for list members, but you can't get the elements back in order. 16:12:25 (sort of DESCRIBE on the list/rule) 16:12:44 dave: You won't write a parser in SPARQL, but it's good to be able to query for rule structures. 16:13:01 dave: I'd like the requirement phrased differently, though. 16:13:27 michael: neutral 16:14:37 ... probably easier to do some transformations if lists are used 16:14:38 michael: The rule encoded in RDF is no longer a rule, so I no longer find the KR argument compelling. But transformations are probably easier with lists. 16:15:08 harold: OWL can express some rules, eg subsumption. 16:16:00 chris: using lists doesn't correspond to our xml syntax in an obvious, neat way 16:16:05 chris:What sways me against lists is the RDF and XML syntaxes not aligning as well. 16:17:07 sandro: no parallel to OWL2 xml to rdf mapping 16:20:18 The names used in the RDF syntax should be chosen as close to those of the XML syntax as possible. 16:20:56 the four optional/repeated properties are: directive, sentence, declare, formula 16:20:59 csma: prefer the mapping preserve the rif xml names, but not use lists 16:22:46 sandro: give enough time, would implement with and without lists and see what works out 16:23:05 ... but to choose now, would choose lists 16:23:24 s/give/given 16:24:27 PROPOSED: Do RIF-in-RDF with repeated properties (instead of the list encoding) 16:24:31 -1 16:24:52 +1 16:24:57 +1 16:24:59 +1 16:25:03 +1 16:25:08 0 16:25:10 +1 16:25:20 PROPOSED: Do RIF-in-RDF with the list encoding, instead of repeated properties. 16:25:23 +1 16:25:26 0 16:25:32 0 16:25:35 0 (prefer cleaner correspondance to XML syntax) 16:25:38 0 16:25:41 0 16:25:50 0 16:26:07 RESOLVED: Do RIF-in-RDF with the list encoding, instead of repeated properties. 16:26:26 RESOLVED: Do RIF-in-RDF with the list encoding, instead of repeated properties. 16:27:20 -Harold 16:27:23 -MichaelKifer 16:27:24 bye 16:27:28 bye 16:27:32 MichaelKifer has left #rif 16:27:35 -DaveReynolds 16:27:36 -Leora_Morgenstern 16:27:37 zakim, list attendees 16:27:38 -AdrianP 16:27:39 As of this point the attendees have been Sandro, Leora_Morgenstern, +33.1.49.08.aaaa, csma, +1.503.533.aabb, AdrianP, ChrisW, Gary, Harold, +1.631.833.aacc, MichaelKifer, 16:27:42 ... DaveReynolds 16:27:50 rrsagent, make minutes 16:27:50 I have made the request to generate http://www.w3.org/2010/07/27-rif-minutes.html csma 16:30:40 -Gary 16:32:21 -Sandro 16:32:22 -ChrisW 16:32:23 SW_RIF()11:00AM has ended 16:32:25 Attendees were Sandro, Leora_Morgenstern, +33.1.49.08.aaaa, csma, +1.503.533.aabb, AdrianP, ChrisW, Gary, Harold, +1.631.833.aacc, MichaelKifer, DaveReynolds 17:47:04 AxelPolleres has joined #rif 17:47:52 AxelPolleres has joined #rif