15:53:09 RRSAgent has joined #webont 15:53:14 Zakim has joined #webont 15:53:15 Zakim, this will be WEBO 15:53:16 ok, DanCon 15:54:34 frankh has joined #webont 15:55:52 frap; still didn't update the ftf record 15:56:06 agenda + 15Aug http://lists.w3.org/Archives/Public/www-webont-wg/2002Aug/0095.html 15:56:16 DanCon has changed the topic to: WebOnt 15 Aug 15:56:31 DanCon has changed the topic to: WebOnt 15 Aug. scribe: ??? 15:57:41 timfinin has joined #webont 15:58:42 SW_WebOnt()12:00PM has now started 15:58:48 +??P10 15:59:09 +Evan_Wallace 15:59:38 +??P12 16:00:24 +??P15 16:00:28 +??P13 16:00:31 -??P12 16:00:41 +??P14 16:01:22 +DanC 16:01:26 +??P16 16:01:40 Zakim, who's on the phone? 16:01:41 On the phone I see ??P10, Evan_Wallace, ??P15, ??P13, ??P14, DanC, ??P16 16:01:55 +M_Smith 16:01:58 Zakim, ??P10 is TimF 16:01:59 +TimF; got it 16:02:09 +Ian_Horrocks 16:02:15 DeborahMc has joined #webont 16:02:17 Zakim, who's on the phone? 16:02:18 On the phone I see TimF, Evan_Wallace, ??P15, ??P13, ??P14, DanC, ??P16, M_Smith, Ian_Horrocks 16:02:23 +Lassila 16:02:23 +??P19 16:02:25 +Jim_Hendler 16:02:33 Zakim, ??P19 is JonStanton 16:02:35 +JonStanton; got it 16:02:41 jhendler has joined #webont 16:02:45 +??P21 16:02:48 Zakim, ??P16 is DebM 16:02:49 +DebM; got it 16:02:54 Zakim, ??P21 is PeterPS 16:02:56 +PeterPS; got it 16:03:01 Zakim, who's on the phone? 16:03:02 On the phone I see TimF, Evan_Wallace, ??P15, ??P13, ??P14, DanC, DebM, M_Smith, Ian_Horrocks, Lassila, JonStanton, Jim_Hendler, PeterPS 16:03:07 IanH has joined #webont 16:03:13 +??P22 16:03:24 Zakim, ??P22 is NickG 16:03:26 +NickG; got it 16:03:26 larrye, guus 16:03:32 larrye, guus, frankvh 16:03:40 Zakim, ??P15 is GuusSchrieber 16:03:41 +GuusSchrieber; got it 16:03:50 Zakim, ??P13 is LarryE 16:03:52 +LarryE; got it 16:03:57 Zakim, ??P14 is FrankvH 16:03:58 +FrankvH; got it 16:04:01 Zakim, who's on the phone? 16:04:02 On the phone I see TimF, Evan_Wallace, GuusSchrieber, LarryE, FrankvH, DanC, DebM, M_Smith, Ian_Horrocks, Lassila, JonStanton, Jim_Hendler, PeterPS, NickG 16:05:31 Roll call - 8 regrets - agenda plus Borden, Obrst, De Roo 16:06:03 pfps has joined #webont 16:06:06 +Mike_Dean 16:06:07 motion to adopt record of last meeting as true - RESOLVED 16:06:41 next telecon - Aug 22, at normal time 16:06:54 zakim, choose a scribe 16:06:55 Not knowing who is chairing or who scribed recently, I propose DebM 16:07:20 DebM to scribe next week. (Ian regrets) 16:07:43 -- face to face schedule 16:08:12 Bristol f2f - we got some hotel info, chairs will distribute 16:08:29 ACTION: Guus to forward hotel info for f2f4 to WebOnt. 16:10:37 ACTION: JimH will forward the hotel information 16:12:55 +Pat_Hayes 16:13:27 ACTION: group being split between NY and Manchester in preference, chairs will determine and inform group. 16:14:11 ACTION: jimH to announce WDs - DONE 16:14:31 ACTION: Editors subscribed to public comments - DONE 16:15:01 ACTION: Pat to develop new MT attempt - continued to Aug 19 16:15:14 ACTION: Eshelman to do example for document - CONT 16:15:30 ACTION: Evan W. to do OMG writeup - DONE 16:15:41 ACTION: Raphael - to make large ontology available - CONT 16:15:52 ACTION - JimH test case 4.2 - CONT 16:16:06 ACTION - DanC/Pat re: f2f log - CONT 16:16:54 ACTION: Jim to solicit reviews for WDs - DONE 16:17:38 ACTION: Pfps note on issue 4.6 - DONE 16:17:50 ACTION: Jeremy Carroll to review .rdf suffixes - CONT 16:18:24 ACTION: Mike Dean to keep up to date a list of diffs from DAML (in editor's WD) - DONE 16:18:27 --------------- 16:18:30 Semantics 16:18:35 Zakim, remind me in 25 minutes 16:18:36 ok, jhendler 16:18:59 http://www.daml.org/2002/06/webont/owl-ref-proposed this is the link to editors copy 16:19:09 from the webont page for the ref document 16:19:56 - 16:20:19 Peter: Ian and I tried to write a small document summarizing the key entailment differences of the proposals 16:20:27 mdean has joined #webont 16:20:40 Peter: one proposal doesn't care which way you do these (order wise) 16:20:44 DanCon has joined #webont 16:20:45 Other proposal - it does matter 16:21:03 DanC that's not quite right - issue is whether you mention in a premise, not issue of commutivity. 16:21:19 i.e. question is whether intersection necessarily exists or not 16:22:15 MikeS - but ifwer'e doing complex reasoning (transitivity, etc.) won't we risk missing things because of the lack of explicit mention? 16:22:36 Guus - do the problems arise just in OWL or in OWL Lite as well? 16:22:43 Ian - maybe explicitely? 16:22:49 Dan - maybe not 16:23:19 Guus - can you give an example in normal Owl Lite? 16:23:32 Peter - example 1? Dan - no, intersection not in Owl Lite 16:24:46 16:27:18 it appears that it may be possible to come up in OWL Lite - but may not come up often 16:27:28 or may be hard to construct 16:28:02 Peter - invites discussion of first point - i.e. entailment differences 16:28:14 owl lite requires owl:intersectionOf, see section 3.1 of the feature synopsis 16:29:02 Proposal 1 is Peter's, Proposal 2 is Dan's 16:29:23 (note: discussion is a message from pfps sent Aug 14 to WebOnt) 16:30:53 Ian discusses differences between Dan/Peter examples 16:31:04 Guus - but didn't Jos DeRoo show this could work? 16:31:22 Peter - know, hard to figure out how Jos' stuff handles this 16:31:28 s/know/no 16:31:58 16:32:23 peters point on section 3.1 implies that either intersection should be removed from 3.1 or it should be added in the listing in section 2 16:37:03 DanC - my proposal doesn't really cover the query case, but if Ont1 says "EngFurn = X or Y" and another says "EngFun = Y or X" then we can recognize they contain the same thing, but not that the logical statement that "A:engFurn sameClassAs B:engFurn" 16:37:24 16:38:19 Pat - let's not argue cases - Dan, can you help better differentiate what you do and don't want. 16:38:54 Dan - what you don't get is conclusions that mention classes that are not in the premises 16:39:11 Pat - but you can still get non existential conlcusions? Dan - yes. 16:39:43 DanC - may be similar to difference between DataLog and Horn Logics (Peter - unclear if analogy is right) 16:40:06 Dan - Datalog is like Horn Logic but all function symbols are zero-ary 16:40:18 Dan - so all my axioms are essentially datalog axioms 16:41:02 pat - i.e. they don't allow "ForAll ... Exists" conclusions 16:41:16 Pat - this is a reasonably understood subclass of logic 16:41:57 JimH - other implications? Do these have different layering? 16:42:18 Dan - I think mine does layer right on RDF(S) MT - not clear about other. 16:42:43 Dan - in mine you can make statements/give properties to classes. Peter's may not allow that 16:43:35 jhendler, you asked to be reminded at this time 16:44:20 Peter - my proposal does not have entailments that allow properties of classnames to effect there extensions (DanC/Pat - i.e. cannot say "if I like a class then blueberries are in it") 16:44:59 Peter - cannot say "for all classes, if the class has blueberry in it - then I like it" 16:45:17 16:46:18 Guus - it would be great if we could get some nice specific examples of what one loses or gains with this example (JimH adds and also relationship to RDF and RDFS if they are different) 16:46:58 (Guus notes today's discussion seemed profitable because we are getting specific, rather than "arguing theology") 16:47:37 pfps - we won't end up with a representation langauge by focusing on examples/test cases 16:47:51 (JimH notes that the charter is not to come up with a KR language...) 16:48:34 DanC - examples like using FunctionalProperty (or functionalProperty) - can it be range of property? are also needed. 16:49:07 Guus - so can we get some examples generated that are specific? 16:50:06 Ian - haven't we discussed this enough? DO we have a logically nice language, or do we want to have an RDFally nice logic? 16:51:12 Ian - perhaps we should take straw polls on the discussions and proposals. 16:52:01 Guus - can you give me a straw poll question 16:52:15 Ian - which of the two poposals (p1 = Peter, p2 = dan) 16:52:19 do you favor? 16:52:36 Guus - why not try - let's take straw poll. 16:52:38 Zakim, who's on the phone? 16:52:39 On the phone I see TimF, Evan_Wallace, GuusSchrieber, LarryE, FrankvH, DanC, DebM, M_Smith, Ian_Horrocks, Lassila, JonStanton, Jim_Hendler, PeterPS, NickG, Mike_Dean, Pat_Hayes 16:53:54 2 a a 1 a 2 a 1 1 a a 2 1 a a a 16:54:30 straw poll - P1 (4), P2 (3), Abst (9) 16:54:59 feeling we need to come back next week after Pat's Action is done. 16:55:01 ---------- 16:55:13 Move to item 4 -- GUIDE progress 16:56:03 Mike S - Raphael and I are writing like mad - we've adopted the approach of "ontology as a set of example" - expect a draft form in a couple of weeks. 16:56:31 DanC - does the ontology example look like the use cases? 16:56:39 Deb/Mike - we're using wine 16:57:23 Dan - if we could relate walkthroughs to reqs it will help continuity (example: wine portal showing how the ontology info is used; wine choosing agent)? 16:58:16 i've got to leave at 1:00 to attend a meeting. 16:58:22 timfinin has left #webont 16:58:26 -TimF 16:59:28 DanC - why is partof dangerous? 16:59:58 DanC/Ian - what do you mean? Why can't I just say partOf is a relation, it is transitive, etc... 17:00:39 Pat/Deb - there are some issues that go beyond simple partOfs that people use. 17:00:52 Guus - let me put together an example 17:01:46 ACTION: Guus to put together an example from his wine stuff - small part of ontology that contains this kind of region/PartOf example - for walkthru document 17:03:29 MikeS - we won't do "tricky stuff" in primer, but commonly used idioms (like PartOf) might be well worth using 17:04:01 Pat - example, things like subClassOf easy; things like subPropertyOf harder. 17:04:25 Guus - how to do it stuff - we have some complex things that need to be there. 17:04:45 Jim - perhaps we should make how-to and objectives link up. 17:05:44 Dan - is someone compiling the How-to-do-it? 17:05:55 DanCon has joined #webont 17:06:14 Guus - not yet. Maybe some people try things out for a bit, before we look for editor 17:06:41 Discussion of http://lists.w3.org/Archives/Public/www-webont-wg/2002Jul/0229.html 17:06:48 Guus' how to message 17:06:58 DanC - who has things that might fit in that? 17:07:16 Deb - we've done some - maybe we could contribute part-of 17:10:06 JimH - talks a bit about what the document can do - example: JimH re: defaults; DebM - way to fake closed worlds with cardinality 17:10:19 ACTION: Deb to take a shot at writing up the closed world example 17:10:37 other people to send their "favorite recipes" 17:10:47 Guus - let's go to the OMG activities/issues. 17:11:24 Guus - people should note the provisional schedule - by beginning of calendar 03 we should have our inputs to this process. 17:11:49 Guus - maybe I should update UML doc to reflect new Owl Lite 17:12:05 ACTION: Guus to update UML document to reflect new Owl Lite 17:12:25 Evan - OMG is interested in this - UML and modeling are important to OMG world. 17:12:51 users at OMG are trying to do models and interface specs - including defns of lexicons, tazonomies, etc. 17:13:32 some discussion of how these worlds relate and some interest in qualifying this. 17:13:59 DanC - would be worth knowing companies, deployment expectations, etc. Evan - the "who" for now, at least, is in the message 17:14:37 Evan - at OMG the implementors and proposers tend to be the same folks - so the folks in that list are the likely suspects 17:14:53 hmm... the CG should know about this potential dependency. 17:16:07 ACTION: JimH to inform SW-Cg of (very provisional, likely to slip) dependency WebOnt is taking on re: OMG interaction 17:16:12 --------- 17:16:30 Item 5 - short summary of comments to date on Public list 17:17:24 Frank - generally positive comments - some people raise issues - Boeing folks seem to like OWL Lite for their data integration. Requestes for more justifications of what is in which, what is in or out, etc. 17:17:43 Need for a RDF/RDFS/DAML+OIL/OWL Lite/OWL comparison 17:18:30 hmm... I wonder if that would fit neatly into the feature synopsis 17:18:54 jim - we are seeing a growing request on our part to have a how RDF/RDFS/OWL Lite/OWL relate to each other (sort of "what they add") 17:19:16 Frank - there is a semantic interaction issue raised on public comments - I've forwarded that to WebOnt 17:19:17 ? why not now? oh well. 17:19:59 Frank - documents also need to make more clear what the RDFS/OWL relation is w/respect to graphs and etc. 17:21:53 Mike - nothing to add. Peter/Ian - no real major comments to date - so far I am tracking the comments 17:24:37 ACTION: Chairs to find an editor or process to produce the RDF/RDFS/OWL Lite/OWL comparison/discussion document. JimH to inform SW-CG this is being considered. 17:24:40 -------- 17:24:49 AOB - Deb to scribe next week (thanks again) 17:24:53 -LarryE 17:24:54 -Evan_Wallace 17:24:55 -M_Smith 17:24:57 -DebM 17:24:57 Guus - adjourned 17:24:59 -Lassila 17:24:59 -NickG 17:25:00 -Mike_Dean 17:25:01 -PeterPS 17:25:02 -DanC 17:25:03 -JonStanton 17:25:06 -Ian_Horrocks 17:25:07 -Jim_Hendler 17:25:08 -Pat_Hayes 17:25:41 RRSAgent, pointer? 17:25:41 See http://www.w3.org/2002/08/15-webont-irc#T17-25-41 17:26:45 (i.e. to set the agendums) 17:26:58 -FrankvH 17:26:58 -GuusSchrieber 17:26:58 SW_WebOnt()12:00PM has ended 17:28:05 DanConn has joined #webont 17:31:45 jhendler has left #webont 18:14:50 DanConn has joined #webont 18:15:18 DanConn has changed the topic to: WebOnt adjourned 'till 22Aug 20:05:34 Zakim has left #webont