13:57:45 RRSAgent has joined #ldp 13:57:45 logging to http://www.w3.org/2012/08/27-ldp-irc 13:57:47 RRSAgent, make logs public 13:57:47 Zakim has joined #ldp 13:57:49 Zakim, this will be LDP 13:57:50 Meeting: Linked Data Platform (LDP) Working Group Teleconference 13:57:50 Date: 27 August 2012 13:57:51 ok, trackbot; I see SW_LDP()10:00AM scheduled to start in 3 minutes 13:58:15 don't get upset, no one's available ;) 13:58:19 SW_LDP()10:00AM has now started 13:58:26 +sandro 13:58:38 hmmm? 13:58:51 no call this week, no? 13:59:01 +??P7 13:59:10 +??P6 13:59:39 Yes call this week. There was an agenda, plus it was in the minutes of last week and it's in the channel title.....! 14:00:04 sandro has changed the topic to: next LDP meeting 27-August-2012 AGENDA: http://www.w3.org/2012/ldp/wiki/Meetings:Telecon2012.08.27 14:00:06 ok, thanks (I don't see the channel title, and am lagging on email) 14:00:13 Zakim, ??P6 is me 14:00:13 +oberger; got it 14:00:23 +[IBM] 14:00:31 SteveS has joined #ldp 14:00:47 Zakim, code? 14:00:47 the conference code is 53794 (tel:+1.617.761.6200 sip:zakim@voip.w3.org), MacTed 14:00:53 +OpenLink_Software 14:00:56 Hi all, I won't be able to participate on the phone (traveling), but I will be on IRC. 14:01:04 Zakim, OpenLink_Software has me 14:01:04 +MacTed; got it 14:01:06 Zakim, mute me 14:01:06 sorry, MacTed, I do not know which phone connection belongs to you 14:01:12 -??P7 14:01:12 Zakim, OpenLink_Software is temporarily me 14:01:12 +MacTed; got it 14:01:16 Zakim, mute me 14:01:16 MacTed should now be muted 14:01:19 Zakim, [IBM] is me 14:01:19 +SteveS; got it 14:01:46 Zakim, mute me 14:01:46 oberger should now be muted 14:02:30 bblfish has joined #ldp 14:02:40 hi 14:02:46 +Arthur_Keen 14:02:50 +??P21 14:02:55 ouch 14:03:02 hello Dr larsen 14:03:07 Zakim, who's noisy? 14:03:08 zakim, ??P21 is me 14:03:08 +AndyS; got it 14:03:18 MacTed, listening for 10 seconds I could not identify any sounds 14:03:33 Zakim, who's noisy? 14:03:43 MacTed, listening for 10 seconds I could not identify any sounds 14:03:46 SteveS: or from a plane 14:04:03 + +1.510.698.aaaa 14:04:04 + +1.617.324.aabb 14:04:15 zakim, mute me 14:04:15 AndyS should now be muted 14:04:23 zakim, unmute me 14:04:23 AndyS should no longer be muted 14:04:29 ah 14:04:52 Zakim, who is here? 14:04:52 On the phone I see sandro, oberger (muted), SteveS, MacTed (muted), Arthur_Keen, AndyS, +1.510.698.aaaa, Yves 14:04:54 MacTed has MacTed 14:04:54 On IRC I see bblfish, SteveS, Zakim, RRSAgent, AndyS, Ruben, MacTed, betehess, LeeF, oberger, trackbot, sandro, Yves, ericP 14:05:22 Zakim, aaaa is bblfish 14:05:22 +bblfish; got it 14:05:26 Zakim, who is here? 14:05:27 Arnaud has joined #ldp 14:05:28 On the phone I see sandro, oberger (muted), SteveS, MacTed (muted), Arthur_Keen, AndyS, bblfish, Yves 14:05:33 SteveBattle has joined #ldp 14:05:35 MacTed has MacTed 14:05:38 On IRC I see Arnaud, bblfish, SteveS, Zakim, RRSAgent, AndyS, Ruben, MacTed, betehess, LeeF, oberger, trackbot, sandro, Yves, ericP 14:05:43 +Arnaud 14:05:51 Hi Arnaud 14:06:16 regrets: on stage 14:07:15 was there a conf call last week? 14:07:33 summer time is hard time to stay focused 14:07:59 Yes, bblfish 14:08:10 ah, I thought it was every two weeks in summer 14:08:55 texting via REST APIs while driving ? booh 14:09:32 + +44.754.550.aacc 14:10:49 Zakim, unmute me 14:10:49 oberger should no longer be muted 14:11:36 scribe: SteveS 14:11:50 scribenick: SteveS 14:12:18 +??P32 14:12:30 BartvanLeeuwen has joined #ldp 14:12:33 Topic: Minutes from 22 August 2012 14:12:45 nope 14:12:49 zakim, ??P32 is me 14:12:49 +SteveBattle; got it 14:13:11 ghard has joined #ldp 14:13:14 Arnaud asks if anyone has read minutes…no response 14:13:14 I still have to do my action item 14:13:25 action-4? 14:13:25 ACTION-4 -- Steve Speicher to review SPARQL Graph Store Protocol and suggest how we should move forward with it -- due 2012-09-03 -- OPEN 14:13:25 http://www.w3.org/2012/ldp/track/actions/4 14:13:50 Topic: SteveS slacking on ACTION-4 14:14:04 SteveS to get to in next week or so 14:14:25 Topic: Action reviews 14:15:00 reminder : no meeting next week (Labour day in the US) 14:15:01 bblfish will get to action-5 14:15:41 No update on ACTION-6, Michael had sent regrets for today 14:16:33 Topic: Upcoming meetings 14:16:35 Arnaud: Next telecon is in 2 weeks, September 10 14:16:37 ghard has joined #ldp 14:17:21 sandro: looked into f2f room sizings for larger group, need WG members to actually register 14:18:06 Kalpa has joined #ldp 14:18:14 …can get a bigger room if registration counts are high enough 14:18:35 +??P33 14:18:44 sandro: recommends attending Wed sessions, many find it very valuable 14:18:51 :) 14:18:59 zakim, P33 is ghard 14:18:59 sorry, ghard, I do not recognize a party named 'P33' 14:19:16 Zakim, ??P33 is ghard 14:19:16 +ghard; got it 14:19:23 Excuses for being late. Got network stability problems. 14:19:25 …costs about $50 USD / day for F2F 14:19:53 +Kalpa 14:20:01 ??? asked bblfish if room or something planned for f2f with WebID 14:20:15 SteveS: ??? was me 14:20:34 s/???/oberger/ 14:20:37 €45 until the close of registration (16 October 2012) 14:21:01 Topic: Use Cases and Requirements structure 14:21:15 Zakim, mute me 14:21:15 oberger should now be muted 14:21:16 So I am looking to organise a meeting for WebID and RWW Community Groups at TPAC Lyon, but we are still looking to see if we can get a room. 14:21:16 This is topic ACTION-9 14:21:36 But otherwise I will look to see if we can organise something anyway in Lyon. 14:22:11 Here's the proposal http://lists.w3.org/Archives/Public/public-ldp-wg/2012Aug/0137.html 14:22:39 Arnaud: positive comments from a number looking to hear if any other feedback 14:23:10 SteveBattle: has updated the wiki to take into account this change 14:23:25 http://www.w3.org/2012/ldp/wiki/Use_Cases_And_Requirements 14:23:49 namely changing Use Cases to User Stories, in prep for collecting use cases 14:24:38 SteveS: /me added the link to the action in https://www.w3.org/2012/ldp/track/actions/9 14:24:57 q+ 14:25:17 …plan is to expand on the User Stories, then pull out the more detailed Use Cases and the more detailed Requirements 14:25:22 ack bart 14:25:45 BartvanLeeuwen: Are the use cases/stories still open for contributions? 14:26:00 SteveBattle: Yes 14:26:05 good so I suppose my action item should be a user story 14:26:09 or integrated with one 14:26:55 SteveBattle: Assumes these will be very "CRUDy" based on the scope of this WG 14:28:09 ACTION: SteveBattle to Create at least one Use Case by next meeting due 9/10/2012 14:28:09 Sorry, couldn't find user - SteveBattle 14:29:09 Arnaud: proposed to close action-9 14:29:19 close action-9 14:29:19 ACTION-9 Propose a new structure for the Use Cases and Requirements document closed 14:29:47 q? 14:30:20 SteveBattle: SteveS and Michael (not on call) are interested in developing out the use cases more? 14:30:23 SteveS: Yes 14:31:32 Topic: Serialization format discussion and process 14:32:25 Arnaud: how does the process work for raising issues, like serialization format, and get reviewed and agreed on 14:33:15 sandro: someone raises (creates) an issue in the system, it goes into a pending state, then the WG decides if they accept the issue (something they will work on or valid) and it becomes open 14:33:26 …the WG then works on a resolution 14:35:09 -Arthur_Keen 14:35:14 Arnaud: believes that by definition of our charter and references to member submission, then we can start with that and open issues from there and get WG agreement 14:35:31 +RezaBfar 14:35:42 ArthurK has joined #ldp 14:36:31 RezaBFar has joined #ldp 14:36:31 +ArthurK 14:36:49 q? 14:36:57 q+ 14:37:00 Zakim, unmute me 14:37:00 MacTed should no longer be muted 14:37:03 q+ 14:37:07 @Arnaud - sorry I'm late... 14:37:16 Arnaud: need to make sure the work we do with perhaps a more abstract model then we need to make sure we map it back to RDF model 14:37:23 q+ 14:37:46 bblfish: ? 14:38:00 http://webid.info/spec/ 14:38:48 q+ 14:39:13 bblfish: Expressed my thoughts on this and around the WebID spec. Did require a publish to N3 and clients understand both N3 and RDF/XML 14:39:31 GRDDL 14:39:36 XSPARQL 14:39:51 …would like to add that there is a requirement to support GRDDL for expressing what is supported 14:40:19 ack bblfish 14:40:42 …it is not reasonable to convert some forms not into RDF 14:41:06 q+ 14:41:23 ack SteveBattle 14:41:58 I think turtle is also a standard now http://www.w3.org/TR/turtle/ 14:41:58 +1 to SteveBattle. That's exactly what I'm looking for. 14:42:04 SteveBattle: +1 for openness of serialization of RDF models, would like to support at least one. RDF/XML is reasonable as only W3C Rec spec, perhaps we have at least 1 minimum required 14:42:27 …server could expose what it supports 14:42:41 N3 goes beyond RDF - to be clear here, lets stick to the (soon to be) standard turtle. 14:43:05 N-triples will also be standardised by RDF-WG. 14:43:25 There's no advantage in this scenario to N3 instead of Turtle. 14:43:31 MacTed: says that Arnaud mentioned limit options, but believes we need to be more open to extensibility 14:43:34 That's interesting - I didn't know N3 went beyond RDF. 14:43:43 N3 adds quantification and variables. 14:44:01 So, I think there is 3 things: 1. Some standard query as part of the spec that provides format (so serialization format discovery) 2. Allowance for implementation of serialization of other formats. 3. Implementing at least 2 formats, 1 of which is RDF/XML, the other which we could agree on as a team. 14:44:38 MacTed: resource creation (POST) is that a server can chose to reject or handle that request as needed (transform or handle as is) 14:44:40 ack me 14:44:45 MacTed: I didn't get your concern abouut RDF+XML... 14:44:53 would like to see a transcript 14:45:02 What can't be encoded in RDF/XML? 14:45:13 SteveBattle: that one yes 14:45:31 Properties with URIs that aren't representable as qnames e.g. http://example/1234 14:46:16 Arnaud: not against building an extensible spec but more on the point when there are too many options to achieve same/similar things 14:46:26 q? 14:46:28 and http://example/property# and a few other cases. Tend to be unusual but can be tricky at scale if it gets into the data. 14:46:43 ack Reza 14:47:16 RezaBFar: what problem ? 14:47:24 RezaBFar: Agrees with SteveBattle, doesn't see the need to limit to RDF/XML and have additional format 14:47:34 verbosity ? 14:47:56 ….XML processing has some overhead and should consider less-verbose options for efficiency 14:48:12 q? 14:48:22 JSON-LD would be very much appealing to all the Web2 devs 14:48:32 YAML ? ;) 14:48:48 oberger, more appealing than RDF/XML or than Turtle? 14:49:05 sandro: people who do native JS ? probably 14:49:19 s/sandro:/sandro,/ 14:49:26 concern with RDF/XML: cannot serialize all RDF ... as AndyS says. see http://www.w3.org/DesignIssues/diagrams/n3/venn 14:49:50 q? 14:49:57 oberger, I was asking an (a) or (b) question, but I guess your answer is "both". 14:50:19 sandro: sure, both : no extra parsing 14:50:22 So to summarise my point earlier: 14:50:22 1. Turtle ( http://www.w3.org/TR/turtle/ ) or RDFxml perhaps a SHOULD ( on the http://webid.info/spec/ Turtle, RDFa, RDFxml were made MUST understand by client -- Turtle, RDFxml should be sent by server ) 14:50:22 2. Other formats should be supported but there should be a follow your nose to a GRDDL http://www.w3.org/TR/grddl/ so that one can automatically transforrm it to RDF graphs 14:50:24 3. there is a complicating issue as this LDP requires PUT & POST which means that the server does need to be able to understand the formats sent. 14:50:25 ack SteveS 14:50:26 4. there will be some form of Graph query which will require that the format be queryable as a graph 14:50:32 ISSUE: Determine minimum serialization format for RDF data model 14:50:32 Created ISSUE-1 - Determine minimum serialization format for RDF data model ; please complete additional details at http://www.w3.org/2012/ldp/track/issues/1/edit . 14:50:34 Question: so now that it's an issue, what's next? 14:50:39 s/sandro:/sandro,/ 14:50:53 @Arnaud - how do we resolve the issue since it's a significant issue. 14:50:57 (caution - that diagram is confusion - Turtle can express any RDF - the reification point is not the point - it's old special syntax) 14:51:42 we can move on when everybody's back from vacation more or less ? 14:51:45 @Arnaud - Makes sense. Thanks for the clarification. 14:52:05 Arnaud: answering RezaBFar, need to have a proposal and reach consensus on the issue and record it 14:53:02 sandro: can be good collect more facts on the matter and may need to get to point where just need to pick one 14:53:09 @sandro - thanks. 14:53:30 q? 14:53:30 Sandro's opinion? 14:53:47 next in 2 weeks ? 14:53:47 on RDF/XML, etc.? Sandro was saying something? 14:54:02 Arnaud: any other agenda items? 14:54:38 sandro, my suggestion on JSON-LD is purely speculative 14:54:41 sandro: is a big win in mental clarity on a simple format but think still open in my mind if JSON-LD meets that 14:55:45 sandro: if I had to pick something right now, it would be Turtle but may be things I'm forgetting about RDF/XML 14:56:17 q+ 14:57:03 +1 to bblfish remarks to JSON-LD remark 14:57:09 bblfish: Wonder if there is anything around efficiency with XML binary formats that apply with RDF/XML 14:57:35 FWIW, I agree with Sandro on Turtle. 14:58:25 ... s/JSON-GRDDL/JSON-LD/ 14:58:33 bblfish: question to JSON people, when you publish in json-grddl can be represented as any tree as root of graph and could it confuse them? 14:59:03 Zakim, unmute me 14:59:03 MacTed was not muted, MacTed 14:59:45 q? 14:59:52 q+ to propose strawpoll 14:59:58 MacTed: was in JSON-LD group, started as a way to get JSON people who are using structured data in a more interoperable ways based on RDF concepts 15:00:23 q+ 15:00:46 MacTed: for some similar implementations Turtle makes it very easy but lacks some of the RDF concepts, as linked to before 15:00:46 Turtle is great to read by humans, discovering specs, but in all languages ? 15:01:01 ack Ted 15:01:08 ack me 15:01:08 +1 for Turtle as base, easier to understand 15:01:20 STRAWPOLL: Which one RDF serialization should we pick as our 1-required-serialization, if we had to pick one today? (eg rdf/xml, turtle, json-ld, RDFa, or NONE) 15:01:24 Turtle can express any RDF. 15:01:26 turtle 15:01:27 Turtle 15:01:28 +1 Turtle 15:01:29 Turtle 15:01:29 RDF+XML 15:01:32 Turtle 15:01:33 Turtle 15:01:37 turtle 15:01:39 for implementation 15:01:41 sandro: straw man poll of preferred RDF serialization 15:01:43 (turtle and rdf/XML) 15:01:43 Turtle 15:01:52 rdf/XML 15:01:58 So, I meant (Turtle and RDF/XML) 15:02:00 AndyS - any chance you can rework that Venn with current status? possibly including JSON-LD? 15:02:14 there may be other serializations that didn't exist when it was drawn that should also be added in... 15:02:29 well rdf/xml would be a SHOULD 15:02:35 which libs are turtle compatible ? 15:02:50 ack sandro 15:02:50 sandro, you wanted to propose strawpoll 15:03:04 andy? 15:03:32 ack andy 15:03:34 AndyS: found the diagram was someones opinion for a long time ago and not right 15:03:41 sando: agrees 15:03:48 MacTed: would like to see it updated 15:03:52 bye 15:03:52 -bblfish 15:03:54 bye 15:03:56 thanks and bye 15:03:56 -RezaBfar 15:03:56 bye 15:03:57 bye 15:03:58 -Arnaud 15:03:59 bye 15:04:01 -Yves 15:04:02 -MacTed 15:04:02 -SteveBattle 15:04:02 -AndyS 15:04:04 -SteveS 15:04:06 -sandro 15:04:07 -ghard 15:04:07 -oberger 15:04:10 - +44.754.550.aacc 15:04:14 -ArthurK 15:04:16 -Kalpa 15:04:17 SW_LDP()10:00AM has ended 15:04:17 Attendees were sandro, oberger, MacTed, SteveS, Arthur_Keen, AndyS, +1.510.698.aaaa, +1.617.324.aabb, Yves, bblfish, Arnaud, +44.754.550.aacc, SteveBattle, ghard, Kalpa, RezaBfar, 15:04:18 ... ArthurK 15:04:27 Ruben has left #ldp 15:04:41 SteveBattle has left #ldp 15:04:49 MacTed, note that http://www.w3.org/DesignIssues/diagrams/n3/venn is about expressibility, not RDF. Full N3 and SPARQL WHERE include lots of things that are not, and never will be, RDF. 15:04:50 rssagent, generate minutes 15:04:56 BartvanLeeuwen has left #ldp 15:06:11 RRSAgent, generate minutes 15:06:11 I have made the request to generate http://www.w3.org/2012/08/27-ldp-minutes.html SteveS 15:08:03 sandro: well, maybe a localization thing ? 15:08:15 SteveS, are you happy with http://www.w3.org/2008/06/wiki_scribe/?source=http://www.w3.org/2012/ldp/wiki/Chatlog_2012-08-27 ? 15:08:40 oberger has joined #ldp 15:08:52 oberger, more likely a setting I changed and forgot. 15:09:05 sandro: same with LANG=C xchat 15:09:20 the problem is I want comma when I'm not scribing and colon when I am scribing. 15:09:59 sandro, that would going to be my question if you were trying to change my scribe entries 15:10:19 sandro, indeed, a preferences setting :-) 15:10:33 well, I'll know what to do when in the next meeting 15:10:34 sandro, I'm fairly "happy"….guess I need to hack the few errors noted in there 15:11:23 :-) 15:11:50 sandro - yes, I understand that the VENN is about what can be expressed in each serialization. as has been noted, it was drawn a long time ago, and no longer (if it ever did) accurately depicts the differences between the serializations. I think redrawing it with explicit focus on "how much of `All RDF` can be expressed in/with this serialization?" including new serializations (e.g., JSDON-LD) and updates of old (e.g., Turtle) 15:11:50 would be useful. 15:12:53 MacTed, my understanding is there's no need, as Turtle, RDFa, JSON-LD and N-Triples can all express all of RDF. RDF/XML lacks a few bits that no one should ever put in their RDF anyway. 15:13:09 s/RDF/RDF+XML/ 15:14:08 anyway... what's the ETA for implementations ? ;) 15:15:52 1999 ;-) 15:20:15 The current RDF-WG has no plans to change RDF/XML. 15:20:35 (roughly - no one wants to touch it!) 15:20:59 I suppose the need I see for updating the VENN is that leaving it as is promotes continued incorrect understanding. 15:22:00 granted, it's no longer live-displayed in the N3 design issue ... but it's relatively well known and still live if you know to look for it 15:23:17 http://www.googlefight.com/index.php?lang=en_GB&word1=RDF+Turtle&word2=RDF+XML :-) 16:00:35 SteveS_ has joined #ldp 16:00:52 SteveS__ has joined #ldp 16:06:42 gavinc has joined #ldp 16:47:28 SteveS has joined #ldp 17:17:56 Zakim has left #ldp 17:44:59 7am Monday morning telecons suck 18:40:57 bblfish has joined #ldp 19:23:59 http://www.googlefight.com/index.php?lang=en_GB&word1=RDF+Turtle&word2=%22RDF%2FXML%22 19:24:47 strange how Google doesn't count `"RDF/XML"` in the same way as it does `RDF XML`... 21:31:58 johnlsheridan has joined #ldp 21:35:39 LeeF has joined #ldp 22:46:12 bblfish has joined #ldp 23:21:38 bblfish has joined #ldp 23:35:33 SteveS has joined #ldp