[11:40:56] Lydia_WMDE: ping [12:19:40] tante: pong [12:20:12] Since we got a Skype Thingy going tomorrow I thought we should maybe exchange Skype Account names? [12:20:40] tante: yeah - Denny_WMDE is the one who's skype account will be used [12:21:29] sent [12:22:39] tante: anything else you need from our side? [12:22:42] tante: how are we going to do slides? [12:23:51] what is the background of the audience? [12:24:05] computer science? economics? something else? [12:24:53] Denny_WMDE: Computer Science/Business Informatics, all Students are working on their Master's degree [12:25:04] Slides we could do via Desktop Sharing [12:25:25] (as in you have slides run on your machine and pipe it through Skype) [12:25:53] ok [12:26:40] We have already covered (on a sorta High Level) different concepts for knowledge representation and collaboration. So people /should/ be able to understand even more detailled or technical aspects [13:40:42] JeroenDeDauw: Hey, wikidata is somewhat similar to smw right? how do you handle the performance issues in wikidata? [13:41:32] nischayn22: we don't have performance issues yet :p [13:41:40] nischayn22: we are building this thing from ground up [13:41:55] nischayn22: and just being thoughtful about performance stuff [13:42:23] nischayn22: hows your work going btw? Have you started actual coding yet? [13:42:51] JeroenDeDauw: I meant smw isn't used in wikipedia because it will be slow to handle so much of data, how do you aim to keep that problem away from wikidata? [13:43:28] nischayn22: we'll be storing the data differently and will also simply not allow for expensive queries [13:43:40] nischayn22: only "simple" queries will be allowed [13:43:44] JeroenDeDauw: I made some new tables and have somewhat started to write Store3 too [13:43:53] So it'll be a lot less powerful then the ask language in a way [13:44:12] JeroenDeDauw: so asking for people born on 1990 will be simple or complex? [13:44:40] it will be easy to do for users... [13:44:50] But computationally that is one of the more complex ones [13:45:03] Since you'd need to figure out if stuff is in that period [13:45:09] But I guess you just picked a bad example [13:45:25] If you just want all the cities of Germany, then it's simple [13:45:48] or if you want all those with a population larger then x sorted in some way [13:45:51] still simple [13:46:19] JeroenDeDauw: didn't get what's the difference with my example . you still have to search the property values for a particular property [13:47:06] nischayn22: if you have a property holding the year then yeah, you're right, it's simple as well [13:47:50] JeroenDeDauw: it would be nice if you could give me a link or example to a complex use of ask in smw [13:47:58] I have mostly tried only the simple ones [13:48:02] nischayn22: I don't think that you should focus to much on storage via alternate systems in SMW - there is more low hanging fruit to be had before that :p [13:49:01] nischayn22: http://semantic-mediawiki.org/wiki/Help:Selecting_pages#Subqueries_and_property_chains [13:49:13] well Markus said first we should clean up the db implementation and than it will be easier to work on other stuff [13:49:59] And you can pretty much arbitrarily add conjunctions and disjunctions (well, there is some limit, but it does not prevent you from doing expensive stuff). We'll limit this a lot more in Wikidata [13:50:06] Right [13:50:26] It'd be good to have this cleaned up [13:50:31] Because it's a mess :/ [13:51:23] we are planning to have separate tables for some *highly* used properties [13:53:40] and I also proposed new tables for storing all data categorized by subjects, see the last one here http://www.semantic-mediawiki.org/wiki/Talk:SQLStore_Update#Database_design_for_faster_query_answering [15:08:13] nischayn22: looks good :) [21:36:50] bonne nuit~