--- Log opened Fri Aug 01 00:00:39 2014
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travis-ci[travis-ci] it's khalednasr's turn to pay the next round of drinks for the massacre he caused in khalednasr/shogun: http://travis-ci.org/khalednasr/shogun/builds/3139126704:49
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travis-ci[travis-ci] it's khalednasr's turn to pay the next round of drinks for the massacre he caused in khalednasr/shogun: http://travis-ci.org/khalednasr/shogun/builds/3139131105:22
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shogun-notifier-shogun: Abinash Panda :develop * abadcc8 / / (3 files): https://github.com/shogun-toolbox/shogun/commit/abadcc8b899750efb9f78b31a6d78253d792f75208:08
shogun-notifier-shogun: Added HierarchicalMultilabelModel class08:08
shogun-notifier-shogun: Abinash Panda :develop * 377ad64 / / (3 files): https://github.com/shogun-toolbox/shogun/commit/377ad648da57259df4a33ea760c50e9116f4a24008:08
shogun-notifier-shogun: Modified HierarchicalMultilabelModel:08:08
shogun-notifier-shogun:     * Changed get_attr_vector -> get_label_vector08:08
shogun-notifier-shogun:     * Minor refactorings in tests and source code08:08
shogun-notifier-shogun: tklein23 :develop * adda76f / / (3 files): https://github.com/shogun-toolbox/shogun/commit/adda76f5bc96e6e8006c1a74bd7785a0cc543e7d08:08
shogun-notifier-shogun: Merge pull request #2426 from abinashpanda/develop08:08
shogun-notifier-shogun: Added HierarchicalMultilabelModel class08:08
shogun-buildbotbuild #2453 of bsd1 - libshogun is complete: Failure [failed test]  Build details are at http://buildbot.shogun-toolbox.org/builders/bsd1%20-%20libshogun/builds/2453  blamelist: Abinash Panda <abinash.panda.ece10@itbhu.ac.in>08:21
shogun-buildbotbuild #2454 of bsd1 - libshogun is complete: Failure [failed test]  Build details are at http://buildbot.shogun-toolbox.org/builders/bsd1%20-%20libshogun/builds/2454  blamelist: Abinash Panda <abinash.panda.ece10@itbhu.ac.in>, tklein23 <tklein23@users.noreply.github.com>08:34
shogun-buildbotbuild #35 of osx2 - modular_interfaces is complete: Failure [failed csharp modular]  Build details are at http://buildbot.shogun-toolbox.org/builders/osx2%20-%20modular_interfaces/builds/35  blamelist: Abinash Panda <abinash.panda.ece10@itbhu.ac.in>09:09
shogun-buildbotbuild #36 of osx2 - modular_interfaces is complete: Failure [failed csharp modular]  Build details are at http://buildbot.shogun-toolbox.org/builders/osx2%20-%20modular_interfaces/builds/36  blamelist: Abinash Panda <abinash.panda.ece10@itbhu.ac.in>, tklein23 <tklein23@users.noreply.github.com>09:13
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@besser82HeikoS, G'Morning ^^  Back in London?11:09
@HeikoSbesser82: hi, yes :)11:09
@besser82HeikoS, journey was good?11:09
@besser82You saw my email about the torrents?11:10
@besser82so if you want the 'raw'-stuff just go on and leech it  ;)11:11
@besser82HeikoS, ^^11:11
@HeikoSbesser82: hey11:15
@HeikoSbesser82: ok will do, just one file, i wondered about the sound11:15
@besser82HeikoS, allrighty... ^^11:15
@HeikoSbesser82: sorry for delayed response11:15
@besser82HeikoS, np ^^ in Trasmission you can choose the file from the torrent you want to load, then ^^11:16
@besser82HeikoS, take the raw-video thing then...11:16
@HeikoSbesser82: ok thanks, checking11:16
@besser82HeikoS, np yw ^^11:17
@HeikoSbesser82: downloading11:21
@HeikoSbesser82: thanks so much for putting the videos up so promtly, amazing!11:21
@besser82HeikoS, many thanks!!! =)11:22
@besser82HeikoS, I can see no torrent connection from you, yet...11:23
@HeikoSi might not be allowed to torrent at work11:24
@besser82so just start downloading somewhere you are allowed to; I'll keep seeding...11:24
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@besser82I'm currently creating new chroots for fc21, fc_rawhide and CentOS7.13:16
@besser82Will upload them in a few minutes, so you can get them running on fatbot.  Links are following...13:17
@besser82wiking, ^^13:17
@besser82wiking, upload is running... you can fetch them from here:  https://besser82.fedorapeople.org/chroots/13:21
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sonne|workwiking: seen my email?14:38
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lambdayHeikoS: hi!16:16
@HeikoSlambday:  hi16:17
lambdayHeikoS: I was checking the approach you suggested - one issue is.. we are not computing trace(inv(...)) but trace(A*inv(B)*C*inv(D)) sort of thing...16:18
lambdaythe code I pasted computes this A*inv(B) without storing inv(B)16:18
lambdayand then for trace we can use the trick you mentioned16:19
@HeikoSlambday: ok then16:20
@HeikoSlambday: just wanted to make sure we never store the inv :)16:20
lambdayHeikoS: just out of curiosity - what's so bad about storing the inverse? except the extra memory requirement16:20
@HeikoSlambday: its unstable to do this16:20
@HeikoSlambday: might easily explode16:20
@HeikoSlambday: and one gets lots of rounding errors16:21
lambdayHeikoS: okay16:21
@HeikoSlambday: matlab these days even gives a warning when one does inv(A)*x16:21
@HeikoSand tell you to do "\" operator16:21
lambdayHeikoS: alright16:21
lambdayHeikoS: so do you think this approach is okay? https://gist.github.com/lambday/66e637b46109e132181d#file-inverse_benchmark-cpp-L7416:22
@HeikoSlambday: for matrices that are a bit largetr and a bit less good conditioned, things fall apart very quickly16:22
@HeikoSlambday: solving the matrix times identity vector thing?16:22
@HeikoSlambday: yeah thats better, but even better would to avoid all this business at all and do svd maybe16:23
lambdayHeikoS: yes... and then using the soln vectors to compute matrix multiplication using dot on the fly16:23
lambdaywe already have dot in linalg16:23
@HeikoSlambday: yeah but thats also unstable16:23
lambdayso that's good16:23
@HeikoSlambday: so if we have A*inv(B)*C*inv(D)16:23
@HeikoSlambday: that can be computed and stored16:24
lambdayHeikoS: the whole thing? we actually need the trace of this16:24
@HeikoSlambday: yeah sorry16:24
@HeikoSlambday: too many things going on at once ;)16:25
@HeikoSlambday: no i think your approach is fine then16:25
@HeikoSlambday: should be ok16:25
lambdayHeikoS: hehe.. okay let me know when you're free16:25
@HeikoSlambday: but maybe test it a bit16:25
@HeikoSlambday: free now, thats fine, just giving excuses why i dont know things exactly16:26
@HeikoSso yeah, do this one,16:26
@HeikoSwith the dot in linalg, that is axtually great16:26
@HeikoSlambday: the loop should be in poarallel16:26
@HeikoSis the chol.solve thread safe?16:26
lambdayHeikoS: yeah that too I did in this code... gained a slight improvement16:26
lambdayoh that... umm not sure16:27
lambdayI was talking about computing a whole bunch of dots in parallel16:27
@HeikoSlambday: ok that is also fine16:27
@HeikoSlambday: i mean you can move the system solve inside there (more expensive than dot in fact)16:27
@HeikoSso a few (chol.solve, dot-product) things run in parallel16:27
@HeikoSlambday: just saw you have an omp pragma there16:28
@HeikoSlambday: does this work if you move it up a line?16:28
lambdayso inside each thread - solve one system for each col of identity matrix and then compute dots16:28
@HeikoSlambday: in fact16:28
@HeikoSlambday: its good as it is16:28
@HeikoSlambday: so keep it :)16:28
@HeikoSlambday: i gotta go to a talk now, let me know how things go16:29
lambdayHeikoS: alright16:29
@HeikoSlambday: very nice that you investigated this properly!16:29
lambdayHeikoS: as of now I'm just using eigen3 cholesky and dot - will change it when linalg is there in develop16:29
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@lisitsynHeikoS: hey19:38
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@lisitsynanother try19:40
@lisitsyniglesiasg hey :)19:40
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iglesiasg_lisitsyn: hello hello19:43
@lisitsyniglesiasg_: share your experience on the workshop ;)19:43
@lisitsynis there anything new going on?19:43
@lisitsynI feel lost :)19:43
iglesiasg_it was pretty cool :-)19:43
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iglesiasglisitsyn: why do you feel lost?19:45
@lisitsyniglesiasg: well I have no idea what you guys discussed there :)19:45
@lisitsynso I am a bit out of the process19:45
iglesiasgapart from the stuff of the videos19:46
iglesiasgwe discussed a bit on the mentor summit19:46
iglesiasgI must buy by plane tickets asap btw19:46
@lisitsyndidn't you yet?19:46
iglesiasgwell, no19:47
iglesiasgit is more than two and a half months left19:47
iglesiasgbut yes, I must do it soon anyway19:47
@lisitsynha true19:47
@lisitsynI just thought they are messing with these returns already19:47
@lisitsynPOs whatever19:48
@lisitsyniglesiasg: I am curious whether anything about kaggle is still of interest for any of us19:49
@lisitsynit died immediately :D19:49
iglesiasglisitsyn: we didn't bring up that topic in fact19:49
@lisitsyniglesiasg: I see19:51
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shogun-notifier-shogun-web: Fernando Iglesias :master * e230c3f / static/workshop/2014/ (7 files): https://github.com/shogun-toolbox/shogun-web/commit/e230c3f75a668a906e682999d1fd344246f9c65c20:13
shogun-notifier-shogun-web: Slides workshop 2014.20:13
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shogun-notifier-shogun: Fernando Iglesias :develop * 45fd6db / doc/ipython-notebooks/statistics/mmd_two_sample_testing.ipynb: https://github.com/shogun-toolbox/shogun/commit/45fd6dbb1abbf3336e0384acf42b9fb05fc3f89922:15
shogun-notifier-shogun: Minor fixes to mmd notebook.22:15
shogun-buildbotbuild #2455 of bsd1 - libshogun is complete: Failure [failed test]  Build details are at http://buildbot.shogun-toolbox.org/builders/bsd1%20-%20libshogun/builds/2455  blamelist: Fernando Iglesias <fernando.iglesiasg@gmail.com>22:23
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shogun-buildbotbuild #37 of osx2 - modular_interfaces is complete: Failure [failed csharp modular]  Build details are at http://buildbot.shogun-toolbox.org/builders/osx2%20-%20modular_interfaces/builds/37  blamelist: Fernando Iglesias <fernando.iglesiasg@gmail.com>22:43
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--- Log closed Sat Aug 02 00:00:00 2014