| --- Log opened Fri Jun 21 00:00:54 2013 | ||
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| shogun-buildbot | build #434 of nightly_default is complete: Failure [failed compile] Build details are at http://www.shogun-toolbox.org/buildbot/builders/nightly_default/builds/434 | 03:29 |
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| thoralf | Hey. | 07:51 |
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| lambday | lisitsyn: hey | 11:12 |
| lambday | lisitsyn: good morning | 11:12 |
| lisitsyn | lambday: hey | 11:12 |
| lambday | lisitsyn: one question - if a PR is not merged yet, can't I send another PR with a different commit? I want to create two separate PRs with those | 11:13 |
| lisitsyn | lambday: yes from different branches | 11:13 |
| lambday | ohkay | 11:14 |
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| vgorbati | lisitsyn: hi there, I am sorry for disappearing - I had a really tough preparation for my bachelor stuff (I did not expect myself that it would eat so much time). But now I am finally free) Did somebody already implement neural networks for shogun?) | 11:35 |
| lisitsyn | vgorbati: why sorry, just take your time, you are not on duty :) | 11:49 |
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| stepan_ | Hi, I wrote simple test using shogun::CGMM, here http://pastebin.com/pzAG4XEp. Running this program with valgrind reports errors http://pastebin.com/mHZpJD93. There are some definitely lost bytes. Could you please advice me where the bug is? | 12:05 |
| lambday | stepan_: its probably because you are SG_UNREF-ing features | 12:09 |
| stepan_ | lambday: ok, I will test it without SG_UNREF, and let you know | 12:09 |
| stepan_ | lambday: run it withou SG_UNREF and still definitely lost bytes errors | 12:10 |
| lambday | stepan_: nono.. try this.. don't create features with "new", or, create both gm and features by new | 12:10 |
| stepan_ | lambday: ok, I will try it... | 12:11 |
| lambday | then SG_REF gm, and then when you're done with it, do SG_UNREF(gm) | 12:11 |
| lambday | (I am not so sure though :( ) | 12:12 |
| lambday | stepan_: you can try "gist" for pasting codes and results :) | 12:13 |
| stepan_ | othanks for info, I tried first version without the "new" for features and the report is here https://gist.github.com/anonymous/5830272. No lost bytes but sigseg. So I will try the second advice... | 12:16 |
| stepan_ | creating "new" gm, code and report here https://gist.github.com/anonymous/5830320. Still errors | 12:24 |
| lisitsyn | vgorbati: so what's up, are you done with your bachelors? | 12:25 |
| vgorbati | lisitsyn: well, at least I could warn you beforehand, but I really wasn't aware that I would be so busy) | 12:26 |
| vgorbati | lisitsyn: yes, I finally has my diploma:) | 12:26 |
| lambday | stepan_: checking.. | 12:27 |
| stepan_ | lambday: thanks | 12:27 |
| lisitsyn | vgorbati: ahh congrats then! | 12:27 |
| vgorbati | lisitsyn: speaking about neural networks: this is what I have in mind right now: http://www.codeuml.com/?635074069489821901 . I'll start with implementing FeedforwardNetwork and BackpropagationTrainer for it. What do you think? | 12:27 |
| vgorbati | lisitsyn: it is on the very abstract level, without any details | 12:29 |
| lisitsyn | vgorbati: I admit I don't know what is the best approach here as I never designed NNs | 12:29 |
| vgorbati | lisitsyn: well, I did take a look at some libraries as sonney suggested. Some of them do not use inheritance at all, some do:) Its actually quite a difficult problem, since NN's architecture are really different, and its hard to find something general in all types of NNs:) | 12:30 |
| lisitsyn | vgorbati: I think we should try to implement DBN | 12:31 |
| vgorbati | lisitsyn: dynamic bayesian networks? | 12:32 |
| vgorbati | lisitsyn: or deep belief networks?) | 12:32 |
| lisitsyn | vgorbati: yes, deep belief network | 12:33 |
| vgorbati | lisitsyn: that's quite an ambitious goal:) But anyway, DBF are layered networks, so starting with feedforward nets seems reasonable | 12:35 |
| lambday | stepan_: can you try adding SG_REF(features) as well? https://gist.github.com/anonymous/5830320#file-gistfile1-cpp-L50 ?? | 12:37 |
| stepan_ | lambday: yes I done it and still leaks... | 12:39 |
| lambday | stepan_: :( sorry man! can't figure it out :( lisitsyn could you please take a look? | 12:40 |
| stepan_ | lambday: thats ok, thanks for help anyway | 12:41 |
| vgorbati | lisitsyn: then I will start with feedforward nets, if you do not mind. After that, we can try to slowly move towards DBNs. The main architectural question I have to you (and other main contributors), is about training: either I should use 'Trainer's classes, as in the diagram I provided, or just make a method 'train' in the network class (and add some paramater to it, called 'TrainingType' or something). | 12:41 |
| vgorbati | lisitsyn: I prefer the 'Trainer's class approach, but some popular NN's libraries use the second one as well.. | 12:42 |
| lisitsyn | lambday: sorry I didn't following | 12:47 |
| lisitsyn | what's up? | 12:48 |
| lambday | lisitsyn: so stepan_ has this code which leaks | 12:48 |
| lisitsyn | vgorbati: I don't mind any approach as I don't understand how to design them properly :) | 12:48 |
| stepan_ | lisitsyn: Hi, I wrote simple test using shogun::CGMM, here http://pastebin.com/pzAG4XEp. Running this program with valgrind reports errors http://pastebin.com/mHZpJD93. There are some definitely lost bytes. Could you please advice me where the bug is? | 12:48 |
| stepan_ | and after seome consulatation https://gist.github.com/anonymous/5830320#file-gistfile1-cpp-L50 | 12:49 |
| lisitsyn | stepan_: the second leak is missed SG_UNREF(knn) I guess | 13:01 |
| lisitsyn | in GMM | 13:01 |
| lisitsyn | stepan_: the first leak is bug in CGaussian | 13:02 |
| lisitsyn | stepan_: so no bug in your code | 13:02 |
| stepan_ | lisitsyn: aha so it's bug in library? | 13:03 |
| stepan_ | strange, I was trying mlpack GMM as well, and also found some bugs in library... | 13:04 |
| stepan_ | is GMM some obscure method? | 13:09 |
| stepan_ | I don't understadn machine learning, just implementing GMM | 13:10 |
| lisitsyn | stepan_: obscure? what do you mean by that? | 13:10 |
| stepan_ | lisitsyn: that it's not used often, some other approach is preferable so proper implementations are lacking | 13:11 |
| lisitsyn | stepan_: ahh no, I wouldn't say so | 13:12 |
| lisitsyn | stepan_: well it scales bad | 13:12 |
| lisitsyn | but is indeed better than simple k-means | 13:13 |
| stepan_ | ok. Thanks all of you for helping me with shogun. It's pitty I can not use it for GMM | 13:20 |
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| gsomix | hello | 13:58 |
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| lambday | anyone got his welcome package? just curious :-/ | 19:46 |
| pickle27 | mine arrived! | 19:46 |
| van51 | lambday: I got it this morning | 19:46 |
| lambday | pickle27: van51 awesome! mine didn't :( | 19:46 |
| lambday | votjakovr: yours? | 19:47 |
| van51 | lambday: be patient :) | 19:47 |
| pickle27 | I'm sure it will show up soon | 19:47 |
| lambday | van51: pickle27 yes :) | 19:47 |
| van51 | I was looking forward to the t-shirt | 19:47 |
| van51 | but they told me you get that at the end :( | 19:47 |
| lambday | van51: me too | 19:47 |
| lambday | van51: oh! | 19:47 |
| lisitsyn | heh yes t-shirt arrives later | 19:48 |
| pickle27 | me too damn! | 19:48 |
| van51 | pity | 19:48 |
| lambday | end means after end term? | 19:48 |
| pickle27 | I was actually just at mountain view and hit up the google store | 19:48 |
| lambday | pickle27: you bought some stuffs there? | 19:48 |
| lambday | ah, moutain view :D | 19:48 |
| lambday | hey there is this movie coming, "internship".. trailer looks funny | 19:49 |
| pickle27 | yeah I haven't seen it yet | 19:49 |
| pickle27 | looks like it might be kinda funny | 19:49 |
| lambday | pickle27: its not released yet I guess.. the "wedding crashers" group again, huh :D | 19:50 |
| pickle27 | lambday: yeah I bought a google shirt | 19:50 |
| lambday | pickle27: great, man! | 19:50 |
| lambday | (y) | 19:50 |
| pickle27 | they had some pretty sweet stuff in the store | 19:50 |
| pickle27 | you need to be with an employee to be allowed in | 19:50 |
| lambday | gotta be | 19:50 |
| lambday | how was your interview? I've read that you had one | 19:51 |
| pickle27 | lambday: it was okay, I was interviewing for the montreal office and it wasn't as cool as mountain view :( | 19:51 |
| pickle27 | I actually accepted one of my other offers yesterday | 19:51 |
| pickle27 | so no Google for me ... yet | 19:52 |
| lambday | pickle27: nothing is :( | 19:52 |
| lisitsyn | pickle27: what is bad about montreal office? | 19:52 |
| lambday | pickle27: congratulations, man! :) | 19:52 |
| pickle27 | lambday: thanks! | 19:52 |
| pickle27 | lisitsyn: it was just smaller and most of the people were older and quieter | 19:53 |
| pickle27 | mountainview had a lot more life | 19:53 |
| lambday | lol | 19:53 |
| lambday | quiter is bad, really really bad :D | 19:54 |
| lambday | quieter* | 19:54 |
| pickle27 | lambday: where are you at with school? | 19:54 |
| lisitsyn | well I wish there was less life in some of my co-workers | 19:55 |
| pickle27 | lisitsyn: haha! | 19:55 |
| lambday | pickle27: I'm from Indian Institute of Technology, Bombay, India | 19:55 |
| pickle27 | lambday: very cool! | 19:55 |
| lambday | lisitsyn: get married :P | 19:55 |
| pickle27 | lambday: I got to visit India earlier this yeah | 19:55 |
| pickle27 | year* | 19:55 |
| lambday | pickle27: cool, man! where did you visit? | 19:56 |
| pickle27 | I was in the north though, went to IIT Kanpur and BITS Pilani | 19:56 |
| lisitsyn | lambday: btw about marriage, is that true about that recent law in india? | 19:56 |
| lambday | lisitsyn: what law? | 19:56 |
| lisitsyn | like if you do the right things with a girl you are considered married | 19:56 |
| lambday | if you have sex, you'll be considered as married? | 19:56 |
| lisitsyn | :D | 19:56 |
| lisitsyn | yes-yes | 19:56 |
| lambday | lol | 19:56 |
| pickle27 | then I went on a bit of a tourist tour and saw Jaipur, Delhi and Agra | 19:56 |
| lisitsyn | that's crazy funny | 19:56 |
| lambday | lisitsyn: no frickin' idea! these guys are freaks! | 19:56 |
| lambday | pickle27: awesome!!! delhi is like my 2nd home :D | 19:57 |
| pickle27 | neat | 19:57 |
| lisitsyn | lambday: our guys recently wanted to restrict oral sex | 19:57 |
| lisitsyn | :D | 19:57 |
| lambday | lisitsyn: fuck!! no :( | 19:57 |
| pickle27 | lambday: so are you still in undergraduate or a masters? | 19:57 |
| lambday | pickle27: masters... will be graduating next year | 19:58 |
| pickle27 | nice! | 19:58 |
| lambday | pickle27: you too final year, right? | 19:58 |
| pickle27 | I'm just finishing my masters | 19:58 |
| pickle27 | yeah! | 19:58 |
| lambday | pickle27: great! I can't wait to get out of the campus! | 19:58 |
| lambday | will be sitting for job placement this year, in Dec.. wish me luck :) | 19:59 |
| pickle27 | lambday: yeah its getting that way for me too | 19:59 |
| pickle27 | will do! | 19:59 |
| lisitsyn | I am quite tired of dormitories too :D | 19:59 |
| lambday | lisitsyn: hehehe :D you should really consider about the marriage stuff then :P | 20:00 |
| lisitsyn | lambday: why that? | 20:00 |
| lambday | don't have to stay in dormitories :D | 20:00 |
| lisitsyn | well we are together with my gf for a few years like 5 already but still why :D | 20:00 |
| lisitsyn | I don't have to stay here | 20:01 |
| lisitsyn | I just save some money | 20:01 |
| lambday | lisitsyn: hahaha! that's superb :D | 20:01 |
| lisitsyn | because it is of much more cost to rent a flat | 20:01 |
| lisitsyn | like 500$/month | 20:01 |
| lambday | oh crap! | 20:01 |
| lisitsyn | here I pay like | 20:02 |
| lisitsyn | 40-50$ may be | 20:02 |
| lisitsyn | I don't remember | 20:02 |
| lisitsyn | :D | 20:02 |
| lambday | hahaha :D great | 20:02 |
| lambday | I have to pay $500 per semester for food+hostel+insti fees.. :( | 20:03 |
| lisitsyn | I don't know about rates is that a lot for you? | 20:04 |
| lisitsyn | I mean gsoc stipend for pickle27 costs much less than for you I guess :) | 20:05 |
| lisitsyn | wrong word, not costs - offers | 20:06 |
| pickle27 | yeah I mean the stipend is quite a lot here but I imagine it would go further in other parts of the world | 20:07 |
| lambday | well, I earn $300 a month, so.. yea that's a lot :( | 20:07 |
| pickle27 | did you mean for a smile at the end there? | 20:08 |
| lambday | pickle27: I meant the fees :D about gsoc, yayyy :D | 20:08 |
| pickle27 | ah gotcha | 20:08 |
| lisitsyn | one reason I decided not to participate in this year's gsoc as student is that I earn more at job now | 20:09 |
| lambday | lisitsyn: hehe good for us :D | 20:09 |
| pickle27 | could you have participated? I thought you were done with school | 20:10 |
| lisitsyn | pickle27: you are older ;) | 20:10 |
| lambday | lisitsyn: how old are you? :-o | 20:10 |
| pickle27 | lisitsyn: really? neat | 20:10 |
| lisitsyn | lambday: 22 | 20:11 |
| lambday | lisitsyn: LOL =) | 20:11 |
| lambday | you old man! | 20:11 |
| lambday | :P | 20:11 |
| lisitsyn | lambday: you are of the same year or? | 20:14 |
| pickle27 | omg did you guys try the new github ui? | 20:14 |
| lisitsyn | pickle27: I don't get that, they changed everything again :D | 20:14 |
| lambday | pickle27: I tried and not a day passes that I don't regret it | 20:14 |
| pickle27 | I just clicked to try I hope I dont regret | 20:15 |
| lambday | lisitsyn: I'm 26, sadly | 20:15 |
| lisitsyn | lambday: ahh :D | 20:15 |
| pickle27 | age is but a state of mind | 20:15 |
| lambday | true that ;) | 20:15 |
| lisitsyn | heh didn't know | 20:16 |
| lisitsyn | pickle27: is that you are now 27 and later 28? ;) | 20:16 |
| lambday | you couldn't possibly be 22 :-/ you said you're final years masters | 20:16 |
| lisitsyn | lambday: not final | 20:17 |
| lisitsyn | first year | 20:17 |
| lambday | prefinal | 20:17 |
| lisitsyn | I finished high school when I was 17 (like everybody does here) | 20:17 |
| lisitsyn | 4 years of bachelors | 20:17 |
| lisitsyn | lambday: where is the error? ;) | 20:19 |
| lambday | lisitsyn: hmm... sounds legit | 20:19 |
| lambday | I finished when I was 18, took 2 years break from studies, bachelors 4 years, 2 years in masters :-/ | 20:19 |
| pickle27 | lisitsyn: no I am 24 | 20:19 |
| lisitsyn | pickle27: right between me and lambday | 20:19 |
| pickle27 | indeed | 20:19 |
| lambday | and Heiko? | 20:20 |
| lisitsyn | lambday: he is slightly older than you iirc | 20:20 |
| lambday | hmmmm.. | 20:21 |
| pickle27 | do either of you know R? | 20:22 |
| lisitsyn | pickle27: tried to learn it but you know | 20:24 |
| lambday | nope! :( | 20:25 |
| pickle27 | dang | 20:25 |
| pickle27 | there is this one line in jdiag that I don't understand and google is not being helpful :( | 20:25 |
| pickle27 | ctot.prov <- ctot | 20:26 |
| pickle27 | I don't know what .prov is doing | 20:26 |
| lisitsyn | pickle27: sounds very martian | 20:27 |
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| pickle27 | hmm | 20:29 |
| gsomix_ | good evening, old people, hehe | 20:29 |
| pickle27 | alright I'll be back in a bit I need a snack | 20:29 |
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| --- Log closed Sat Jun 22 00:00:55 2013 | ||
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