| --- Log opened Mon Mar 19 00:00:19 2012 | ||
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| hpsoar | hi, my github id is hpsoar | 08:48 |
|---|---|---|
| hpsoar | today, I compiled and installed shogun on my notebook with linux os | 08:49 |
| hpsoar | just now, i set up my github tools, and successfully sent a pull request test | 08:49 |
| hpsoar | I had encountered some problems when install shogun, and run the examples | 08:50 |
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| hpsoar | 1. firstly, I install through apt-get, but the examples doesn't work with errors like "cannot import name AveragedPerceptron" | 08:52 |
| n4nd0 | hpsoar: hey! so the pacakge is not really up to date | 08:54 |
| n4nd0 | hpsoar: you should try to compile and install from source, the code in github | 08:55 |
| hpsoar | yes, I reinstalled through the source code | 08:55 |
| hpsoar | the examples can run, but some ends up unconverged | 08:56 |
| n4nd0 | hpsoar: I am not sure if I follow | 08:56 |
| n4nd0 | hpsoar: so it seems that you are trying out python examples, did you install with python support? | 08:57 |
| hpsoar | yes | 08:57 |
| n4nd0 | ./configure --interfaces=python_modular ?? | 08:57 |
| hpsoar | yes | 08:57 |
| n4nd0 | ok | 08:57 |
| n4nd0 | and you are able or not to run examples? | 08:57 |
| hpsoar | yes | 08:57 |
| n4nd0 | then everything is good :) | 08:58 |
| hpsoar | ok, I want participate in the gsoc project, I think I need to spend some time getting familiar with the project. thanks for your help~ | 09:02 |
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| n4nd0 | no problem, just ask around here if you have any problem so we can try to help you ;) | 09:05 |
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| blackburn | hpsoar: it seems we've got some misunderstanding at pull request point | 09:27 |
| blackburn | have you subscribed to the mailing list? | 09:27 |
| hpsoar | yes | 09:27 |
| blackburn | hpsoar: I clarified it a little, we intent that students could help with some improvements | 09:28 |
| blackburn | but not some test thing | 09:28 |
| hpsoar | doesn't the project require a pull request test to make sure that the version control can work correctly | 09:28 |
| hpsoar | I know that, I have already viewed the ideas proposed | 09:29 |
| blackburn | no, github works well anyway | 09:30 |
| blackburn | we suggest students to make real pull requests | 09:30 |
| blackburn | that's what I mean | 09:30 |
| blackburn | hpsoar: according to things you said before (I checked logs) - contact mentor(s) of idea(s) you are interested with | 09:34 |
| hpsoar | oh, sorry | 09:35 |
| blackburn | no problem | 09:35 |
| hpsoar | I haved already pull the source to my machine, ok, thank you | 09:35 |
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| sonne|work | blackburn: thx for the clarification email | 09:44 |
| blackburn | sonne|work: lol | 09:44 |
| sonne|work | btw - I think I know what is wrong with tests | 09:44 |
| blackburn | what? | 09:44 |
| sonne|work | serialization seems to not work | 09:44 |
| blackburn | oh awesome | 09:44 |
| sonne|work | no idea why though | 09:44 |
| sonne|work | pickle.dumps()/loads() work... | 09:44 |
| blackburn | sonne|work: I am tending to abandon release right now | 09:45 |
| sonne|work | so all tests fail that serialize shogun objects | 09:45 |
| sonne|work | ? | 09:45 |
| blackburn | well we may not release this time I mean | 09:45 |
| sonne|work | if I figure out what is wrong - I think we are in good shape for a release | 09:45 |
| blackburn | ok, I don't mind release but I mean I hardly can find much time to fix some serialization errors | 09:46 |
| n4nd0 | if I can help with sth guys, let me know please | 09:47 |
| sonne|work | blackburn: it is clear that I have to figure out what is wrong... - well I can try | 09:48 |
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| blackburn | sonne|work: not so clear if you have no time for that :) | 09:49 |
| flxb | Hello! | 09:49 |
| flxb | Is it possible to serialize a GMNPSVM classifier? And if so, how do you do it in python_modular? | 09:49 |
| sonne|work | n4nd0: it is not so easy - I think I have to do it this time | 09:50 |
| sonne|work | pickle.dump(classifier) | 09:50 |
| blackburn | yes it is possible | 09:50 |
| n4nd0 | sonne|work: ok | 09:50 |
| blackburn | n4nd0: what about multiclassmachine? | 09:55 |
| blackburn | I was lazy to implement OvO training | 09:55 |
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| n4nd0 | blackburn: do you mean to prepare an interface similar to LinearMachine or the like for multiclass? | 09:57 |
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| blackburn | wrong click lol | 09:58 |
| n4nd0 | blackburn: I don't know if you get it before | 09:58 |
| n4nd0 | blackburn: do you mean to prepare an interface similar to LinearMachine or the like for multiclass? | 09:58 |
| blackburn | n4nd0: check shogun/machine/MulticlassMachine.cpp | 09:58 |
| blackburn | n4nd0: there is a code training machines with OvR scheme | 09:58 |
| blackburn | so approach is similar | 09:59 |
| blackburn | but you need to subset features instance: i.e. select only feature vectors that belongs to 2 classes you dichotomize right now | 09:59 |
| blackburn | LibSVMMultiClass has some that kind of code | 10:00 |
| blackburn | and MultiClassSVM class has apply for that scheme | 10:00 |
| n4nd0 | blackburn: 0vR is the same as one vs. all? | 10:01 |
| blackburn | yeah | 10:01 |
| blackburn | I used to say OvR cause 'all' sounds like you try to construct hyperplane between set X and set X+Y - this makes no sense :) | 10:02 |
| n4nd0 | haha ok, I see your porint One vs. Rest | 10:02 |
| n4nd0 | point* | 10:02 |
| n4nd0 | so this 0v0 scheme is implemented in LibSVM but not in shogun? | 10:04 |
| blackburn | I want to port all multiclass things into multiclass folder | 10:05 |
| blackburn | GMNPSVM in fact | 10:06 |
| blackburn | and LibSVMMulticlass as well | 10:06 |
| blackburn | let me check how it trains | 10:06 |
| blackburn | sonne|work: about labels I postpone it to some day after release | 10:07 |
| blackburn | binarylabels, multiclasslabels, probabilisticlabels, etc | 10:07 |
| blackburn | n4nd0: ok multiclass libsvm trains 1-vs-1 | 10:10 |
| n4nd0 | n4nd0: all right, and that's already in shogun | 10:11 |
| blackburn | yes, but it should change its base | 10:11 |
| n4nd0 | blackburn: how should it be? | 10:12 |
| blackburn | I introduced MulticlassMachine | 10:12 |
| blackburn | probably MulticlassSVM should be derived from KernelMulticlassMachine | 10:12 |
| blackburn | and all these things should -> multiclass instead of shogun/classifier/svm | 10:13 |
| n4nd0 | blackburn: got it | 10:14 |
| blackburn | n4nd0: but this time you probably better implement that generic thing | 10:14 |
| blackburn | in multiclassmachine | 10:14 |
| blackburn | do you know how 1-vs-1 works? | 10:14 |
| n4nd0 | blackburn: what is that generic thing? | 10:15 |
| n4nd0 | blackburn: no, I have just heard of 1vsR | 10:15 |
| blackburn | both LinearMulticlassMachine and KernelMulticlassMachine can use any classifier | 10:15 |
| blackburn | linear or kernel based accordingly | 10:15 |
| blackburn | i.e. you may | 10:16 |
| blackburn | LinearMulticlassMachine(ONE_VS_REST_STRATEGY, QDA(), train_features, train_labels) | 10:16 |
| blackburn | ah yes QDA is not linera | 10:16 |
| blackburn | then LDA() | 10:16 |
| n4nd0 | :) | 10:16 |
| blackburn | so when you train it | 10:17 |
| blackburn | it constructs 1-vs-rest linear classifiers using provided lda | 10:17 |
| blackburn | and then classifies using these constructed hyperplanes :) | 10:17 |
| n4nd0 | I think I get the idea | 10:18 |
| n4nd0 | I guess this 1vs1 is another strategy of doing multiclass instead os 1vsR | 10:18 |
| blackburn | yes | 10:19 |
| blackburn | take a look no train_one_vs_rest | 10:19 |
| blackburn | imagine you've got labels [0,0,0,1,1,1,2,2,2] | 10:19 |
| blackburn | it constructs labels | 10:19 |
| blackburn | [-1,-1,-1,+1,+1,+1,+1,+1,+1] | 10:19 |
| blackburn | [+1,+1,+1,-1,-1,-1,+1,+1,+1] | 10:19 |
| blackburn | [+1,+1,+1,+1,+1,+1,-1,-1,-1] | 10:20 |
| n4nd0 | I see | 10:20 |
| blackburn | and trains provided machine using ^ | 10:20 |
| blackburn | so 3 planes separating each class from rest | 10:20 |
| blackburn | train_one_vs_one should be a little different | 10:20 |
| blackburn | imagine again you've got labels [0,0,0,1,1,1,2,2,2] | 10:21 |
| blackburn | [-1,-1,-1,+1,+1,+1,0,0,0] | 10:21 |
| blackburn | [-1,-1,-1,0,0,0,+1,+1,+1] | 10:21 |
| blackburn | [0,0,0,-1,-1,-1,+1,+1,+1] | 10:22 |
| blackburn | we should exclude vectors with 0 label | 10:22 |
| blackburn | they are not considered by machine at all | 10:22 |
| blackburn | got it? | 10:22 |
| n4nd0 | yes | 10:22 |
| blackburn | this can be done with subsetting | 10:23 |
| n4nd0 | in a general case 1vs1 generates more separating hyperplanes right? | 10:23 |
| blackburn | if there are K classes | 10:24 |
| blackburn | it constructs K*(K-1)/2 | 10:24 |
| n4nd0 | while the other always does K | 10:24 |
| blackburn | OvR constructs K | 10:25 |
| blackburn | yes | 10:25 |
| n4nd0 | good | 10:25 |
| n4nd0 | so the idea is first to move all the stuff to multiclass | 10:25 |
| n4nd0 | and later implement this one vs. one | 10:25 |
| blackburn | no | 10:26 |
| blackburn | just implement one vs one | 10:26 |
| blackburn | in case Soeren would manage to repair serialization | 10:27 |
| blackburn | we release, so no need to do such intrusive changes | 10:27 |
| n4nd0 | ok | 10:27 |
| blackburn | n4nd0: btw there should be for i=1:K for j=i+1:K | 10:28 |
| blackburn | little hint :) | 10:29 |
| blackburn | i.e. no need to construct classifiers between both (0,1) and (1,0) | 10:29 |
| blackburn | they are equal up to sign | 10:29 |
| n4nd0 | :) | 10:29 |
| n4nd0 | good you said, I might have repeated stuff | 10:30 |
| blackburn | for i = 1 : K | 10:30 |
| blackburn | for j = i + 1 : K | 10:30 |
| n4nd0 | so simplying the idea is to add two methods in MulticlassMachine | 10:31 |
| blackburn | mark labels == i as -1 | 10:31 |
| blackburn | mark labels == j as +1 | 10:31 |
| blackburn | subset feature vectors that belong to i and j classes (exclude others) | 10:31 |
| blackburn | train classifier, store it | 10:31 |
| blackburn | that's THE MARVELLOUS algorithm ;) | 10:31 |
| n4nd0 | :) | 10:32 |
| blackburn | n4nd0: yes, train_one_vs_one | 10:32 |
| blackburn | apply_one_vs_one | 10:32 |
| n4nd0 | ok | 10:32 |
| blackburn | apply_one_vs_one is implemented in MultiClassSVM | 10:32 |
| blackburn | just copy it | 10:32 |
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| n4nd0 | blackburn: ok, it doesn't look like much work then (one never knows though) | 10:33 |
| blackburn | n4nd0: yes it is pretty simpel | 10:33 |
| blackburn | :) | 10:33 |
| blackburn | I did not implement it cause I am having some research on task with 43 classes | 10:33 |
| n4nd0 | blackburn: I will try to do it and test it, comparing it to another example using 1vsR and hope to get same results | 10:33 |
| blackburn | so damn hard to train 903 classifiers | 10:33 |
| blackburn | applying with libsvmmulticlass takes ONE HOUR | 10:34 |
| blackburn | thanks to wiking we've got a way to make it linear | 10:34 |
| blackburn | now it takes 100s | 10:34 |
| blackburn | :D | 10:34 |
| blackburn | to train* | 10:34 |
| blackburn | and 4s to apply | 10:34 |
| n4nd0 | cool | 10:35 |
| blackburn | n4nd0: ok I probably should quit irc cause it is pretty distracting and I can't start working :) | 10:44 |
| blackburn | to get fired during this crazy pre-gsoc is not my intention :D | 10:44 |
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| blackburn | ah nevermind I'll just stop staring | 10:46 |
| blackburn | :D | 10:46 |
| blackburn | highlight me if needed | 10:47 |
| n4nd0 | ok, will do that | 10:50 |
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| harshit_ | is there any function in Shogun or in any c++ library to check whether matrix is sparse or not | 12:54 |
| harshit_ | ? | 12:54 |
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| hpsoar | why the 1.2.0 version can not configure with cmdline_modular? | 14:20 |
| blackburn | cmdline_modular? there is no such interface | 14:21 |
| wiking | yo | 14:22 |
| blackburn | hey | 14:22 |
| wiking | wazza man | 14:26 |
| wiking | finally i'm work mode again | 14:26 |
| wiking | instead of writing paper mode | 14:26 |
| n4nd0 | wiking: what was your paper about? | 14:27 |
| wiking | n4nd0: image similarity measures | 14:27 |
| wiking | basically extending my prev algorithms on computer vision for getting better accuracy | 14:27 |
| wiking | nothing fancy :| | 14:27 |
| wiking | it's one of those need-to-publish papers in my opinion | 14:28 |
| n4nd0 | wiking: aham hope you get a good publication anyway :) | 14:28 |
| wiking | heheh let's hope so | 14:28 |
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| blackburn | wiking: n4nd0 guys last year we had some troubles with git, I just noticed you have no troubles at all :) | 14:43 |
| n4nd0 | :) | 14:45 |
| n4nd0 | let's hope it continues like this, without problems | 14:45 |
| wiking | blackburn: ? | 14:49 |
| blackburn | wiking: well we had some issues with branching etc, we all were new to git :D | 14:49 |
| n4nd0 | svn before? | 14:50 |
| wiking | hahahah ah ok | 14:51 |
| wiking | :) | 14:51 |
| blackburn | actually there are some pitfalls | 14:52 |
| blackburn | e.g. you may see Merge branch ... " commits | 14:52 |
| blackburn | sometimes | 14:52 |
| blackburn | they can be avoided with proper rebasing | 14:52 |
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| wiking | heheh yeah rebasing is gooood | 15:51 |
| wiking | blackburn: branching and merging is like amaaaazing compared to svn ...! | 16:04 |
| blackburn | you tend to make words long today ;) | 16:05 |
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| blackburn | wiking: one more wiking and you all will break the ice and sink | 16:08 |
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| blackburn | oh no | 16:08 |
| blackburn | one sinked | 16:08 |
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| blackburn | another one bites the dust | 16:09 |
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| blackburn | and another one comes | 16:09 |
| wiking_ | hahahah | 16:09 |
| wiking_ | oh sorry to be proper.... aaaaaahhahahaa | 16:09 |
| blackburn | ;) | 16:09 |
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| CIA-64 | shogun: Soeren Sonnenburg master * r5efddaa / src/shogun/evaluation/CrossValidation.cpp : fix spelling mistake -> warning - http://git.io/xTbBTg | 20:10 |
| CIA-64 | shogun: Soeren Sonnenburg master * r7bb576d / (2 files in 2 dirs): extract mahalanobis description and don't print anything in example - http://git.io/sC6bKg | 20:10 |
| CIA-64 | shogun: Soeren Sonnenburg master * r7329de6 / testsuite/python_modular/tester.py : compare pickled version of SGObject instances not just ptrs - http://git.io/OS3iVg | 20:10 |
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| CIA-64 | shogun: Soeren Sonnenburg master * rd4bb942 / applications/vw/Makefile : fix vw makefile - http://git.io/Bw5r8A | 21:02 |
| CIA-64 | shogun: Soeren Sonnenburg master * reca0d2d / (4 files in 4 dirs): | 21:02 |
| CIA-64 | shogun: fix a couple of issues like in applications | 21:02 |
| CIA-64 | shogun: most notably the SVM object is gone and replaced by KernelMachine - http://git.io/XTq-mQ | 21:02 |
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| PhilTillet | Hello | 21:26 |
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| @sonney2k | PhilTillet, hi | 21:32 |
| blackburn | hey guys | 21:32 |
| blackburn | sonney2k: did you manage to fix tester? | 21:32 |
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| blackburn | bam | 21:32 |
| blackburn | another one bites the dust | 21:32 |
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| blackburn | sonney2k: I mean I have seen you fixed something | 21:34 |
| CIA-64 | shogun: Soeren Sonnenburg master * rf081ae0 / testsuite/python_modular/tester.py : only import modshogun - http://git.io/dkMc5Q | 21:34 |
| CIA-64 | shogun: Soeren Sonnenburg master * raba8078 / (4 files): comment print functions in examples - http://git.io/mnNbyw | 21:34 |
| blackburn | and again | 21:35 |
| @sonney2k | blackburn, do you know whether heiko will be around? | 21:35 |
| blackburn | sonney2k: he said this week is pretty hard | 21:35 |
| -!- in3xes [~in3xes@210.212.58.168] has quit [Ping timeout: 240 seconds] | 21:35 | |
| blackburn | so probably next week only | 21:35 |
| @sonney2k | I think there is some breakage in this data lock stuff / at least kernels etc are no longer set in gmnpsvm after de-serialization | 21:36 |
| blackburn | sonney2k: row subset thing? | 21:36 |
| @sonney2k | no | 21:36 |
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| @sonney2k | maybe related - I don't know for sure | 21:36 |
| blackburn | sonney2k: actually I asked him to fix this parameters thing | 21:36 |
| @sonney2k | basically all applications are broken now | 21:37 |
| @sonney2k | but tester.py -t 1e-10 runs many examples fine now | 21:37 |
| blackburn | sonney2k: I probably know the error - we need to add new field to parameter map | 21:37 |
| @sonney2k | so some improvements but not down to 0 errors | 21:38 |
| blackburn | I see | 21:38 |
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| blackburn | sonney2k: I'll try to fix it but tomorrow or later | 21:38 |
| blackburn | have to go back to studies again damn | 21:38 |
| blackburn | sonney2k: time to study signal processing! see you ;) | 21:40 |
| n4nd0 | blackburn: signal processing, cool stuff :P | 21:40 |
| blackburn | n4nd0: I am not a big fan but you are probably right ;) | 21:41 |
| blackburn | n4nd0: so see you too :D | 21:41 |
| blackburn | bye | 21:41 |
| n4nd0 | :) bye! | 21:41 |
| n4nd0 | sonney2k: nico answered today, you were right :) | 21:42 |
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| PhilTillet | Nobody's insomniac today :D | 23:13 |
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| n4nd0 | PhilTillet: there's always someone :P | 23:17 |
| PhilTillet | Haha :D | 23:18 |
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| n4nd0 | but time to go now | 23:31 |
| n4nd0 | good night guys | 23:31 |
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| --- Log closed Tue Mar 20 00:00:19 2012 | ||
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