| --- Log opened Mon Jul 23 00:00:20 2018 | ||
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4373 synchronized by shubham808 | 11:29 |
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| travis-ci | it's Shubham Shukla's turn to pay the next round of drinks for the massacre he caused in shubham808/shogun: https://travis-ci.org/shubham808/shogun/builds/407058299 | 12:08 |
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| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4381 synchronized by karlnapf | 12:32 |
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| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4381 synchronized by karlnapf | 12:52 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4381 merged by karlnapf | 13:02 |
| @sukey | [https://github.com/shogun-toolbox/shogun] New commit https://github.com/shogun-toolbox/shogun/commit/1be1dbbf6fdce20e73901d205cee253f2d4cd873 by karlnapf | 13:02 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4382 karlnapf added label: "good first issue" | 13:08 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4382 opened by karlnapf | 13:08 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4382 karlnapf added label: "meta examples" | 13:08 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4382 karlnapf added label: "bugfixing" | 13:08 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4382 karlnapf added label: "BUG" | 13:08 |
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| wuwei[m] | HeikoS: hi | 13:55 |
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| travis-ci | it's Heiko Strathmann's turn to pay the next round of drinks for the massacre he caused in shogun-toolbox/shogun: https://travis-ci.org/shogun-toolbox/shogun/builds/407094344 | 13:58 |
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| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4380 synchronized by vinx13 | 14:35 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4383 opened by karlnapf | 14:51 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4383 karlnapf added label: "good first issue" | 14:51 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4383 karlnapf added label: "Cleanups" | 14:51 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Issue https://github.com/shogun-toolbox/shogun/issues/4383 karlnapf added label: "testing" | 14:51 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4373 synchronized by shubham808 | 15:19 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4373 synchronized by shubham808 | 16:07 |
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| travis-ci | it's Shubham Shukla's turn to pay the next round of drinks for the massacre he caused in shubham808/shogun: https://travis-ci.org/shubham808/shogun/builds/407166849 | 16:26 |
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| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4384 opened by karlnapf | 16:46 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4384 | 16:46 |
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| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4380 synchronized by vinx13 | 18:34 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4380 synchronized by vinx13 | 18:38 |
| @HeikoS | lisitsyn: jojo | 18:57 |
| @HeikoS | lisitsyn: random q | 18:58 |
| @HeikoS | shall shogun algorithms that require centered data center it themselves | 18:58 |
| @HeikoS | or shall they assume that it is centered | 18:58 |
| lisitsyn | HeikoS: hey | 18:58 |
| @HeikoS | there are a lot of cases | 18:58 |
| @HeikoS | where things are centered by the algorithm | 18:58 |
| @HeikoS | and then tehre are other cases, where this is not done | 18:59 |
| @HeikoS | and it is kind of up to the user to ensure this | 18:59 |
| @HeikoS | (no check) | 18:59 |
| lisitsyn | that's interesting | 18:59 |
| @HeikoS | it is quite redundant to center in every algo | 18:59 |
| @HeikoS | viktor and I also discussed sometrhign like | 18:59 |
| lisitsyn | centering is sample-dependent | 18:59 |
| @HeikoS | every algorithm "knows" whether it assumes centered data or not | 18:59 |
| @HeikoS | lisitsyn: sure I mean it is alwazs optional | 18:59 |
| lisitsyn | auto-centering is like overfitting sometimes | 18:59 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4380 synchronized by vinx13 | 19:00 |
| @HeikoS | lisitsyn: yeah sure | 19:00 |
| @HeikoS | but I am wondering what to do API wise | 19:00 |
| @HeikoS | lisitsyn: it is optional | 19:00 |
| @HeikoS | but shall the algorithms offer it? | 19:00 |
| @HeikoS | alternatively we could do this in a base class | 19:01 |
| @HeikoS | like in CMachine::train | 19:01 |
| lisitsyn | I am not sure, I'd expect user to do that | 19:01 |
| @HeikoS | if (expects_centered_data) { center_data() } | 19:01 |
| @HeikoS | there is also computational issues | 19:01 |
| @HeikoS | batch mode vs iterative mode | 19:01 |
| @HeikoS | like say covariance matrix | 19:01 |
| @HeikoS | can be done fast if I have a matrix | 19:02 |
| @HeikoS | X * X^T | 19:02 |
| @HeikoS | but then I need to store the matrix | 19:02 |
| @HeikoS | whereas if I center on the fly | 19:02 |
| @HeikoS | I dont need to | 19:02 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4380 synchronized by vinx13 | 19:02 |
| @HeikoS | that is also slower | 19:02 |
| @HeikoS | but in some cases (subsets active), we need to do that in order to avoid copying thigns around) | 19:02 |
| @HeikoS | giving it all to the user is also fine | 19:02 |
| @HeikoS | lisitsyn: more thoughts on that? | 19:03 |
| @HeikoS | we can also force the user | 19:03 |
| @HeikoS | like | 19:03 |
| @HeikoS | she needs to set a flag | 19:03 |
| lisitsyn | I am not sure how can you check if data is centered | 19:04 |
| @HeikoS | model.put("YES_I_CENTERED_THE_DATA", True) | 19:04 |
| @HeikoS | otherwise error in .train() | 19:04 |
| @HeikoS | lisitsyn: | 19:04 |
| lisitsyn | HeikoS: heh well | 19:05 |
| @HeikoS | lisitsyn: I also tend to pass this to the user | 19:06 |
| @HeikoS | via pipeline or so | 19:06 |
| lisitsyn | yeah | 19:06 |
| @HeikoS | lisitsyn: but force the user to acknowledge? | 19:07 |
| lisitsyn | yeah somehow | 19:08 |
| @HeikoS | lisitsyn: one could also allow the user to enable enforcements | 19:08 |
| @HeikoS | i.e. | 19:08 |
| @HeikoS | m.put("pls enforce", True) | 19:08 |
| lisitsyn | well some checklist would be funny | 19:08 |
| @HeikoS | and if that is true | 19:08 |
| @HeikoS | the model checks | 19:08 |
| lisitsyn | I have never seen that | 19:08 |
| lisitsyn | but why not | 19:08 |
| @HeikoS | okok | 19:08 |
| @HeikoS | future | 19:08 |
| @HeikoS | for now | 19:08 |
| lisitsyn | this could probably be the best way | 19:08 |
| @HeikoS | user has to be careful | 19:08 |
| @HeikoS | makes the algorithsm easier as well | 19:09 |
| @HeikoS | can remove all that centering code | 19:09 |
| @sukey | [https://github.com/shogun-toolbox/shogun] Pull Request https://github.com/shogun-toolbox/shogun/pull/4377 synchronized by vinx13 | 19:09 |
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| --- Log closed Tue Jul 24 00:00:22 2018 | ||
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