| --- Log opened Wed Dec 12 00:00:38 2012 | ||
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| shogun-buildbot | build #172 of nightly_all is complete: Failure [failed compile] Build details are at http://www.shogun-toolbox.org/buildbot/builders/nightly_all/builds/172 | 03:08 |
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| shogun-buildbot | build #215 of nightly_default is complete: Failure [failed compile] Build details are at http://www.shogun-toolbox.org/buildbot/builders/nightly_default/builds/215 | 03:14 |
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| n4nd0 | wiking: hello hello | 20:55 |
| wiking | n4nd0: hey | 20:56 |
| wiking | so here's a question | 20:57 |
| wiking | ok i'll put it in latex format just a sec | 20:57 |
| n4nd0 | ok | 20:57 |
| wiking | so it's the usual struct svm: \min_{w,\xi_i >= 0} \frac{1}{2} ||w||^2_2 + C \sum_{n} \xi_n | 21:00 |
| wiking | with s.t. | 21:00 |
| wiking | \forall n \in pos\ w*\Psi(x_n, y_n) >= 1 - \xi_n | 21:00 |
| wiking | \forall n \in neg \forall y\ w*\Psi(x_n, y) =< -1 + \xi_n | 21:00 |
| wiking | {pos} = positive examples | 21:01 |
| wiking | {neg} = negatives | 21:01 |
| n4nd0 | ok | 21:01 |
| wiking | how would u construct this problem with PrimalMosek? :) | 21:02 |
| n4nd0 | mmm let's see | 21:03 |
| n4nd0 | wiking: you don't want to use the loss anywhere? | 21:07 |
| wiking | noup | 21:08 |
| n4nd0 | ok | 21:09 |
| n4nd0 | so right now what the Primal does looks similar to the positive constraints | 21:10 |
| wiking | mmm isn't it w* \delta\psi(...) | 21:11 |
| wiking | ? | 21:11 |
| wiking | where \delta psi is \psi(...) - \psi(...) | 21:11 |
| n4nd0 | oh yeah sorry | 21:12 |
| wiking | prediction - ground truth | 21:12 |
| n4nd0 | I read \Psi like that directly, sorry | 21:12 |
| n4nd0 | mmmm | 21:13 |
| n4nd0 | so it looks to me like that problem cannot be solved with it right now | 21:13 |
| n4nd0 | some things should be added / modified | 21:13 |
| n4nd0 | what I mean is that I don't think there is a way to do it directly with the current implementation, like changing some input or parameter | 21:15 |
| wiking | yep | 21:17 |
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| wiking | lol | 21:50 |
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| --- Log closed Thu Dec 13 00:00:38 2012 | ||
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