| --- Log opened Tue Mar 12 00:00:48 2019 | ||
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| theartful | I would like to work on this issue https://github.com/shogun-toolbox/shogun/issues/4482, but i want to know more about this "plugin framework" | 11:15 |
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| HeikoS | wiking yoyo | 14:42 |
| HeikoS | gf712 | 14:42 |
| gf712 | HeikoS hey | 14:50 |
| gf712 | How are you? | 14:50 |
| HeikoS | good thanks | 14:50 |
| HeikoS | and you? | 14:50 |
| HeikoS | gf712 just commented on this gradient thing | 14:51 |
| HeikoS | is that what you had in mind? | 14:51 |
| gf712 | yes something along those lines would be cool | 14:53 |
| gf712 | then it's a very hands-off approach | 14:53 |
| gf712 | just need to implement a function for gradient | 14:53 |
| gf712 | HeikoS: then the gradient updating is automatically done from a base class and that will result in less code in the implementations | 14:54 |
| gf712 | i.e. the derived classes | 14:54 |
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| HeikoS | gf712 what do you mean with the last sentence? | 14:58 |
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| gf712 | HeikoS: some base class controls the gradient calculations, like CSGObject instantiates AUTO | 15:02 |
| HeikoS | not sure I understand what you mean and what it implies :) | 15:02 |
| gf712 | HeikoS: it means that the derived classes don't need to calculate the gradient right? They just have some sort of callback that calls base class function that runs the gradient function | 15:03 |
| HeikoS | ah | 15:03 |
| HeikoS | yes | 15:03 |
| HeikoS | exactly | 15:03 |
| gf712 | that's what I had in mind when I suggested | 15:03 |
| HeikoS | sorry I was lost | 15:04 |
| gf712 | ah ok! :D | 15:04 |
| HeikoS | I think it is a good idea | 15:04 |
| HeikoS | what we need are two things | 15:04 |
| HeikoS | 1. explicit gradient computations | 15:04 |
| HeikoS | 2. for the model selection framework we need sometimes to differentiate all parameters wrt something | 15:04 |
| HeikoS | like in GPs | 15:04 |
| HeikoS | we do gradient descent on the marginal likelihood | 15:05 |
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| HeikoS | so we want all hyperparameters of that | 15:05 |
| HeikoS | like kernel bandwidth | 15:05 |
| HeikoS | and maybe noise level | 15:05 |
| HeikoS | and then we want to optimize all of them at once | 15:05 |
| gf712 | OK, that might make it a bit harder to make a nice API | 15:05 |
| HeikoS | kind of chain rule | 15:05 |
| gf712 | but I am sure with a few iterations we'll find something... | 15:06 |
| HeikoS | check CGradientModelSelection | 15:06 |
| HeikoS | that is how it is done atm | 15:06 |
| gf712 | so the gradient is calculated for each param in this loop for (index_t i=0; i<parameter_dictionary->get_num_elements(); i++) ? | 15:08 |
| gf712 | and then inside derivative=gradient->get_element(gradient_node->key); | 15:08 |
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| HeikoS | yes I think gf712 | 15:10 |
| gf712 | maybe Lefteris can check how we did it with AUTO and I can work with him on it? | 15:11 |
| gf712 | because he probably knows about the gradient stuff better than I do | 15:11 |
| gf712 | and I can do the callback stuff | 15:12 |
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| HeikoS | gf712 yes good idea | 15:13 |
| HeikoS | I think we would need some fundamentals to be implemented, similar to the auto param | 15:13 |
| HeikoS | and then he could use that to refacor things | 15:13 |
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| Lefteris | HeikoS, hello! About the kernels examples what do you mean by "Can you mark left and right hand side parameters as read only" | 15:24 |
| HeikoS | Lefteris hi | 15:24 |
| HeikoS | let me find the link | 15:25 |
| Lefteris | thank you | 15:25 |
| HeikoS | gf712 can we merge https://github.com/shogun-toolbox/shogun/pull/4549 | 15:26 |
| HeikoS | ? | 15:26 |
| HeikoS | Lefteris that is the link | 15:26 |
| Lefteris | Thank you | 15:26 |
| HeikoS | Lefteris it is not merged yet | 15:29 |
| HeikoS | Lefteris but what gf712 has done for the kernel rhs/lhs is what I meant | 15:29 |
| gf712 | HeikoS I think so! | 15:29 |
| Lefteris | Yes, ok | 15:29 |
| gf712 | HeikoS the errors are unrelated | 15:30 |
| HeikoS | merged | 15:30 |
| HeikoS | Lefteris changing this might have some tail | 15:32 |
| HeikoS | if it breaks lots of other things, I suggest you just change the distance | 15:32 |
| Lefteris | ok | 15:32 |
| HeikoS | from distance("EuclideanDistance", lhs=... rhs=...) | 15:32 |
| HeikoS | to | 15:32 |
| HeikoS | d = distance("EurclideanDistance") | 15:32 |
| HeikoS | d.init(lhs, rhs) | 15:33 |
| HeikoS | i.e. pretend the property was readonly and you use "init" | 15:33 |
| HeikoS | and then we can do the readonly marking in another PR | 15:33 |
| HeikoS | Lefteris btw also gf712 and me just had some discussion about gradients | 15:33 |
| HeikoS | we can update you in the stammtisch meeetin gin half an hour | 15:33 |
| Lefteris | ok, great! | 15:33 |
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| HeikoS | wiking will you host the stammtisch? | 15:50 |
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| feriglegarc | HeikoS: hey man. I can't join via voice today (at a meeting) but will idle around here | 16:01 |
| @HeikoS | ok | 16:02 |
| @HeikoS | feriglegarc who is it? :) | 16:02 |
| feriglegarc | fernando | 16:02 |
| @HeikoS | i see | 16:02 |
| @HeikoS | ok | 16:02 |
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| @HeikoS | stammtisch hangout | 16:03 |
| @HeikoS | https://hangouts.google.com/call/SBx9uNZfpzEm6vvJ3nw7AEEI | 16:03 |
| @HeikoS | gf712 joining? | 16:03 |
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| cruel | SO i am facing a problem in | 17:12 |
| cruel | -- Building for: Visual Studio 15 2017 CMake Error at C:/Program Files/CMake/share/cmake-3.13/Modules/CMakeDetermineSys tem.cmake:174 (file): file failed to open for writing (No such file or directory): C:/Users/nEW u/Desktop/shogun_stable/shogun/build/CMakeFiles/CMakeOutput.log Call Stack (most recent call first): CMakeLists.txt:27 (project) CMake Error: Could not open file for write in copy operation C:/Users/nEW u/Desk top/shogun_ | 17:12 |
| cruel | can you plz help me i am stuck here | 17:12 |
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| --- Log closed Wed Mar 13 00:00:49 2019 | ||
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