Re: [Scikit-learn-general] GSoC 2013 : Multinomial Logistic Regression

2013-05-01 Thread Vlad Niculae
Hi Mohit I believe this proposal is very welcome. Just pointing out that it's not about removing the dependency on liblinear: we will still depend on it for the LinearSVC and its implementation of binary logistic regression. It's just that we are completely missing a true multinomial logistic

[Scikit-learn-general] (GSOC) Would scikit consider expanding to add reinforcement learning?

2013-05-01 Thread Issam
Hi everyone, I'm wondering if scikit would wish to add reinforcement learning (rl) modules (its basically machine learning). Since I'm implementing some of its algorithms, it would be great if we can share a repository to test different rl algorithms as a 'black box' to different reinforcement

Re: [Scikit-learn-general] (GSOC) Would scikit consider expanding to add reinforcement learning?

2013-05-01 Thread Andreas Mueller
Hi Issam. I don't think adding RL is a good idea, as it requires a whole different API. Also, we try to focus on the current methods and provide an interface, working up to a 1.0 release in the not-so-far-future. Have you looked at PyBrain? I think the already implement some RL algorithms.

Re: [Scikit-learn-general] GSoC 2013 : Multinomial Logistic Regression

2013-05-01 Thread Andreas Mueller
On 05/01/2013 10:50 AM, Vlad Niculae wrote: Hi Mohit I believe this proposal is very welcome. Just pointing out that it's not about removing the dependency on liblinear: we will still depend on it for the LinearSVC and its implementation of binary logistic regression. It's just that we are

Re: [Scikit-learn-general] (GSOC) Would scikit consider expanding to add reinforcement learning?

2013-05-01 Thread Issam
Hi Andy, That is true, RL requires a whole new API, just didn't find PyBrain friendly enough :). Thanks, --Issam On 5/1/2013 12:56 PM, Andreas Mueller wrote: Hi Issam. I don't think adding RL is a good idea, as it requires a whole different API. Also, we try to focus on the current methods

Re: [Scikit-learn-general] GSoC 2013 : Multinomial Logistic Regression

2013-05-01 Thread Mathieu Blondel
My library for large-scale linear classification / regression, lightning, already supports multiclass logistic regression (by SGD and by coordinate descent). It also includes many other goodies, including my upcoming paper on sparse multiclass classification. For all my Cython code, I used a

Re: [Scikit-learn-general] GSoC 2013 : Multinomial Logistic Regression

2013-05-01 Thread Alexandre Gramfort
My library for large-scale linear classification / regression, lightning, already supports multiclass logistic regression (by SGD and by coordinate descent). It also includes many other goodies, including my upcoming paper on sparse multiclass classification. For all my Cython code, I used a

Re: [Scikit-learn-general] 'positive' option in LassoCV?

2013-05-01 Thread Alexandre Gramfort
hi, Is there a reason why this option could not be included in LassoCV? lack of time :) Apparently someone else had the same question: http://stackoverflow.com/questions/14324976/what-non-negative-linear-models-are-supported-planned-in-scikit-learn I hope it can be included in a future

[Scikit-learn-general] 'positive' option in LassoCV?

2013-05-01 Thread James Jensen
I'm looking to do regularized regression with a non-negativity constraint. Scikit-learn's Lasso method has a 'positive' option that applies this constraint, so it seems like a good tool for the job. At the same time, the automatic tuning of the regularization parameter that is offered by

[Scikit-learn-general] Build infrastructure and pep8

2013-05-01 Thread Olivier Grisel
Hi all, I spend a couple of hours fixing the build infrastructures: - the travis CI mldata failures should be fixed by: https://github.com/scikit-learn/scikit-learn/commit/0859653e096e7cc48fbdb1e56564482c92efc120 https://github.com/scikit-learn/scikit-learn/issues/1417 - the jenkins build was

Re: [Scikit-learn-general] Build infrastructure and pep8

2013-05-01 Thread Lars Buitinck
2013/5/1 Olivier Grisel olivier.gri...@ensta.org: I spend a couple of hours fixing the build infrastructures: - the travis CI mldata failures should be fixed by: https://github.com/scikit-learn/scikit-learn/commit/0859653e096e7cc48fbdb1e56564482c92efc120

Re: [Scikit-learn-general] Build infrastructure and pep8

2013-05-01 Thread Olivier Grisel
2013/5/1 Lars Buitinck l.j.buiti...@uva.nl: Here is the pep8 violations report: https://jenkins.shiningpanda-ci.com/scikit-learn/job/python-2.7-numpy-1.6.2-scipy-0.10.1/violations/ A lot of this is joblib and six, though. Can we turn off pep8 reporting for sklearn/externals? I like to keep

Re: [Scikit-learn-general] Build infrastructure and pep8

2013-05-01 Thread Gael Varoquaux
On Wed, May 01, 2013 at 06:19:34PM +0200, Olivier Grisel wrote: I spend a couple of hours fixing the build infrastructures: Wow! Thank you so much. These are well-spent hours. G -- Introducing AppDynamics Lite, a free

Re: [Scikit-learn-general] Build infrastructure and pep8

2013-05-01 Thread Gilles Louppe
Thanks for solving the Travis bug :) On 1 May 2013 21:15, Gael Varoquaux gael.varoqu...@normalesup.org wrote: On Wed, May 01, 2013 at 06:19:34PM +0200, Olivier Grisel wrote: I spend a couple of hours fixing the build infrastructures: Wow! Thank you so much. These are well-spent hours. G