Re: [Scikit-learn-general] cross_val_score crashes python every time

2014-10-07 Thread c TAKES
Gael - I tried separating out the lambda function into a standalone function. Unfortunately no luck - same result :(. Olivier - I'm using the default, which is n_jobs=1, so hopefully that shouldn't be a problem. The reason I'm using the threads is that I want to be able to train models using a v

[Scikit-learn-general] cross_val_score crashes python every time

2014-10-03 Thread c TAKES
I'm trying to use cross_val_score inside a lambda function to take full advantage of my processors - especially because previously I was having problems when setting cross_val_score's built in n_jobs > 1. I have successfully done something similar before, though in a little bit different way, so I

Re: [Scikit-learn-general] "MemoryError() in 'sklearn.tree._tree.Tree._resize' ignored"

2014-09-22 Thread c TAKES
C\redist\Debug_NonRedist\x86\Microsoft.VC90.DebugCRT\msvcr90d.dll" "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\redist\Debug_NonRedist\amd64\Microsoft.VC90.DebugCRT\msvcr90d.dll" On Mon, Sep 22, 2014 at 4:35 AM, Lars Buitinck wrote: > 2014-09-22 11:30 GMT+02:00 Lars

Re: [Scikit-learn-general] "MemoryError() in 'sklearn.tree._tree.Tree._resize' ignored"

2014-09-20 Thread c TAKES
wrote: > 2014-09-20 21:29 GMT+02:00 c TAKES : > > Exception MemoryError: MemoryError() in 'sklearn.tree._tree.Tree._resize' > > ignored > > > > Anyone recognize this error? > > All too well, but I thought it was fixed for good last time we went > throu

[Scikit-learn-general] "MemoryError() in 'sklearn.tree._tree.Tree._resize' ignored"

2014-09-20 Thread c TAKES
ctive updates is also present in the > matching pursuit (-> orthogonal matching pursuit) and frank-wolfe > literatures. > > Mathieu > > [1] "Boosting Algorithms: Regularization, Prediction and Model Fitting", > Peter B ̈uhlmann and Torsten Hothorn (thanks to Peter fo

Re: [Scikit-learn-general] Sparse Gradient Boosting & Fully Corrective Gradient Boosting

2014-09-20 Thread c TAKES
fe > literatures. > > Mathieu > > [1] "Boosting Algorithms: Regularization, Prediction and Model Fitting", > Peter B ̈uhlmann and Torsten Hothorn (thanks to Peter for telling me about > this paper) > > [2] > https://github.com/mblondel/ivalice/blob/master/ivalice/

Re: [Scikit-learn-general] Sparse Gradient Boosting & Fully Corrective Gradient Boosting

2014-09-16 Thread c TAKES
st the >> residuals (or negative gradient) so far, I am wondering how such fully >> corrective update would work... >> >> Mathieu >> >> On Tue, Sep 16, 2014 at 9:16 AM, c TAKES wrote: >> >>> Is anyone working on making Gradient Boosting Regressor wo

[Scikit-learn-general] Sparse Gradient Boosting & Fully Corrective Gradient Boosting

2014-09-15 Thread c TAKES
Is anyone working on making Gradient Boosting Regressor work with sparse matrices? Or is anyone working on adding an option for fully corrective gradient boosting, I.E. all trees in the ensemble are re-weighted at each iteration? These are things I would like to see and may be able to help with i