Re: [Scikit-learn-general] Exclusivity of scikit-learn

2014-12-02 Thread Joel Nothman
Hi Tom, Anyone is welcome to publish their implementations in a format compatible with scikit-learn's estimators. However, the centralised project already takes a vast amount of work (almost all of it unpaid) to maintain, even while adopting a very restrictive scope. Incorporating less-established

Re: [Scikit-learn-general] Exclusivity of scikit-learn

2014-12-02 Thread Gael Varoquaux
On Tue, Dec 02, 2014 at 08:32:45PM -0800, Tom Fawcett wrote: > Anyone know of another python framework that’s a little more welcoming? Well, packages need a decision rule to filter out the massive amount of published algorithms, and implementing and doing maintainance on the complete literature is

[Scikit-learn-general] Exclusivity of scikit-learn

2014-12-02 Thread Tom Fawcett
> On Dec 2, 2014, at 6:34 AM, Andy wrote: > > Hi Ilya. > > Thanks for your interest in contributing. > I am not expert in affinity propagation, so it would be great if you could > give some details of what the advantage of the method is. > The reference paper seems to be an arxiv preprint with

Re: [Scikit-learn-general] swap error with SVM rbf kernel

2014-12-02 Thread Pagliari, Roberto
Hi Andy, I think that was an issue with the VM I as using. When running it on my laptop I'm not seeing this issue. Thank you, From: Andy [mailto:[email protected]] Sent: Tuesday, December 02, 2014 11:07 AM To: [email protected] Subject: Re: [Scikit-learn-general] swap e

[Scikit-learn-general] gradientboosting

2014-12-02 Thread Pagliari, Roberto
When using gradient boosting, my understanding is that samples that were misclassified are more emphasized. Which particular algorithm is used for classification? Thank you, -- Download BIRT iHub F-Type - The Free Enterp

Re: [Scikit-learn-general] AdaptiveSGD

2014-12-02 Thread Alexandre Gramfort
FYI Mathieu and myself converged on this with Danny, believing it's the easiest move. It could later be improved and extended with schemes that also use feature specific learning rates. any thought? Alex On Tue, Dec 2, 2014 at 2:48 PM, Daniel Sullivan wrote: > Hey All, > > I've been looking a

Re: [Scikit-learn-general] swap error with SVM rbf kernel

2014-12-02 Thread Andy
On 12/02/2014 11:11 AM, Paolo Losi wrote: > That is not actually an error. That should simple be the output of > /usr/bin/time invocation. > > $ /usr/bin/time sleep 1 > 0.00user 0.00system 0:01.00elapsed 0%CPU (0avgtext+0avgdata > 1900maxresident)k > 0inputs+0outputs (0major+79minor)pagefaults 0s

Re: [Scikit-learn-general] swap error with SVM rbf kernel

2014-12-02 Thread Paolo Losi
That is not actually an error. That should simple be the output of /usr/bin/time invocation. $ /usr/bin/time sleep 1 0.00user 0.00system 0:01.00elapsed 0%CPU (0avgtext+0avgdata 1900maxresident)k 0inputs+0outputs (0major+79minor)pagefaults 0swaps probably Roberto is using a script that makes use o

Re: [Scikit-learn-general] swap error with SVM rbf kernel

2014-12-02 Thread Andy
Hi Roberto. I haven't seen that error before. The titianic dataset is quite small, so there shouldn't really be an issue. What parameters are you using? Can you just post your code? It might be that very high values of C or gamma result in numerical instabilities. Cheers, Andy On 12/02/20

[Scikit-learn-general] swap error with SVM rbf kernel

2014-12-02 Thread Pagliari, Roberto
I'm using SVM with a dataset from kaggle competition(titanic). When running SVM I sometime get this error 731.52user 18.36system 2:03.66elapsed 606%CPU (0avgtext+0avgdata 67152maxresident)k 0inputs+16outputs (0major+38276minor)pagefaults 0swaps Is there any way to debug this? Thank you

Re: [Scikit-learn-general] Does anybody works on adaptive affinity propagation clustering algorithm?

2014-12-02 Thread Andy
Hi Ilya. Thanks for your interest in contributing. I am not expert in affinity propagation, so it would be great if you could give some details of what the advantage of the method is. The reference paper seems to be an arxiv preprint with 88 citations, which would probably not qualify for inclu

[Scikit-learn-general] Does anybody works on adaptive affinity propagation clustering algorithm?

2014-12-02 Thread Илья Патрушев
Hi everybody, As far as I am aware, there is no adaptive affinity propagation clustering algorithm implementation in neither the stable nor the development version of sklearn. I have recently implemented the adaptive affinity propagation algorithm as a part of my image analysis project. I based my

[Scikit-learn-general] AdaptiveSGD

2014-12-02 Thread Daniel Sullivan
Hey All, I've been looking at adding Adagrad to SGD for a while now. Alex, Mathieu and I were discussing the possibility of having a separate class for Adagrad entirely. The benefits of this would be that the implementation of SGD would not get muddled up and Adagrad could be implemented in a much