Re: [Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Yogesh Karpate
I have only one comment as of now: On Tue, Nov 26, 2013 at 9:02 PM, Abhi wrote: > >.Please go through a paper "Ensemble of Exemplar-SVMs for Object Detection > and Beyond" by Tomasz Malisiewicz (ICCV 2011) > Thanks, will go through the paper. > > >During testing, a special calibration technique

Re: [Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Abhi
> I am not sure about your question, if the question is: > "what is the best classifier for a particular data set" > the answer (well what I usually do) is to choose a performance metric (confusion matrix, precision vs > recall, average accuracy) > and do a parameter search to find the best algor

Re: [Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Abhi
>.Please go through a paper "Ensemble of Exemplar-SVMs for Object Detection and Beyond" by Tomasz Malisiewicz (ICCV 2011) Thanks, will go through the paper. >During testing, a special calibration techniques used to choose the best output. On terms of calibration, differently sized templates will

Re: [Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Yogesh Karpate
Actually, in mainstream computer vision, some efforts are going on to compare the different outputs in form of (calibrated)probabilties from different classifiers. Please go through a paper "Ensemble of Exemplar-SVMs for Object Detection and Beyond" by Tomasz Malisiewicz (ICCV 2011) For. Ex. In E

Re: [Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Eraldo Pomponi
Dear Paolo, > If that is your question I can share my code. > :-) Sorry if I'm hijacking this tread but, if it is public, I would like to have a look at your code. Thanks a lot. Cheers, Eraldo -- Shape the Mobile Expe

Re: [Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Jaques Grobler
I believe this message is from Abhi too - regarding the same question: How can we combine probabilities from multiple classifiers in sklearn? > [Classifiers are trained on similar type datasets, difference being their > sizes and the way each result might be used]. I am using SGDClassifier to > tr

Re: [Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Olivier Grisel
2013/11/26 Abhi : > How can we normalize and compare probabilities from different classifier > models in scikit? Why do you want to do that? To be more specific, how do you quantify success of your task? By definition, probabilities are "normalized" in the sense that the are guaranteed to live i

Re: [Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Paolo Di Prodi
rithm. If that is your question I can share my code. :-) From: Abhi [[email protected]] Sent: 26 November 2013 09:01 To: [email protected] Subject: [Scikit-learn-general] Comparing probabilities How can we normalize a

[Scikit-learn-general] Comparing probabilities

2013-11-26 Thread Abhi
How can we normalize and compare probabilities from different classifier models in scikit? -- Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(