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Best SVM Parameters

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Best SVM Parameters

Postby apimentel » Thu Oct 04, 2012 15:06

Hi,

I'm using the SVM classifier with the sigmoid kernel function, and I want to know which are the best parameters for the classifier namely the gamma value and the Cost parameter (C).

I know that there is an automatic parameter search button to choose the best value of C (penalty parameter) using the SVM widget. However I noticed that this choice depends of the initial value that I introduce in the gamma parameter. My question is, isn't there any function in python, or even any widget in the Orange software that will choose the best values for C and gamma at the same time?

Many thanks,

Angela

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