How to use a custom kernel in Matlab like chi square

Question

I want to use a chi squared kernel with svmtrain in matlab but I can not find an implementation on internet. Does any one know how to make a custom MATLAB kernel for the matlab function svmtrain?

score 0 · Accepted Answer · answered Nov 17 '12 at 15:22

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You can pass an anonymous function @(x,y) 1 - sum((x - y).^2 ./ (x + y) / 2) as the kernel_function argument.

answered Nov 17 '12 at 15:22

Memming

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score 0 · Answer 2 · edited May 23 '17 at 12:19

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You can accomplish this by using precomputed kernels, an excellent example and a more detailed explanation can be found in this question: using precomputed kernels with libsvm

edited May 23 '17 at 12:19

Community

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answered Nov 13 '13 at 23:17

Robin

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How to use a custom kernel in Matlab like chi square

2 Answers2