How to build a correct spline kernel for svm

Hi everybody,

I have a question regarding the implementation of kernels. I want to use a spline kernel which is not in the toolbox. the code is relatively easy.

z = 1 + u.*v + (1/2)*u.*v.*min(u,v) - (1/6)*(min(u,v)).^3;

k = prod(z);

but there is always an error because of the matrix dimensions. how can I solve it?

Thanks in advance

Daniel

Answer 1

[Ilya]

Check out this thread and let us know if it helps: http://www.mathworks.com/matlabcentral/answers/57232-how-to-use-svmtrain-with-a-custom-kernel-in-matlab