The Width of Gaussian Kernel

3 次查看（过去 30 天）

riad didou 2020-9-19

编辑： riad didou 2020-9-25

I have a MATLAB code for a gaussian kernel (Radial Basis Function):

dist = EuDist2(X{it},C{it},0);

sigma = mean(min(dist,[],2).^0.5)*2;

feaVec = exp(-dist/(2*sigma*sigma));

X and C are a known matrices;

What is the name of method used for the calculation of Sigma that way? is it a standard technique ?

在 Help Center 和 File Exchange 中查找有关 Regression 的更多信息

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by