smile.math.kernel

Interface KernelMatrix

public interface KernelMatrix

A kernel matrix of dataset is the array of k(x_i, x_j). Various cache strategies can be used to reduce the evaluations of kernel functions during training a kernel machine such as SVM.

Author:

Haifeng Li

Method Summary

Modifier and Type	Method and Description
double	k(int i, int j) Returns the element k(xi, xj) of kernel matrix for a given dataset.

Method Detail

k

double k(int i,
         int j)

Returns the element k(x_i, x_j) of kernel matrix for a given dataset.