gusucode.com > 支持向量机工具箱 - LIBSVM OSU_SVM LS_SVM源码程序 > 支持向量机工具箱 - LIBSVM OSU_SVM LS_SVM\LS_SVMlab\MLP_kernel.m
function x = MLP_kernel(a,b, par) % Multi Layer Perceptron kernel function for implicit higher dimension mapping % % x = MLP_kernel(a,b,[s,t]) % % 'a' can only contain one datapoint in a row, 'b' can contain N % datapoints of the same dimension as 'a'. % % x = tanh(s*a'b+t^2) % % see also: % poly_kernel, lin_kernel, RBF_kernel, trainlssvm, simlssvm % Copyright (c) 2002, KULeuven-ESAT-SCD, License & help @ http://www.esat.kuleuven.ac.be/sista/lssvmlab if length(par)==1, par(2) = 1; end x = zeros(size(b,1),1); for i=1:size(b,1), dp = a*b(i,:)'; x(i,1) = tanh(par(1)*dp + par(2)^2); end