expp.m

来自「监督学习是机器学习中很重要的一种技术,该压缩包中是一个快速监督学习MatLab的」· M 代码 · 共 19 行

function MSE  = expp(n,numruns,numsteps,binsize,featuregenerator,alpha,sigma)
    x = diag(zeros(n));
    MSE = diag(zeros(numsteps/binsize));
    for run = 1:n
        w = diag(zeros(n));
        for t = 1:numsteps
            for i = 1:n
                x(i) = feval(featuregenerator,i);
            end
            s = w'*x;
            y = feval(sigma,s);
            z = x(1);
            w = w + alpha * (z-y)*x;
            error = (z-y)^2;
            MSE(ceil(t/binsize)) = MSE(ceil(t/binsize)) + error;
        end
    end
    MSE = MSE./(binsize*numruns);