sparsealignmentstest2.m

来自「a function inside machine learning」· M 代码 · 共 22 行

%A script to test the efficiency of sparse alignments 

clear;
rand('state',22); 

numExamples = 2000;
numFeatures = 500;
tol = 10^-5;

X = rand(numExamples, numFeatures);
Y = sign(rand(numExamples, 1)-0.5);

X = centerData(X);

KX = X*X';


for i= 1:20
    fprintf('Iteration %d\n', i); 
    [covariances, bs] = sparseAlignments(KX, KX, Y, Y, (1:numExamples)');
end