centertestkernel.m.svn-base

来自「a function inside machine learning」· SVN-BASE 代码 · 共 9 行

function newTestTrainK = centerTestKernel(testTrainK, trainKmeans);

numTrainExamples = size(testTrainK, 2);
numTestExamples = size(testTrainK, 1); 

j = ones(numTestExamples, 1); 
j2 = ones(numTrainExamples, 1); 

newTestTrainK = testTrainK - j*trainKmeans' - (testTrainK*j2*j2')/numTrainExamples + sum(trainKmeans)*ones(numTestExamples, numTrainExamples)/numTrainExamples;