annotate toolboxes/distance_learning/mlr/feasible/feasibleFullMKL.m @ 0:e9a9cd732c1e tip

first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
parents
children
rev   line source
wolffd@0 1 function W = feasibleFullMKL(W)
wolffd@0 2 %
wolffd@0 3 % W = feasibleFullMKL(W)
wolffd@0 4 %
wolffd@0 5 % Projects a single d*d matrix onto the PSD cone
wolffd@0 6 %
wolffd@0 7 global FEASIBLE_COUNT;
wolffd@0 8 m = size(W,3);
wolffd@0 9 FEASIBLE_COUNT = FEASIBLE_COUNT + m;
wolffd@0 10
wolffd@0 11 parfor i = 1:m
wolffd@0 12 [v,d] = eig(0.5 * (W(:,:,i) + W(:,:,i)'));
wolffd@0 13 W(:,:,i) = v * bsxfun(@times, max(real(diag(d)),0), v');
wolffd@0 14 end
wolffd@0 15 end
wolffd@0 16