annotate toolboxes/RBM/softmax_activation.m @ 0:e9a9cd732c1e tip

first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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wolffd@0 1 function A = softmax_activation( softmax_group)
wolffd@0 2 A = exp(softmax_group);
wolffd@0 3 A = A./repmat(sum(A,2),1,size(A,2));
wolffd@0 4 for i=1:size(A,1)
wolffd@0 5 A(i,:) = cumsum(A(i,:))>rand();
wolffd@0 6 m = max(A(i,:));
wolffd@0 7 inx = find(A(i,:)==m,1,'first');
wolffd@0 8 A(i,:) = 0;
wolffd@0 9 A(i,inx) = 1;
wolffd@0 10 end
wolffd@0 11 end
wolffd@0 12