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

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