jens
7b34529b24
git-svn-id: http://moon:8086/svn/matlab/trunk@91 801c6759-fa7c-4059-a304-17956f83a07c
9 lines
216 B
Matlab
9 lines
216 B
Matlab
function [Hv] = LogisticHv(v,w,X,y)
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% v(feature,1) - vector that we will multiply Hessian by
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% w(feature,1)
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% X(instance,feature)
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% y(instance,1)
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sig = 1./(1+exp(-y.*(X*w)));
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Hv = X.'*(sig.*(1-sig).*(X*v));
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