Mercurial > hg > camir-aes2014

diff toolboxes/distance_learning/mlr/cuttingPlane/cpGradientDiagMKL.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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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolboxes/distance_learning/mlr/cuttingPlane/cpGradientDiagMKL.m	Tue Feb 10 15:05:51 2015 +0000
@@ -0,0 +1,12 @@
+function dPsi = cpGradientDiagMKL(X, S, batchsize)
+
+    [d,n,m] = size(X);
+
+    dPsi    = zeros(d,m);
+
+    for i = 1:m
+        dPsi(:,i)    = diag(X(:,:,i) * S * X(:,:,i)');
+    end
+    
+    dPsi = dPsi / batchsize;
+end