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I’m implementing softmax regression in Octave. Currently I’m using a non-vectorized implementation using following cost function and derivatives.
Source: Softmax Regression
Now I want to implement vectorized version of it in Octave. It seems like bit hard for me to write vectorized versions for these equations. Can somebody help me to implement this ?
Thanks
Upul
This is very similar to an exercise in Andrew Ng’s deep learning class, they give some hints
http://ufldl.stanford.edu/wiki/index.php/Exercise:Vectorization