I have applied "gaussmix" function in voicebox MATLAB tools to calculate GMM. However, the code gives me error when I run it for 512 GMM components.
No_of_Clusters = 512;
No_of_Iterations = 10;
[m_ubm1,v_ubm1,w_ubm1]=gaussmix(feature,[],No_of_Iterations,No_of_Clusters);
Error using *
Inner matrix dimensions must agree.
Error in gaussmix (line 256)
pk=px*wt; % pk(k,1) effective number of data points for each mixture (could be zero due to underflow)
I need 1024 or 2048 Mixtures for Universal Background Model (UBM) construction. Could anyone give me matlab code to calculate GMM for big number of mixture such as 512 or 2048?
Forget MATLAB, I suggest you to use BOB ( http://idiap.github.io/bob/ ) that has an efficient GMM implementation:
http://www.idiap.ch/software/bob/docs/releases/last/sphinx/html/TutorialsMachine.html#gaussian-mixture-models
and with support:
https://groups.google.com/forum/#!forum/bob-devel
https://github.com/idiap/bob/issues
I agree with Sébastien Marcel, forget Matlab for that process. You could also use the Alize platform, which has an optimized code and uses all CPU resources.
http://mistral.univ-avignon.fr/index_en.html
Yes mathworks can help with this error with MATLAB code for Gaussian Mixture Model, www.mathworks.com
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