How to fix co variance matrix going singular in Gaussian mixture model implementation ??.

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Sharda
Sharda il 22 Apr 2015
I am implementing GMM in matlab without using any machine learning library. I am able to initialize the parameters ,perform expectation and maximization for 1 iteration,but when I put expectation and maximization in loop for several iterations till convergence,the co variance matrices go singular. How can I fix this issue.

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