機器學習 cs229學習筆記3 EM alogrithm Mixture of Gaussians revisited

                (all is based on the stanford's open-course cs229 lecture 13) 接上次筆記 機器學習 cs229學習筆記2 (k-means,EM & Mixture of Gaussians) 如何確定EM算法converge呢？ 當然是比較前後兩次迭代的似然函數的大小，如果相差極小，則可以證明算法已經converge了

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