EM(maximization algorithm)算法尋找蛋白質motif

這是一道課程作業：給出了2000條蛋白質序列，每條長度爲50，要求使用EM算法尋找其中的motif（假設motif長度爲7）. Expectation Maximization (EM) Algorithm EM is a two-stage iterative process. An initial guess is made as to the location and size of a s

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