A novel method for decoding any high-order hidden Markov model
首发时间:2014-06-02
Abstract:This paper proposes a novel method for decoding any high-order hidden Markov model. First, the high-order hidden Markov model is transformed into an equivalent first-order hidden Markov model by Hadar's transformation. Next, the optimal state sequence of the equivalent first-order hidden Markov model is recognized by the existing Viterbi algorithm of the first-order hidden Markov model. Finally, the optimal state sequence of the high-order hidden Markov model is inferred from the optimal state sequence of the equivalent first-order hidden Markov model.
keywords: Probability and mathematical statistics High-order hidden Markov model Decoding problem Model reduction method Hadar's transformation Viterbi algorithm.
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高阶隐马尔可夫模型解码问题的新方法
摘要:本文给出了一种处理高阶隐马尔可夫模型解码问题的新方法. 首先运用Hadar变换方法将高阶隐马尔可夫模型转换为一个与之等价的一阶隐马尔可夫模型,然后通过Viterbi算法得到这个一阶隐马尔可夫模型的最优状态序列,最后根据高阶隐马尔可夫模型与这个一阶隐马尔可夫模型的等价性获得高阶隐马尔可夫模型的最优状态序列.
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