【摘要】 给出了在观测噪声和马尔可夫链不相互独立的条件下与观测信息相关的二阶隐马尔可夫模型的结构及改进模型的前向后向算法与Baum-Welch算法,并导出了改进模型的参数估计公式.更多还原

【Abstract】 This paper first describes the structure of second-order hidden Markov models relation with the observations on condition that observation noise is not independent of the Markov chain,and then researches the Forward-Backward Algorithm and the Baum-Welch algorithm of the modified models,and derives the update parametric estimation equations for the modified models.更多还原