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HMM-based-valuation-model

于 2015-05-22 发布 文件大小:6KB
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  给定观测序列 O=O1O2O3…Ot和模型参数λ=(A,B,π),怎样有效计算某一观测序列的概率,进而可对该HMM做出相关评估。例如,已有一些模型参数各异的HMM,给定观测序列O=O1O2O3…Ot,我们想知道哪个HMM模型最可能生成该观测序列。通常我们利用forward算法分别计算每个HMM产生给定观测序列O的概率,然后从中选出最优的HMM模型。(Given the observation sequence O = O1O2O3 ... Ot and model parameters λ = (A, B, π), how to effectively calculate the probability that a single observation sequence, and thus can make the relevant assessment of the HMM. For example, there are a number of different model parameters HMM, given the observation sequence O = O1O2O3 ... Ot, we want to know which model is most likely to generate the HMM observation sequence. Usually we use forward algorithm calculates the probability of a given observation sequence O generated for each HMM, HMM and then to choose the best model.)

文件列表:

基于HMM模型解决估值问题
.......................\AlphaMatrix.xls,24064,2013-10-07
.......................\HMM_Backward.m,1010,2003-06-26
.......................\HMM_Forward.m,957,2013-07-03
.......................\HMM_Forward_demo.m,1289,2013-07-01

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