算法viterbi-阿里云

隐马尔可夫模型学习小记——forward算法+viterbi算法+forward-backward算法（Baum-welch算法）

网上关于HMM的学习资料、博客有很多，基本都是左边摘抄一点，右边摘抄一点，这里一个图，那里一个图，公式中有的变量说不清道不明，学起来很费劲。经过浏览几篇博文（其实有的地方写的也比较乱），在7张4开的草稿纸上写公式、单步跟踪程序，终于还是搞清楚了HMM的原理。 HMM学习过程： 1、搜索...

隐马尔可夫模型的Viterbi解码算法

前言前面在做自然语言处理时涉及到一些词性标注的工作，一般会使用隐马尔科夫模型（HMM）来实现词性标注，而HMM模型的解码实现算法一般就会使用Viterbi算法。关于穷举法 HMM模型有多种应用，这里说的是其中一个常见应用，即根据观察序列找到最可能的隐含状态序列。最朴素的想法就是直接穷举所有可能的...

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更新时间 2023-04-25 14:15:33

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