这是关于隐马尔科夫模型的一篇文章，对于我们理解隐马尔科夫模型有很大帮助，虽然是英文的，但是能提高英语阅读水平。-This is a hidden Markov model on an article, for we understand the hidden Markov model are very helpful, although English, but can enhance the level of English reading.