【中文分词】DAG、DP、HMM、Viterbi

http://blog.sina.com.cn/s/blog_8267db980102wq41.html

http://www.cnblogs.com/leeshine/p/5804679.html

http://blog.csdn.net/daniel_ustc/article/details/48195287

http://www.52nlp.cn/hmm-learn-best-practices-two-generating-patterns

http://www.52nlp.cn/category/hidden-markov-model

http://www.cnblogs.com/skyme/p/4651331.html