this repository is the source code of my zhihu Specification "Text Mining and Personal Recommendation" (https://zhuanlan.zhihu.com/text-mining-rec?group_id=879286928351059968)
"EM" folder---implement code of Expectation Maxmization responding to the related aritcle in zhihu Specification
"crawler-introduction" folder---implement code of an easy crawler using Python 2.7
"LDA" folder---implement code of LDA, using Gensim