TF-IDF notes

vectorizer = CountVectorizer () # construct a computing term frequency ( TF ) stuff, of course, there is a lack of these can be done

transformer = TfidfTransformer () # build a computing TF-IDF stuff

 

TfidfTransformer + CountVectorizer  =  TfidfVectorizer

Python in TfidfVectorizer parameter parsing: https://blog.csdn.net/feng_zhiyu/article/details/81952697

TF-IDF algorithm introduction and realization : https://blog.csdn.net/asialee_bird/article/details/81486700