A Study on the Method of Feature Selection in Chat Text
一种对聊天文本进行特征选取的方法研究

Because online chat text is loosely and briefly organized and is context dependent,there are some defects to select features by using traditional TFIDF(Term Frequency Inverse Document Frequency).Aiming at solving the problem,this paper presents a method that the range of feature selection in chat text is obtained by using chat subjects,and the validity of the method is verified through experiment.