Firstly, the defects of method based on mutual information in the feature selection are analyzed theoretically，then an improved method is put forward. According to the problems of vector space model, the authors use a class space model to express text and take advantage of the category information. In this way, the paper realizes an algorithm of text categorization based on category，and the result based on the Chinese text categorization shows that this method has a better precision in the text categorization.
刘海峰 刘守生 张学仁 苏展. 一种基于类别信息的文本自动分类模型[J]. 现代图书情报技术, 2010, 26(4): 72-76.
Liu Hai-Feng, Liu Shou-Sheng, Zhang Hua-Ren, Su Zhan. A Model of Text Categorization Automatically Based on Category. New Technology of Library and Information Service, DOI：10.11925/infotech.1003-3513.2010.04.12.
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