2Yiming Yang,Jan O Pedersen.A comparative Study on Feature Selection in Text Categorization[C].In :Proceedings of the Fourteenth International Conference on Machine Leaming(ICML'97), 1997.
3Yiming Yang,Xin Liu.A re-examination of text categorization methods[C].In:Proceedings of ACM SIGIR Conference on Research and Development in Information Retrieval SIGIR'99,1999:42---49.
4Yiming Yang.A study on thresholding strategies for text categorization[C].In:Proceedings of ACM SIGIR Conference on Research and Development in Information Retrieval(SIGIR'01),2001.
5Yang Yiming，Proceedings of the 14th International Conference on Machine rning，1997年，412页
