[1] DASH M,LIU H.Feature Selection for Clustering [C]//Proc. of PAKDD'00.London UK:Springer-Verlag,2000:110-121.[2] WILBUR I W,SIROTKIN K.The Automatic Identification of Stop Words [J].Journal of Information Science,1992,18(1):45-55.[3] 田振声.基于文本聚类技术的邮件分类系统的研究与实现 [D].南京:河海大学,2005:170-173.