基于词频差异的特征选取及改进的TF-IDF公式

罗欣，夏德麟，晏蒲柳

Improved feature selection method and TF-IDF formula based on word frequency differentia

LUO Xin,XIA De-lin,YAN Pu-liu

计算机应用 . 2005, (09): 2031 -2033 . DOI: 10.3724/SP.J.1087.2005.02031