Joint Feature Selection Method of Document Frequency and CHI With Application to Web Pages Categorization

Based on the analysis of document frequency and CHI feature selection,which are respectively related and unrelated to class information,this paper proposes a joint feature selection method in order to increase the accuracy of categorization results by selecting effective token features.The web pages categorization system using the joint method won the third out of eight teams on Macro-F1 on SEWM2007 evaluation.