Using micro information units for internet search. - Xiaoli Li 001; Tong-Heng Phang; Minqing Hu; Bing Liu 001 (CIKM, 2002)

A refinement approach to handling model misfit in text categorization. - Haoran Wu; Tong-Heng Phang; Bing Liu 001; Xiaoli Li 001 (KDD, 2002)