Question classification with semantic tree kernel. - Yan Pan 002; Yong Tang 001; Luxian Lin; Yemin Luo (SIGIR, 2008)

Learning to rank with a Weight Matrix. - Zewu Peng; Yong Tang 001; Luxian Lin; Yan Pan 002 (CSCWD, 2010)

Question Classification Using Profile Hidden Markov Models. - Yan Pan 002; Yong Tang 001; Yemin Luo; Luxian Lin; Guibin Wu (Int. J. Artif. Intell. Tools, 2010)