Clustering and OCCC Approaches in Document Re-ranking. - Chong Teng; Yanxiang He; Donghong Ji; Yixuan Geng; Zhewei Mai; Guimin Lin (NTCIR, 2010)

Recognizing Text Entailment via Syntactic Tree Matching. - Zhewei Mai; Yue Zhang; Donghong Ji (NTCIR, 2011)