National University of Singapore at the TREC 13 Question Answering Main Task. - Hang Cui 002; Keya Li; Renxu Sun; Tat-Seng Chua; Min-Yen Kan (TREC, 2004)

Question answering passage retrieval using dependency relations. - Hang Cui 002; Renxu Sun; Keya Li; Min-Yen Kan; Tat-Seng Chua (SIGIR, 2005)

Dependency relation matching for answer selection. - Renxu Sun; Hang Cui 002; Keya Li; Min-Yen Kan; Tat-Seng Chua (SIGIR, 2005)

Using Syntactic and Semantic Relation Analysis in Question Answering. - Renxu Sun; Jing Jiang 001; Yee Fan Tan; Hang Cui 002; Tat-Seng Chua; Min-Yen Kan (TREC, 2005)

Mining dependency relations for query expansion in passage retrieval. - Renxu Sun; Chai-Huat Ong; Tat-Seng Chua (SIGIR, 2006)