Query Expansion via Link Analysis of Wikipedia for CLIR. - Chih-Chuan Hsu; Yu-Te Li; Youwei Chen; Shih-Hung Wu (NTCIR, 2008)

Query Expansion from Wikipedia and Topic Web Crawler on CLIR. - Meng-Chun Lin; Min-Xiang Li; Chih-Chuan Hsu; Shih-Hung Wu (NTCIR, 2010)

Evaluating the Information Retrieval Performance of Query Expansion Method and On-line Search Engine on General Query. - Chih-Chuan Hsu; Shih-Hung Wu (Int. J. Comput. Linguistics Chin. Lang. Process., 2011)