Query Expansion Using Domain Adapted, Weighted Thesaurus in an Extended Boolean Model. - Oh-Woog Kwon; Myoung-Cheol Kim; Key-Sun Choi (CIKM, 1994)

A Comparison of Collocation-Based Similarity Measures in Query Expansion. - Myoung-Cheol Kim; Key-Sun Choi (Inf. Process. Manag., 1999)