Hybrid term indexing for different IR models. - Ken C. W. Chow; Robert W. P. Luk; Kam-Fai Wong; K. L. Kwok (IRAL, 2000)

Hybrid Term Indexing for Weighted Boolean and Vector Space Models. - Ken C. W. Chow; Robert W. P. Luk; Kam-Fai Wong; Kui-Lam Kwok (Int. J. Comput. Process. Orient. Lang., 2001)