Excalibur: A Personalized Meta Search Engine. - Leo Yuen; Matthew Chang; Ying Kit Lai; Chung Keung Poon (COMPSAC Workshops, 2004)

Approximate Colored Range Queries. - Ying Kit Lai; Chung Keung Poon; Benyun Shi (ISAAC, 2005)

Approximate colored range and point enclosure queries. - Ying Kit Lai; Chung Keung Poon; Benyun Shi (J. Discrete Algorithms, 2008)