Yungchang Ku is a visiting scholar in the AI Lab at the MIS department of the University of Arizona. He is presently a doctoral student in Information Management, Yuan Ze University, Chung-Li, Taoyuan, Taiwan. He is also an Associate Technical Specialist, Department of Academic Affairs, at Central Police University, Taiwan. He also holds an M.S. in Information Management, which he received from National Central University, Chung-Li, Taoyuan, Taiwan, in 2001.