Yung-Gi, Wu received his BS in information and computer engineering from Chung Yuan Christian University, Chung-Li, Taiwan, in 1992, and his MS and PhD in electrical engineering from the National Cheng Kung University, Tainan, Taiwan, in 1994 and 2000, respectively. From 1994 to1996, he was a Reserve Officers’ Training Corps (ROTC) officer in the army. He was an assistant professor in the Department of Computer Science and Information Engineering and the Institute of Applied Information, Leader University, Tainan, Taiwan from 2000 to 2003. He is current an associate professor since December, 2003. His research interests include image database indexing, image processing, and nonlinear optimization.