Guoyuan Liang received his Ph.D. degree in signal and information processing from Peking University, Beijing, China, in 2005. After that, he served first as a postdoctoral fellow and then as a research scientist at the University of Iowa in USA. He is currently an Associate Professor at the Center for Intelligent and Biomimetic Systems, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China. His current research fields include computer vision, pattern recognition, data mining, and artificial intelligence.