Kai Liu (Member, IEEE) received the B.S., M.S., and Ph.D. degrees with Xidian University, Xi’an, China, in 1994, 1997, and 2001, respectively. From March 2000 to February 2001, he was a Visiting Researcher with Shizuoka University, Hamamatsu, Japan. From January 2002 to February 2004, he was a Senior Research Associate with the Illinois Institute of Technology, Chicago, USA. From February 2015 to March 2016, he was a Visiting Scholar at Texas A&M University, College Station, USA. He is currently a Professor with the School of Electronics and Information Engineering, Beihang University, Beijing, China. He is also a Senior Member of CIE. His research interests include information communication technology and computing intelligence.