Yonghong Tian is currently a professor with the National Engineering Laboratory for Video Technology, School of Electronics Engineering and Computer Science, Peking University, Beijing, China. He received the Ph.D. degree from the Institute of Computing Technology, Chinese Academy of Sciences, China, in 2005. His research interests include machine learning, computer vision, multimedia analysis and coding. He is the author or coauthor of over 100 technical articles in refereed journals and Conf.s. Dr. Tian is currently a Young Associate Editor of the FRONTIERS OF COMPUTER SCIENCE IN CHINA, the guest editor of the special issue on “Social Multimedia Computing: Challenges, Techniques, and Applications” at Journal of Multimedia, a member of the IEEE TCMC-TCSEM Joint Executive Committee in Asia (JECA), the program co-chair of the first IEEE International Conference on Multimedia Big Data (BigMM 2015).