Prof. Liu Si, who is the leader of the CoLab, is a professor in Beihang University. She was a visiting professor in Microsoft Research Asia. She used to work with Prof. Shuicheng Yan in National University of Singapore. She obtained Ph.D. degree from Institute of Automation, Chinese Academy of Sciences (CASIA), under the supervision of Prof. Hanqing Lu. She obtained Bachelor degree from Advanced Class of Beijing Institute of Technology (BIT) .