Bio: Chenliang Xu is a Ph.D. candidate in the Department of Electrical Engineering and Computer Science at the University of Michigan, Ann Arbor. He is a member in the Artificial Intelligence Lab and is advised by Prof. Jason J. Corso. He received his M.S. in Computer Science and Engineering at the State University of New York at Buffalo in 2012 and the B.S. in Information and Computing Science at Nanjing University of Aeronautics and Astronautics in 2010. His research interests include computer vision and robot perception especially the problems of video segmentation, recognition, and modeling from a hierarchical perspective.