Huaping Liu is a Professor with the Department of Computer Science and Technology, Tsinghua University. His research interests include robot perception and learning. Prof. Liu was a recipient of the National Science Fund for Distinguished Young Scholars. He served as the Area Chair for Robotics Science and Systems for several times. He is a Senior Editor of the International Journal of Robotics Research. Di Guo is a Professor with the School of Artificial Intelligence, Beijing University of Posts and Telecommunications, Beijing. Her research interests include intelligent robot and multi-modal perception. She has served as the Associate Editor for ICRA and IROS.