(Senior Member, IEEE) received the M.S. degree in applied mathematics and the Ph.D. degree in pattern recognition and artificial intelligence from the Huazhong University of Science and Technology, Wuhan, China, in 2010 and 2014, respectively. Since 2017, he has been an Assistant Professor with the Faculty of Artificial Intelligence in Education, Central China Normal University, Wuhan, China. From 2023 to 2024, he was selected as the “China-European Commission Talent Program” under the National Natural Science Foundation of China (NSFC). He was a Senior Researcher with the UCL Interaction Centre, University College London, London, U.K., where he was hosted by Prof. Sriram Subramanian. He has authored more than 100 peer-reviewed articles in international journals from multiple domains. More than 20 articles were selected as the ESI highly cited articles and eight papers were selected as the hot papers. His research interests include human pose estimation, gaze tracking, head pose estimation, facial expression recognition, deep learning, artificial intelligence, and self-regulated learning. Dr. Liu was the recipient of the First Prize for the Science and Technology Progress Award by the Hubei Province of China, in 2020. He has been serving as a Reviewer for more than six international journals, including IEEE TRANSACTIONS ON MULTIMEDIA, IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, and IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING. Since 2016, he has been a Communicatio