Actor-Action Video Classification CSC 249/449 Spring 2020 Challenge Report. - Jing Shi 005; Zhiheng Li 002; Haitian Zheng; Yihang Xu; Tianyou Xiao; Weitao Tan; Xiaoning Guo; Sizhe Li; Bin Yang; Zhexin Xu; Ruitao Lin; Zhongkai Shangguan; et al. (CoRR, 2020)