Motion-Focused Contrastive Learning of Video Representations*
      Rui Li  , Yiheng Zhang  , Zhaofan Qiu  , Ting Yao  , Dong Liu  , and Tao Mei

  University of Science and Technology of China, Hefei, China  JD AI Research, Beijing, China
      liruid@mail.ustc.edu.cn, {yihengzhang.chn, zhaofanqiu, tingyao.ustc}@gmail.com
                     dongeliu@ustc.edu.cn, tmei@live.com

              Abstract                the number of self-supervised learning papers practically
            ...