Xiaodan Liang Associate Professor, Sun Yat-sen University Email: xdliang328@gmail.com Hang Xu Research Scientist, Huawei Noah's Ark Lab Email: xu.hang@huawei.com Fisher Yu Assistant Professor, ETH Zürich Email: i@yf.io Wei Zhang Senior Research Director, Huawei Noah's Ark Lab Email: wz.zhang@huawei.com Michael Kampffmeyer Associate Professor, UiT The Arctic University of Norway Email: michael.c.kampffmeyer@uit.no Ping Luo Assistant Professor, The University of Hong Kong Email: pluo.lhi@gmail.com