ForgeryNet - Face Forgery Analysis Challenge 2021: Methods and Results. - Yinan He; Lu Sheng; Jing Shao; Ziwei Liu 002; Zhaofan Zou; Zhizhi Guo; Shan Jiang; Curitis Sun; Guosheng Zhang; Keyao Wang; Haixiao Yue; Zhibin Hong; et al. (CoRR, 2021)