PAPAYA: Practical, Private, and Scalable Federated Learning. - Dzmitry Huba; John Nguyen; Kshitiz Malik; Ruiyu Zhu; Mike Rabbat; Ashkan Yousefpour; Carole-Jean Wu; Hongyuan Zhan; Pavel Ustinov; Harish Srinivas; Kaikai Wang; Anthony Shoumikhin; et al. (MLSys, 2022)