Adaptive Optimizers with Sparse Group Lasso for Neural Networks in CTR Prediction. - Yun Yue; Yongchao Liu; Suo Tong; Minghao Li; Zhen Zhang; Chunyang Wen; Huanjun Bao; Lihong Gu; Jinjie Gu; Yixiang Mu (ECML/PKDD (3), 2021)