Liu, Yuxiang, Jidong Ge, Chuanyi Li, and Jie Gui. “Delving into Variance Transmission and Normalization: Shift of Average Gradient Makes the Network Collapse”. Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 3 (May 18, 2021): 2216-2224. Accessed January 22, 2022. https://ojs.aaai.org/index.php/AAAI/article/view/16320.