Eduard A. Gorbunov, Filip Hanzely, Peter Richtárik. Local SGD: Unified Theory and New Efficient Methods. In Arindam Banerjee 0001, Kenji Fukumizu, editors, The 24th International Conference on Artificial Intelligence and Statistics, AISTATS 2021, April 13-15, 2021, Virtual Event. Volume 130 of Proceedings of Machine Learning Research, pages 3556-3564, PMLR, 2021. [doi]