Communication-Efficient Learning of Deep Networks from Decentralized Data, H. Brendan McMahan, Eider Moore, Daniel Ramage, Seth Hampson, and Blaise Agüera y Arcas, 2017Proceedings of the 20th International Conference on Artificial Intelligence and Statistics (AISTATS), Vol. 54 (JMLR: W&CP)DOI: 10.48550/arXiv.1602.05629 - Introduces Federated Averaging (FedAvg) and discusses communication cost as a primary challenge, laying the groundwork for communication-efficient federated learning.