手法を比較

	正則化連邦学習	オンライン学習
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	2020	1958–2000s
提唱者	Li, T. et al. (FedProx); McMahan, B. et al. (FedAvg base)	Rosenblatt, F.; Littlestone, N.; Shalev-Shwartz, S. (key contributors)
種類	Distributed optimization with regularization	Learning paradigm (sequential model update)
原典	Li, T., Sahu, A. K., Zaheer, M., Sanjabi, M., Talwalkar, A., & Smith, V. (2020). Federated Optimization in Heterogeneous Networks. Proceedings of Machine Learning and Systems (MLSys), 2, 429–450.	Shalev-Shwartz, S. (2011). Online Learning and Online Convex Optimization. Foundations and Trends in Machine Learning, 4(2), 107–194.
別名	FedProx, federated learning with regularization, proximal federated learning, penalized federated optimization	incremental learning, sequential learning, streaming learning, online machine learning
関連	6	6
概要	Regularized federated learning extends the federated learning framework by adding penalty terms to each client's local objective, anchoring local updates closer to the global model. The canonical formulation — FedProx — adds a proximal term that controls how far any single client can drift, improving convergence and stability when client data distributions differ substantially.	Online learning is a machine learning paradigm in which a model is updated incrementally as each new data point arrives, rather than being trained once on a fixed dataset. It is essential when data streams continuously, storage is limited, or the underlying distribution shifts over time. Theoretical performance is measured by cumulative regret relative to the best fixed predictor in hindsight.