手法を比較

	正則化連邦学習	正則化ロジスティック回帰
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	2020	1996–2005
提唱者	Li, T. et al. (FedProx); McMahan, B. et al. (FedAvg base)	Tibshirani, R. (lasso); Hoerl & Kennard (ridge); Zou & Hastie (elastic net)
種類	Distributed optimization with regularization	Penalized classification model
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.	Tibshirani, R. (1996). Regression shrinkage and selection via the lasso. Journal of the Royal Statistical Society: Series B, 58(1), 267–288.
別名	FedProx, federated learning with regularization, proximal federated learning, penalized federated optimization	penalized logistic regression, L1 logistic regression, L2 logistic regression, elastic net logistic regression
関連	6	5
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.	Regularized logistic regression extends standard logistic regression by adding an L1 (lasso), L2 (ridge), or elastic net penalty to the log-likelihood, shrinking coefficients toward zero and preventing overfitting. It is the default choice for binary or multinomial classification when you want interpretable, sparse, or stable coefficient estimates in high-dimensional or collinear feature spaces.