SAGA

2000년 도입 · 논문 81편에서 사용

SAGA is a method in the spirit of SAG, SDCA, MISO and SVRG, a set of recently proposed incremental gradient algorithms with fast linear convergence rates. SAGA improves on the theory behind SAG and SVRG, with better theoretical convergence rates, and has support for composite objectives where a proximal operator is used on the regulariser. Unlike SDCA, SAGA supports non-strongly convex problems directly, and is adaptive to any inherent strong convexity of the problem.

출처: SAGA: A Fast Incremental Gradient Method With Support for Non-Strongly Convex Composite Objectives

소개 논문: SAGA: A Fast Incremental Gradient Method With Support for Non-Strongly Convex Composite Objectives