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math.OC2020
A FISTA-Type First Order Algorithm on Composite Optimization Problems that is Adaptable to the Convex Situation
Chee-Khian Sim
In this note, we propose a FISTA-type first order algorithm, VAR-FISTA, to solve a composite optimization problem. A distinctive feature of VAR-FISTA is its ability to exploit the…
math.OC2019
A FISTA-type accelerated gradient algorithm for solving smooth nonconvex composite optimization problems
Jiaming Liang, Renato D. C. Monteiro, Chee-Khian Sim
In this paper, we describe and establish iteration-complexity of two accelerated composite gradient (ACG) variants to solve a smooth nonconvex composite optimization problem whose…