Accelerated Over-Relaxation Heavy-Ball Method: Achieving Global Accelerated Convergence with Broad Generalization
Keywords: Optimization theory, heavy ball, momentum, acceleration, composite optimization, min-max, saddle point problem
TL;DR: This work introduces the Accelerated Over-Relaxation Heavy-Ball (AOR-HB) method, the first heavy-ball variant with provable global and accelerated convergence for a large class of optimization problems.
Abstract: The heavy-ball momentum method accelerates gradient descent with a momentum term but lacks accelerated convergence for general smooth strongly convex problems. This work introduces the Accelerated Over-Relaxation Heavy-Ball (AOR-HB) method, the first variant with provable global and accelerated convergence for such problems. AOR-HB closes a long-standing theoretical gap, extends to composite convex optimization and min-max problems, and achieves optimal complexity bounds. It offers three key advantages: (1) broad generalization ability, (2) potential to reshape acceleration techniques, and (3) conceptual clarity and elegance compared to existing methods.
Primary Area: optimization
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Submission Number: 8546
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