Convergence of the forward-backward algorithm: beyond the worst-case with the help of geometry

We provide a comprehensive study of the convergence of the forward-backward algorithm under suitable geometric conditions, such as conditioning or Łojasiewicz properties. These geometrical notions are usually local by nature, and may fail to describe the fine geometry of objective functions relevant...

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Vydané v:	Mathematical programming Ročník 198; číslo 1; s. 937 - 996
Hlavní autori:	Garrigos, Guillaume, Rosasco, Lorenzo, Villa, Silvia
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2023 Springer Springer Verlag
Predmet:	Algorithms Analysis Calculus of Variations and Optimal Control; Optimization Combinatorics Full Length Paper Mathematical and Computational Physics Mathematical Methods in Physics Mathematics Mathematics and Statistics Mathematics of Computing Numerical Analysis Optimization and Control Signal processing Theoretical Inverse problems 90C25 Convergence rates Łojasiewicz property 65K10 49M27 Forward Backward algorithm 47J26 Conditioned functions Source condition
ISSN:	0025-5610, 1436-4646
On-line prístup:	Získať plný text
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