A Symmetry-Preserving Extrapolated Primal-Dual Hybrid Gradient Method for Saddle-Point Problems

The primal-dual hybrid gradient (PDHG) method is widely used for convex–concave saddle-point problems, yet its extrapolated variants are typically asymmetric because only one side is extrapolated. We propose a symmetry-preserving refinement, E-PDHG, which performs dual-side extrapolation followed by...

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Hlavní autoři:	Xiayang Zhang, Wenzhuo Li, Bowen Chang, Wei Liu, Shiyu Zhang
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	MDPI AG 2026-03-01
Edice:	Axioms
Témata:	primal-dual method saddle-point problem extrapolation image processing symmetry
On-line přístup:	https://www.mdpi.com/2075-1680/15/3/219
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