Nonlinear forward-backward-half forward splitting with momentum for monotone inclusions

Fuente: arXiv
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Autores principales: Qin, Liqian, Tang, Yuchao, Peng, Jigen
Formato: Preprint
Publicado: 2025
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author Qin, Liqian
Tang, Yuchao
Peng, Jigen
author_facet Qin, Liqian
Tang, Yuchao
Peng, Jigen
contents In this work, we propose a new splitting algorithm for solving structured monotone inclusion problems composed of a maximally monotone operator, a maximally monotone and Lipschitz continuous operator and a cocoercive operator. Our method augments the forward-backward-half forward splitting algorithm with a nonlinear momentum term. Under appropriate conditions on the step-size, we prove the weak convergence of the proposed algorithm. A linear convergence rate is also obtained under the strong monotonicity assumption. Furthermore, we investigate a stochastic variance-reduced forward-backward-half forward splitting algorithm with momentum for solving finite-sum monotone inclusion problems. Weak almost sure convergence and linear convergence are also established under standard condition. Preliminary numerical experiments on synthetic datasets and real-world quadratic programming problems in portfolio optimization demonstrate the effectiveness and superiority of the proposed algorithm.
format Preprint
id arxiv_https___arxiv_org_abs_2510_24489
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Nonlinear forward-backward-half forward splitting with momentum for monotone inclusions
Qin, Liqian
Tang, Yuchao
Peng, Jigen
Optimization and Control
47H05, 65K15, 90C25
In this work, we propose a new splitting algorithm for solving structured monotone inclusion problems composed of a maximally monotone operator, a maximally monotone and Lipschitz continuous operator and a cocoercive operator. Our method augments the forward-backward-half forward splitting algorithm with a nonlinear momentum term. Under appropriate conditions on the step-size, we prove the weak convergence of the proposed algorithm. A linear convergence rate is also obtained under the strong monotonicity assumption. Furthermore, we investigate a stochastic variance-reduced forward-backward-half forward splitting algorithm with momentum for solving finite-sum monotone inclusion problems. Weak almost sure convergence and linear convergence are also established under standard condition. Preliminary numerical experiments on synthetic datasets and real-world quadratic programming problems in portfolio optimization demonstrate the effectiveness and superiority of the proposed algorithm.
title Nonlinear forward-backward-half forward splitting with momentum for monotone inclusions
topic Optimization and Control
47H05, 65K15, 90C25
url https://arxiv.org/abs/2510.24489