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The forward-backward operator splitting algorithm is one of the most important methods for solving the optimization problem of the sum of two convex functions, where one is differentiable with a Lipschitz continuous gradient and the other…

最优化与控制 · 数学 2019-08-30 Yu-Chao Tang , Guo-Rong Wu , Chuan-Xi Zhu

In this paper we focus on the convergence analysis of the forward-backward splitting method for solving nonsmooth optimization problems in Hilbert spaces when the objective function is the sum of two convex functions. Assuming that one of…

最优化与控制 · 数学 2016-10-17 J. Y. Bello Cruz , T. T. A. Nghia

The forward-backward splitting algorithm is a popular operator-splitting method for solving monotone inclusion of the sum of a maximal monotone operator and a cocoercive operator. In this paper, we present a new convergence analysis of a…

泛函分析 · 数学 2019-08-30 Fuying Cui , Yuchao Tang , Chuanxi Zhu

In this paper, we consider the Forward--Backward proximal splitting algorithm to minimize the sum of two proper convex functions, one of which having a Lipschitz continuous gradient and the other being partly smooth relative to an active…

最优化与控制 · 数学 2015-03-11 Jingwei Liang , Jalal Fadili , Gabriel Peyré

In this paper, we study local convergence of high-order Tensor Methods for solving convex optimization problems with composite objective. We justify local superlinear convergence under the assumption of uniform convexity of the smooth…

最优化与控制 · 数学 2021-05-21 Nikita Doikov , Yurii Nesterov

We present in this paper two different classes of general $K$-splitting algorithms for solving finite-dimensional convex optimization problems. Under the assumption that the function being minimized has a Lipschitz continuous gradient, we…

最优化与控制 · 数学 2015-03-13 Donald Goldfarb , Shiqian Ma

We develop a line-search second-order algorithmic framework for minimizing finite sums. We do not make any convexity assumptions, but require the terms of the sum to be continuously differentiable and have Lipschitz-continuous gradients.…

最优化与控制 · 数学 2022-06-28 Daniela di Serafino , Nataša Krejić , Nataša Krklec Jerinkić , Marco Viola

In this paper, we provide a generalization of the forward-backward splitting algorithm for minimizing the sum of a proper convex lower semicontinuous function and a differentiable convex function whose gradient satisfies a locally…

最优化与控制 · 数学 2023-06-29 Luis M. Briceno-Arias , Francisco José Silva , Xianjin Yang

We study the variable metric forward-backward splitting algorithm for convex minimization problems without the standard assumption of the Lipschitz continuity of the gradient. In this setting, we prove that, by requiring only mild…

最优化与控制 · 数学 2017-05-02 Saverio Salzo

This paper studies first-order algorithms for solving fully composite optimization problems over convex and compact sets. We leverage the structure of the objective by handling its differentiable and non-differentiable components…

最优化与控制 · 数学 2023-07-13 Maria-Luiza Vladarean , Nikita Doikov , Martin Jaggi , Nicolas Flammarion

We consider global efficiency of algorithms for minimizing a sum of a convex function and a composition of a Lipschitz convex function with a smooth map. The basic algorithm we rely on is the prox-linear method, which in each iteration…

最优化与控制 · 数学 2017-08-16 Dmitriy Drusvyatskiy , Courtney Paquette

In this paper, we consider the problem of minimizing the sum of two convex functions subject to linear linking constraints. The classical alternating direction type methods usually assume that the two convex functions have relatively easy…

最优化与控制 · 数学 2015-07-10 Tianyi Lin , Shiqian Ma , Shuzhong Zhang

In this paper we propose a variant of the random coordinate descent method for solving linearly constrained convex optimization problems with composite objective functions. If the smooth part of the objective function has Lipschitz…

最优化与控制 · 数学 2013-02-14 Ion Necoara , Andrei Patrascu

This paper provides a comprehensive study of the nonmonotone forward-backward splitting (FBS) method for solving a class of nonsmooth composite problems in Hilbert spaces. The objective function is the sum of a Fr\'echet differentiable (not…

最优化与控制 · 数学 2023-03-06 Behzad Azmi , Marco Bernreuther

In this paper, we propose an adaptive forward-backward-forward splitting algorithm for finding a zero of a pseudo-monotone operator which is split as a sum of three operators: the first is continuous single-valued, the second is…

最优化与控制 · 数学 2025-03-04 Flavia Chorobura , Ion Necoara , Jean-Christophe Pesquet

This paper addresses a class of general nonsmooth and nonconvex composite optimization problems subject to nonlinear equality constraints. We assume that a part of the objective function and the functional constraints exhibit local…

最优化与控制 · 数学 2025-03-04 Lahcen El Bourkhissi , Ion Necoara , Panagiotis Patrinos , Quoc Tran-Dinh

We propose an adaptive accelerated smoothing technique for a nonsmooth convex optimization problem where the smoothing update rule is coupled with the momentum parameter. We also extend the setting to the case where the objective function…

最优化与控制 · 数学 2026-04-21 Reza Rahimi Baghbadorani , Sergio Grammatico , Peyman Mohajerin Esfahani

The standard assumption for proving linear convergence of first order methods for smooth convex optimization is the strong convexity of the objective function, an assumption which does not hold for many practical applications. In this…

最优化与控制 · 数学 2016-08-10 I. Necoara , Yu. Nesterov , F. Glineur

The forward-backward splitting method (FBS) for minimizing a nonsmooth composite function can be interpreted as a (variable-metric) gradient method over a continuously differentiable function which we call forward-backward envelope (FBE).…

最优化与控制 · 数学 2019-11-11 Lorenzo Stella , Andreas Themelis , Panagiotis Patrinos

This paper introduces the generalized forward-backward splitting algorithm for minimizing convex functions of the form $F + \sum_{i=1}^n G_i$, where $F$ has a Lipschitz-continuous gradient and the $G_i$'s are simple in the sense that their…

最优化与控制 · 数学 2014-02-11 Hugo Raguet , Jalal Fadili , Gabriel Peyré
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