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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

In this paper, we develop an inexact version of the catching-up algorithm for sweeping processes. We define a new notion of approximate projection, which is compatible with any numerical method for approximating exact projections, as this…

最优化与控制 · 数学 2025-01-10 Juan Guillermo Garrido , Maximiliano Lioi , Emilio Vilches

Existence of optimal solutions and necessary optimality conditions for a controlled version of Moreau's sweeping process are derived. The control is a measurable ingredient of the dynamics and the constraint set is a polyhedron. The novelty…

最优化与控制 · 数学 2022-10-13 Giovanni Colombo , Paolo Gidoni

We consider the free endpoint Mayer problem for a controlled Moreau process, the control acting as a perturbation of the dynamics driven by the normal cone, and derive necessary optimality conditions of Pontryagin's Maximum Principle type.…

最优化与控制 · 数学 2016-10-31 Chems Eddine Arroud , Giovanni Colombo

Li, Chen, Tai & E. (J. Machine Learning Research, 2018) have proposed a regularization of the forward-backward sweep iteration for solving the Pontryagin maximum principle in optimal control problems. The authors prove the global…

数值分析 · 数学 2020-08-21 Xin Liu , Jason Frank

In this article we propose a method for solving unconstrained optimization problems with convex and Lipschitz continuous objective functions. By making use of the Moreau envelopes of the functions occurring in the objective, we smooth the…

最优化与控制 · 数学 2012-07-16 Radu Ioan Bot , Christopher Hendrich

The aim of this paper is to study a wide class of non-convex sweeping processes with moving constraint whose translation and deformation are represented by regulated functions, i.e., functions of not necessarily bounded variation admitting…

动力系统 · 数学 2021-01-08 Pavel Krejci , Giselle Antunes Monteiro , Vincenzo Recupero

The paper proposes and justifies a new algorithm of the proximal Newton type to solve a broad class of nonsmooth composite convex optimization problems without strong convexity assumptions. Based on advanced notions and techniques of…

最优化与控制 · 数学 2022-03-02 Boris S. Mordukhovich , Xiaoming Yuan , Shangzhi Zeng , Jin Zhang

The main goal of this paper is developing the method of discrete approximations to derive necessary optimality conditions for a class of constrained sweeping processes with nonsmooth perturbations. Optimal control problems for sweeping…

最优化与控制 · 数学 2020-05-13 Boris S. Mordukhovich , Dao Nguyen

We consider first-order methods with constant step size for minimizing locally Lipschitz coercive functions that are tame in an o-minimal structure on the real field. We prove that if the method is approximated by subgradient trajectories,…

最优化与控制 · 数学 2023-08-03 Cédric Josz , Lexiao Lai

Lipschitz continuity of algorithms, introduced by Kumabe and Yoshida (FOCS'23), measures the stability of an algorithm against small input perturbations. Algorithms with small Lipschitz continuity are desirable, as they ensure reliable…

数据结构与算法 · 计算机科学 2025-07-01 Tatsuya Gima , Soh Kumabe , Yuichi Yoshida

Building upon the technique that we developed earlier for perturbed sweeping processes with convex moving constraints and monotone vector fields (Kamenskii et al, Nonlinear Anal. Hybrid Syst. 30, 2018), the present paper establishes global…

动力系统 · 数学 2018-11-13 Lakmi Niwanthi Wadippuli , Ivan Gudoshnikov , Oleg Makarenkov

We study the convergence rate of gradient-based local search methods for solving low-rank matrix recovery problems with general objectives in both symmetric and asymmetric cases, under the assumption of the restricted isometry property.…

最优化与控制 · 数学 2022-03-10 Yingjie Bi , Haixiang Zhang , Javad Lavaei

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

We study the asymptotic stability of periodic solutions for sweeping processes defined by a polyhedron with translationally moving faces. Previous results are improved by obtaining a stronger $W^{1,2}$ convergence. Then we present an…

动力系统 · 数学 2022-10-13 Giovanni Colombo , Paolo Gidoni , Emilio Vilches

We provide improved convergence rates for constrained convex-concave min-max problems and monotone variational inequalities with higher-order smoothness. In min-max settings where the $p^{th}$-order derivatives are Lipschitz continuous, we…

最优化与控制 · 数学 2020-07-10 Brian Bullins , Kevin A. Lai

This paper aims to develop a Newton-type method to solve a class of nonconvex composite programs. In particular, the nonsmooth part is possibly nonconvex. To tackle the nonconvexity, we develop a notion of strong prox-regularity which is…

最优化与控制 · 数学 2023-03-10 Jiang Hu , Kangkang Deng , Jiayuan Wu , Quanzheng Li

We describe a procedure based on the iteration of an initial function by an appropriated operator, acting on continuous functions, in order to get a fixed point. This fixed point will be a calibrated subaction for the doubling map on the…

动力系统 · 数学 2020-10-26 Hermes H. Ferreira , Artur O. Lopes , Elismar R. Oliveira

This paper is mainly devoted to the study of controlled sweeping processes with polyhedral moving sets in Hilbert spaces. Based on a detailed analysis of truncated Hausdorff distances between moving polyhedra, we derive new existence and…

最优化与控制 · 数学 2021-12-06 René Henrion , Abderrahim Jourani , Boris S. Mordukhovich

The local Lipschitz constant of a neural network is a useful metric with applications in robustness, generalization, and fairness evaluation. We provide novel analytic results relating the local Lipschitz constant of nonsmooth vector-valued…

机器学习 · 统计学 2021-01-12 Matt Jordan , Alexandros G. Dimakis