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We present a novel deep learning approach to approximate the solution of large, sparse, symmetric, positive-definite linear systems of equations. These systems arise from many problems in applied science, e.g., in numerical methods for…

机器学习 · 计算机科学 2022-10-04 Ayano Kaneda , Osman Akar , Jingyu Chen , Victoria Kala , David Hyde , Joseph Teran

The exact complexity of geometric cuts and bisections is the longstanding open problem including even the dimension one. In this paper, we resolve this problem for dimension one (the real line) by designing an exact polynomial time…

数据结构与算法 · 计算机科学 2012-07-05 Marek Karpinski , Andrzej Lingas , Dzmitry Sledneu

We present a certified algorithm based on subdivision for computing an isotopic approximation to any number of curves in the plane. Our algorithm is based on the certified curve approximation algorithm of Plantinga and Vegter. The main…

计算几何 · 计算机科学 2024-07-26 Michael Burr , Michael Byrd

We present a certified algorithm based on subdivision for computing an isotopic approximation to any number of curves in the plane. Our algorithm is based on the certified curve approximation algorithm of Plantinga and Vegter. The main…

计算几何 · 计算机科学 2024-07-29 Michael Burr , Michael Byrd

Composite minimization involves a collection of smooth functions which are aggregated in a nonsmooth manner. In the convex setting, we design an algorithm by linearizing each smooth component in accordance with its main curvature. The…

最优化与控制 · 数学 2019-03-26 Jérôme Bolte , Zheng Chen , Edouard Pauwels

We present an efficient, parallel, constrained optimization technique for approximating CAD curves with super-convergent rates. The optimization function is a disparity measure in terms of a piece-wise polynomial approximation and a curve…

数值分析 · 数学 2022-12-05 Julia Docampo Sánchez

This paper considers the robust phase retrieval problem, which can be cast as a nonsmooth and nonconvex optimization problem. We propose a new inexact proximal linear algorithm with the subproblem being solved inexactly. Our contributions…

最优化与控制 · 数学 2024-02-12 Zhong Zheng , Shiqian Ma , Lingzhou Xue

We outline a new approach for solving optimization problems which enforce triangle inequalities on output variables. We refer to this as metric-constrained optimization, and give several examples where problems of this form arise in machine…

数值分析 · 计算机科学 2018-06-06 Nate Veldt , David Gleich , Anthony Wirth , James Saunderson

In this paper, a multi-parameterized proximal point algorithm combining with a relaxation step is developed for solving convex minimization problem subject to linear constraints. We show its global convergence and sublinear convergence rate…

数值分析 · 数学 2019-07-11 Jianchao Bai , Ke Guo , Xiaokai Chang

This paper considers the multi-parametric linear complementarity problem (pLCP) with sufficient matrices. The main result is an algorithm to find a polyhedral decomposition of the set of feasible parameters and to construct a piecewise…

最优化与控制 · 数学 2008-07-16 Sebastiano Columbano , Komei Fukuda , Colin Jones

We propose a combinatorial method for computing explicit solutions to multi-parametric quadratic programs, which can be used to compute explicit control laws for linear model predictive control. In contrast to classical methods, which are…

最优化与控制 · 数学 2024-04-09 Daniel Arnström , Daniel Axehill

The Matching Augmentation Problem (MAP) has recently received significant attention as an important step towards better approximation algorithms for finding cheap $2$-edge connected subgraphs. This has culminated in a…

数据结构与算法 · 计算机科学 2022-08-25 Etienne Bamas , Marina Drygala , Ola Svensson

We consider continuous linear programs over a continuous finite time horizon $T$, with a constant coefficient matrix, linear right hand side functions and linear cost coefficient functions, where we search for optimal solutions in the space…

最优化与控制 · 数学 2019-05-02 Evgeny Shindin , Gideon Weiss

The paper considers the minimization of a separable convex function subject to linear ascending constraints. The problem arises as the core optimization in several resource allocation scenarios, and is a special case of an optimization of a…

最优化与控制 · 数学 2016-08-30 Akhil P T , Rajesh Sundaresan

This work studies a class of non-smooth decentralized multi-agent optimization problems where the agents aim at minimizing a sum of local strongly-convex smooth components plus a common non-smooth term. We propose a general primal-dual…

最优化与控制 · 数学 2020-07-13 Sulaiman A. Alghunaim , Ernest K. Ryu , Kun Yuan , Ali H. Sayed

Parametric linear programming is a central operation for polyhedral computations, as well as in certain control applications.Here we propose a task-based scheme for parallelizing it, with quasi-linear speedup over large problems.This type…

计算几何 · 计算机科学 2020-10-01 Camille Coti , David Monniaux , Hang Yu

We present a geometric multilevel optimization approach that smoothly incorporates box constraints. Given a box constrained optimization problem, we consider a hierarchy of models with varying discretization levels. Finer models are…

最优化与控制 · 数学 2024-04-23 Sebastian Müller , Stefania Petra , Matthias Zisler

We give sublinear-time approximation algorithms for some optimization problems arising in machine learning, such as training linear classifiers and finding minimum enclosing balls. Our algorithms can be extended to some kernelized versions…

机器学习 · 计算机科学 2010-10-22 Kenneth L. Clarkson , Elad Hazan , David P. Woodruff

A linear program with linear complementarity constraints (LPCC) requires the minimization of a linear objective over a set of linear constraints together with additional linear complementarity constraints. This class has emerged as a…

最优化与控制 · 数学 2018-02-09 Bin Yu , John E. Mitchell , Jong-Shi Pang

Generalizing both mixed-integer linear optimization and convex optimization, mixed-integer convex optimization possesses broad modeling power but has seen relatively few advances in general-purpose solvers in recent years. In this paper, we…

最优化与控制 · 数学 2017-09-18 Miles Lubin , Emre Yamangil , Russell Bent , Juan Pablo Vielma