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One of my recent papers transforms an NP-Complete problem into the question of whether or not a feasible real solution exists to some Linear Program. The unique feature of this Linear Program is that though there is no explicit bound on the…

计算复杂性 · 计算机科学 2010-03-08 Deepak Ponvel Chermakani

In this work we consider an iterative method for solving the quasi-convex feasibility problem. We firstly introduce the so-called star subgradient projection operator and present some useful properties. We subsequently obtain a convergence…

最优化与控制 · 数学 2020-01-28 Nimit Nimana , Narin Petrot

Convex optimization encompasses a wide range of optimization problems that contain many efficiently solvable subclasses. Interior point methods are currently the state-of-the-art approach for solving such problems, particularly effective…

最优化与控制 · 数学 2025-03-28 Andreas Klingler , Tim Netzer

We focus on the optimization problem with smooth, possibly nonconvex objectives and a convex constraint set for which the Euclidean projection operation is practically available. Focusing on this setting, we carry out a general convergence…

最优化与控制 · 数学 2026-04-23 Matteo Lapucci , Giampaolo Liuzzi , Stefano Lucidi , Marco Sciandrone , Diego Scuppa

This paper is devoted to the theoretical and numerical investigation of an augmented Lagrangian method for the solution of optimization problems with geometric constraints. Specifically, we study situations where parts of the constraints…

最优化与控制 · 数学 2022-04-20 Xiaoxi Jia , Christian Kanzow , Patrick Mehlitz , Gerd Wachsmuth

This paper presents an iterative scheme that converges to the solution of a pseudo-monotone variational inequality problem in the setting of $\mathbb{R}^{n}$. Traditional methods often require projections onto the feasible set…

最优化与控制 · 数学 2025-09-09 Watanjeet Singh , Sumit Chandok

This paper combines two ingredients in order to get a rather surprising result on one of the most studied, elegant and powerful tools for solving convex feasibility problems, the method of alternating projections (MAP). Going back to names…

最优化与控制 · 数学 2021-11-11 Roger Behling , Yunier Bello-Cruz , Luiz-Rafael Santos

Shape-constrained inference has wide applicability in bioassay, medicine, economics, risk assessment, and many other fields. Although there has been a large amount of work on monotone-constrained univariate curve estimation, multivariate…

统计方法学 · 统计学 2019-11-19 Lizhen Lin , Brian St. Thomas , Walter W. Piegorsch , James Scott , Carlos Carvalho

The convergence of the algorithm for solving convex feasibility problem is studied by the method of sequential averaged and relaxed projections. Some results of H. H. Bauschke and J. M. Borwein are generalized by introducing new methods.…

度量几何 · 数学 2007-09-18 Ryszard Szwarc

In order to nd a non-negative solution to a system of inequalities, the corresponding dual problem is composed, which has a suitable unity basic matrix. In such a formulation, the objective function is replaced by set of constraints based…

最优化与控制 · 数学 2023-05-09 Jaan Übi , Evald Übi

Random projection techniques based on Johnson-Lindenstrauss lemma are used for randomly aggregating the constraints or variables of optimization problems while approximately preserving their optimal values, that leads to smaller-scale…

最优化与控制 · 数学 2021-07-13 Terunari Fuji , Pierre-Louis Poirion , Akiko Takeda

Variable projection methods prove highly efficient in solving separable nonlinear least squares problems by transforming them into a reduced nonlinear least squares problem, typically solvable via the Gauss-Newton method. When solving…

数值分析 · 数学 2024-02-14 Malena I. Español , Gabriela Jeronimo

We prove several stability and volume difference inequalities for projections of convex bodies and apply them to prove a hyperplane inequality for surface area of projection bodies.

度量几何 · 数学 2015-06-16 Alexander Koldobsky

In this paper, we introduce and study the Parallel Polyhedral Projection Method (3PM) and the Approximate Parallel Polyhedral Projection Method (A3PM) for finding a point in the intersection of finitely many closed convex sets. Each…

最优化与控制 · 数学 2025-06-27 Pablo Barros , Roger Behling , Vincent Guigues

We introduce a new technique for solving uni-parametric versions of linear programs, convex quadratic programs, and linear complementarity problems in which a single parameter is permitted to be present in any of the input data. We…

最优化与控制 · 数学 2022-03-25 Nathan Adelgren

The article proposes an n-dimensional mathematical model of the visual representation of a linear programming problem. This model makes it possible to use artificial neural networks to solve multidimensional linear optimization problems,…

最优化与控制 · 数学 2022-08-18 Nikolay A. Olkhovsky , Leonid B. Sokolinsky

A novel method has been introduced to solve a point inclusion in a polygon problem. The method is applicable to convex as well as non-convex polygons which are not self-intersecting. The introduced method is independent of rounding off…

计算几何 · 计算机科学 2020-12-10 Karim M. Ali , Amr Guaily

In a normed space setting, this paper studies the conditions under which the projected solutions to a quasi equilibrium problem with non-self constraint map exist. Our approach is based on an iterative algorithm which gives rise to a…

最优化与控制 · 数学 2023-09-06 Monica Bianchi , Enrico Miglierina , Maede Ramazannejad

A powerful data transformation method named guided projections is proposed creating new possibilities to reveal the group structure of high-dimensional data in the presence of noise variables. Utilising projections onto a space spanned by a…

统计方法学 · 统计学 2017-02-23 Thomas Ortner , Peter Filzmoser , Maia Zaharieva , Christian Breiteneder , Sarka Brodinova

The problem of finding a vector with the fewest nonzero elements that satisfies an underdetermined system of linear equations is an NP-complete problem that is typically solved numerically via convex heuristics or nicely-behaved nonconvex…

最优化与控制 · 数学 2018-02-07 Robert Hesse , D. Russell Luke , Patrick Neumann