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This paper analyzes a special instance of nonsymmetric algebraic matrix Riccati equations arising from transport theory. Traditional approaches for finding the minimal nonnegative solution of the matrix Riccati equations are based on the…

数值分析 · 数学 2011-09-26 Chun-Yueh Chiang , Matthew M. Lin

The method of alternating projections is a classical tool to solve feasibility problems. Here we prove local convergence of alternating projections between subanalytic sets $A,B$ under a mild regularity hypothesis on one of the sets. We…

最优化与控制 · 数学 2014-09-30 Dominikus Noll , Aude Rondepierre

In this paper, we propose the concept of accelerated convergence that has originally been developed to speed up the convergence of numerical methods for extremum seeking (ES) loops. We demonstrate how the dynamics of ES loops may be…

系统与控制 · 电气工程与系统科学 2022-12-15 Jan-Henrik Metsch , Jonathan Neuhauser , Jerome Jouffroy , Taous-Meriem Laleg-Kirati , Johann Reger

Many techniques have been proposed to speedup the performance of classic Hough Transform. These techniques are primarily based on converting the voting procedure to a hierarchy based voting method. These methods use approximate…

计算机视觉与模式识别 · 计算机科学 2010-07-06 Chandan Singh , Nitin Bhatia

Recent studies suggest that gradient-based methods applied to relaxed box-constrained Quadratic Unconstrained Binary Optimization (QUBO) formulations can outperform classical heuristics in some large-scale regimes, often relying on heavy…

离散数学 · 计算机科学 2026-05-11 Yongliang Sun , Ismail Alkhouri , Cheng-Han Huang , Alvaro Velasquez , Susmit Jha , Rongrong Wang

We present quadratically convergent algorithms to compute the extremal value of a real parameter for which a given rational transfer function of a linear time-invariant system is passive. This problem is formulated for both continuous-time…

最优化与控制 · 数学 2022-05-26 Tim Mitchell , Paul Van Dooren

This article is devoted to one particular case of using universal accelerated proximal envelopes to obtain computationally efficient accelerated versions of methods used to solve various optimization problem setups. In this paper, we…

最优化与控制 · 数学 2021-01-14 Dmitry Pasechnyuk , Anton Anikin , Vladislav Matyukhin

Numerous approximation algorithms for problems on unit disk graphs have been proposed in the literature, exhibiting a sharp trade-off between running times and approximation ratios. We introduce a variation of the known shifting strategy…

数据结构与算法 · 计算机科学 2016-11-08 Guilherme D. da Fonseca , Vinícius G. Pereira de Sá , Celina M. H. de Figueiredo

This paper deals with speeding up the convergence of a class of two-step iterative methods for solving linear systems of equations. To implement the acceleration technique, the residual norm associated with computed approximations for each…

数值分析 · 数学 2024-04-24 Fatemeh P. A. Beik , Michele Benzi , Mehdi Najafi-Kalyani

A zero-finding technique for solving nonlinear equations more efficiently than they usually are with traditional iterative methods in which the order of convergence is improved is presented. The key idea in deriving this procedure is to…

数值分析 · 数学 2011-06-07 Miquel Grau-Sánchez , José Luis Díaz-Barrero

This study proposes a novel method for simplifying inequality constraints in Higher-Order Binary Optimization (HOBO) formulations. The proposed method addresses challenges associated with Quadratic Unconstrained Binary Optimization (QUBO)…

最优化与控制 · 数学 2025-01-22 Yuichiro Minato

Results on the rational approximation of functions containing singularities are presented. We build further on the ''lightning method'', recently proposed by Trefethen and collaborators, based on exponentially clustering poles close to the…

数值分析 · 数学 2023-10-10 Astrid Herremans , Daan Huybrechs , Lloyd N. Trefethen

In this paper, we formulate a new \emph{multiple-correction method}. The goal is to accelerate the rate of convergence. In particular, we construct some sequences to approximate the Euler-Mascheroni and Landau constants, which are faster…

数论 · 数学 2014-09-04 Xiaodong Cao , Hongmin Xu , Xu You

Recent advances in optimization theory have shown that smooth strongly convex finite sums can be minimized faster than by treating them as a black box "batch" problem. In this work we introduce a new method in this class with a theoretical…

机器学习 · 计算机科学 2014-07-11 Aaron J. Defazio , Tibério S. Caetano , Justin Domke

Historically speaking, it is hard to balance the global and local efficiency of second-order optimization algorithms. For instance, the classical Newton's method possesses excellent local convergence but lacks global guarantees, often…

最优化与控制 · 数学 2025-11-11 Yuntian Jiang , Chuwen Zhang , Bo Jiang , Yinyu Ye

In recent years, accelerated extra-gradient methods have attracted much attention by researchers, for solving monotone inclusion problems. A limitation of most current accelerated extra-gradient methods lies in their direct utilization of…

最优化与控制 · 数学 2025-03-24 Ya-xiang Yuan , Yi Zhang

Mixed discrete-continuous optimization is central to engineering design, where discrete choices interact with continuous fields. These problems are difficult due to high-dimensional, complex search spaces. To tackle them, Quantum Annealing…

计算工程、金融与科学 · 计算机科学 2026-03-19 Fabian Key , Lukas Freinberger , Mayu Muramatsu , Norbert Hosters

In this study, we give an extension of Montanaro's arXiv/archive:1504.06987 quantum Monte Carlo method, tailored for computing expected values of random variables that exhibit infinite variance. This addresses a challenge in analyzing…

量子物理 · 物理学 2024-03-08 Jose Blanchet , Mario Szegedy , Guanyang Wang

We propose a novel direct transcription and solution method for solving nonlinear, continuous-time dynamic optimization problems. Instead of forcing the dynamic constraints to be satisfied only at a selected number of points as in direct…

最优化与控制 · 数学 2022-01-25 Yuanbo Nie , Eric C. Kerrigan

For every couple (p;q) of strictly positive integers, the `` alternate congruo-harmonic '' series parametrized by (p;q), whose general term is (-1)^k/(pk+q), converges infra-linearly and very slowly. On the basis of a generalized continued…

经典分析与常微分方程 · 数学 2022-07-06 David Pouvreau
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