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The matching of multiple objects (e.g. shapes or images) is a fundamental problem in vision and graphics. In order to robustly handle ambiguities, noise and repetitive patterns in challenging real-world settings, it is essential to take…

计算机视觉与模式识别 · 计算机科学 2019-03-15 Florian Bernard , Johan Thunberg , Paul Swoboda , Christian Theobalt

Phase retrieval problems involve solving linear equations, but with missing sign (or phase, for complex numbers) information. More than four decades after it was first proposed, the seminal error reduction algorithm of (Gerchberg and Saxton…

机器学习 · 统计学 2015-06-15 Praneeth Netrapalli , Prateek Jain , Sujay Sanghavi

In this paper, we consider the {\it tensor absolute value equations} (TAVEs), which is a newly introduced problem in the context of multilinear systems. Although the system of TAVEs is an interesting generalization of matrix {\it absolute…

最优化与控制 · 数学 2018-10-16 Chen Ling , Weijie Yan , Hongjin He , Liqun Qi

Iterative algorithms aimed at solving some problems are discussed. For certain problems, such as finding a common point in the intersection of a finite number of convex sets, there often exist iterative algorithms that impose very little…

最优化与控制 · 数学 2010-09-28 Y. Censor , R. Davidi , G. T. Herman

In the present study, a numerical method, perturbation-iteration algorithm (shortly PIA), have been employed to give approximate solutions of nonlinear fractional-integro differential equations (FIDEs). Comparing with the exact solution,…

数值分析 · 数学 2016-07-28 Mehmet Senol , I. T. Dolapci

We present a stationary iteration method, namely Alternating Symmetric positive definite and Scaled symmetric positive semidefinite Splitting (ASSS), for solving the system of linear equations obtained by using finite element discretization…

数值分析 · 数学 2021-09-06 Davod Khojasteh Salkuyeh

Optimal control of bilinear systems has been a well-studied subject in the area of mathematical control. However, techniques for solving emerging optimal control problems involving an ensemble of structurally identical bilinear systems are…

最优化与控制 · 数学 2016-01-14 Shuo Wang , Jr-Shin Li

A new analytic approximate technique for addressing nonlinear problems, namely the optimal perturbation iteration method, is introduced and implemented to singular initial value Lane-Emden type problems to test the effectiveness and…

经典分析与常微分方程 · 数学 2017-09-19 Necdet Bildik , Sinan Deniz

Anderson Acceleration (AA) has been widely used to solve nonlinear fixed-point problems due to its rapid convergence. This work focuses on a variant of AA in which multiple Picard iterations are performed between each AA step, referred to…

数值分析 · 数学 2025-07-15 Xue Feng , M. Paul Laiu , Thomas Strohmer

The problem of synthesizing an optimal sensor selection policy is pertinent to a variety of engineering applications ranging from event detection to autonomous navigation. We consider such a synthesis problem over an infinite time horizon…

系统与控制 · 电气工程与系统科学 2020-12-24 Michael Hibbard , Kirsten Tuggle , Takashi Tanaka

We present an accelerated algorithm for the solution of static Hamilton-Jacobi-Bellman equations related to optimal control problems. Our scheme is based on a classic policy iteration procedure, which is known to have superlinear…

最优化与控制 · 数学 2016-02-22 Alessandro Alla , Maurizio Falcone , Dante Kalise

The state-of-art seismic imaging techniques treat inversion tasks such as FWI and LSRTM as PDE-constrained optimization problems. Due to the large-scale nature, gradient-based optimization algorithms are preferred in practice to update the…

数值分析 · 数学 2020-11-16 Yunan Yang

Two inverse-free iterative methods are developed for solving Sylvester matrix equations when the spectra of the coefficient matrices are on, or near, known disjoint subintervals of the real axis. Both methods use the recently-introduced…

数值分析 · 数学 2025-07-16 Cade Ballew , Thomas Trogdon , Heather Wilber

In this paper, a class of optimization problems with nonlinear inequality constraints is discussed. Based on the ideas of sequential quadratic programming algorithm and the method of strongly sub-feasible directions, a new superlinearly…

最优化与控制 · 数学 2012-06-28 Jin-Bao Jian , Chuan-Hao Guo , Chun-Ming Tang , Yan-Qin Bai

This article presents a class of modified new modulus-based iterative methods to process the large and sparse implicit complementarity problem (ICP). By using two positive diagonal matrices, we formulate a fixed-point equation which is…

最优化与控制 · 数学 2023-03-23 Bharat kumar , Deepmala , A. K. Das

In this article, we establish a class of new accelerated modulus-based iteration methods for solving the linear complementarity problem. When the system matrix is an $H_+$-matrix, we present appropriate criteria for the convergence…

最优化与控制 · 数学 2023-05-05 Bharat Kumar , Deepmala , A. K. Das

Computer-aided analysis of security protocols heavily relies on equational theories to model cryptographic primitives. Most automated verifiers for security protocols focus on equational theories that satisfy the Finite Variant Property…

密码学与安全 · 计算机科学 2024-10-22 Vincent Cheval , Caroline Fontaine

Video frame interpolation~(VFI) algorithms have improved considerably in recent years due to unprecedented progress in both data-driven algorithms and their implementations. Recent research has introduced advanced motion estimation or novel…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Zhixiang Chi , Rasoul Mohammadi Nasiri , Zheng Liu , Yuanhao Yu , Juwei Lu , Jin Tang , Konstantinos N Plataniotis

The commonly used velocity discretization for simulating the radiative transport equation (RTE) is the discrete ordinates method (DOM). One of the long-standing drawbacks of DOM is the phenomenon known as the ray effect. Due to the high…

数值分析 · 数学 2025-02-24 Jingyi Fu , Lei Li , Min Tang

In this paper, we identify two different sets of problems. The first covers the problems that the iterative proportional fitting (IPF) algorithm was developed to solve. These concern completing a population table by using a sample. The…

综合经济学 · 经济学 2023-03-13 Anna Naszodi