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Solving inverse problems with iterative algorithms is popular, especially for large data. Due to time constraints, the number of possible iterations is usually limited, potentially affecting the achievable accuracy. Given an error one is…

数值分析 · 计算机科学 2018-02-16 Raja Giryes , Yonina C. Eldar , Alex M. Bronstein , Guillermo Sapiro

The Parareal algorithm is used to solve time-dependent problems considering multiple solvers that may work in parallel. The key feature is a initial rough approximation of the solution that is iteratively refined by the parallel solvers. We…

系统与控制 · 计算机科学 2014-02-18 Loïc Michel

Coded polynomial aggregation (CPA) enables the master to directly recover a weighted aggregation of polynomial evaluations without individually decoding each term, thereby reducing the number of required worker responses. In this paper, we…

信息论 · 计算机科学 2026-02-04 Xi Zhong , Jörg Kliewer , Mingyue Ji

Global Average Pooling (GAP) [4] has been used previously to generate class activation for image classification tasks. The motivation behind SIMILARnet comes from the fact that the convolutional filters possess position information of the…

计算机视觉与模式识别 · 计算机科学 2017-11-09 Arna Ghosh , Biswarup Bhattacharya , Somnath Basu Roy Chowdhury

In this work, we have considered the Laguerre polynomial. This polynomial has been studied in several branches of theoretical physics and applied Mathematics. J. K. Prajapat at.al derived condition so that Laguerre polynomial satisfy…

复变函数 · 数学 2026-05-22 Anish Kumar

We formulate, for continuous-time dynamical systems, a sufficient condition to be a gradient-like system, i.e. that all bounded trajectories approach stationary points and therefore that periodic orbits, chaotic attractors, etc. do not…

混沌动力学 · 物理学 2024-01-22 Jeremy P Parker

In deterministic compressive sensing, one constructs sampling matrices that recover sparse signals from highly incomplete measurements. However, the so-called square-root bottleneck limits the usefulness of such matrices, as they are only…

信息论 · 计算机科学 2019-09-26 Kung-Ching Lin

Univariate polynomial root-finding has been studied for four millennia and very intensively in the last decades. Our new near-optimal root-finders approximate all zeros of a polynomial p almost as fast as one accesses its coefficients with…

数值分析 · 计算机科学 2024-07-02 Victor Y. Pan

The RFMP is an iterative regularization method for a class of linear inverse problems. It has proved to be applicable to problems which occur, for example, in the geosciences. In the early publications [Fischer2011] and [FischerMichel2012],…

数值分析 · 数学 2021-12-23 Prof. Dr. Volker Michel , Sarah Orzlowski

In this paper rational solutions of the fifth Painlev\'e equation are discussed. There are two classes of rational solutions of the fifth Painlev\'e equation, one expressed in terms of the generalised Laguerre polynomials, which are the…

可精确求解与可积系统 · 物理学 2024-01-15 Peter A. Clarkson , Clare Dunning

Learning-based planners leveraging Graph Neural Networks can learn search guidance applicable to large search spaces, yet their potential to address symmetries remains largely unexplored. In this paper, we introduce a graph representation…

人工智能 · 计算机科学 2025-04-29 Yingbin Bai , Sylvie Thiebaux , Felipe Trevizan

The graph isomorphism problem has a long history in mathematics and computer science, with applications in computational chemistry and biology, and it is believed to be neither solvable in polynomial time nor NP-complete. E. Luks proposed…

离散数学 · 计算机科学 2012-09-06 Adria Alcala Mena , Francesc Rossello

There has been much recent interest in hierarchies of progressively stronger convexifications of polynomial optimisation problems (POP). These often converge to the global optimum of the POP, asymptotically, but prove challenging to solve…

最优化与控制 · 数学 2019-09-24 Wann-Jiun Ma , Jakub Marecek , Martin Mevissen

In this paper we introduce a version of irreducible Laguerre polynomials in two variables and prove for it a congruence property, which is similar to the one obtained by Carlitz for the classical Laguerre polynomials in one variable.

经典分析与常微分方程 · 数学 2014-08-11 Nikolai A. Krylov , Zhangyuan Li

The problem of characterizing a real polynomial $f$ as a sum of squares of polynomials on a real algebraic variety $V$ dates back to the pioneering work of Hilbert in [Mathematische Annalen 32.3 (1888): 342-350]. In this paper, we…

代数几何 · 数学 2023-03-10 Ngoc Hoang Anh Mai , Victor Magron

We consider the problem of approximating all real roots of a square-free polynomial $f$. Given isolating intervals, our algorithm refines each of them to a width of $2^{-L}$ or less, that is, each of the roots is approximated to $L$ bits…

符号计算 · 计算机科学 2015-03-19 Michael Kerber , Michael Sagraloff

Lawson's iteration is a classical and effective method for solving the linear (polynomial) minimax approximation problem in the complex plane. Extension of Lawson's iteration for the rational minimax approximation problem with both…

数值分析 · 数学 2025-08-08 Lei-Hong Zhang , Shanheng Han

We study a well known noisy model of the graph isomorphism problem. In this model, the goal is to perfectly recover the vertex correspondence between two edge-correlated Erd\H{o}s-R\'{e}nyi random graphs, with an initial seed set of…

机器学习 · 计算机科学 2018-07-27 Elchanan Mossel , Jiaming Xu

General factors are a generalization of matchings. Given a graph $G$ with a set $\pi(v)$ of feasible degrees, called a degree constraint, for each vertex $v$ of $G$, the general factor problem is to find a (spanning) subgraph $F$ of $G$…

离散数学 · 计算机科学 2024-05-24 Shuai Shao , Stanislav Živný

Stochastic variance-reduced algorithms such as Stochastic Average Gradient (SAG) and SAGA, and their deterministic counterparts like the Incremental Aggregated Gradient (IAG) method, have been extensively studied in large-scale machine…

机器学习 · 计算机科学 2026-05-22 Feng Zhu , Robert W. Heath , Aritra Mitra