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相关论文: Determinantal computation of minimal local GADs

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MGARD (MultiGrid Adaptive Reduction of Data) is an algorithm for compressing and refactoring scientific data, based on the theory of multigrid methods. The core algorithm is built around stable multilevel decompositions of conforming…

数值分析 · 数学 2024-12-16 Viktor Reshniak , Evan Ferguson , Qian Gong , Nicolas Vidal , Rick Archibald , Scott Klasky

We obtain an explicit formula for the characteristic polynomial of the local monodromy of $A$-hypergeometric functions with respect to small loops around a coordinate hyperplane $x_i =0$. This formula is similar to the one obtained by Ando,…

代数几何 · 数学 2019-07-15 María-Cruz Fernández-Fernández

This paper studies separating invariants: mappings on $D$ dimensional domains which are invariant to an appropriate group action, and which separate orbits. The motivation for this study comes from the usefulness of separating invariants in…

机器学习 · 计算机科学 2023-11-22 Nadav Dym , Steven J. Gortler

We study the computation of local approximations of invariant manifolds of parabolic fixed points and parabolic periodic orbits of periodic vector fields. If the dimension of these manifolds is two or greater, in general, it is not possible…

动力系统 · 数学 2016-03-09 Inmaculada Baldomá , Ernest Fontich , Pau Martín

Ordinary differential equation (ODE)-based diffusion models enable deterministic image synthesis, establishing a reversible mapping suitable for generative steganography. While prevailing methods strictly adhere to a standard normal prior,…

密码学与安全 · 计算机科学 2025-12-16 Yuhua Xu , Wei Sun , Chengpei Tang , Jiaxing Lu , Jingying Zhou , Chen Gu

The Minimum Dominating Set (MDS) problem is not only one of the most fundamental problems in distributed computing, it is also one of the most challenging ones. While it is well-known that minimum dominating sets cannot be approximated…

分布式、并行与集群计算 · 计算机科学 2016-02-15 Saeed Akhoondian Amiri , Stefan Schmid , Sebastian Siebertz

In this paper, we propose a new covering technique localized for the trajectories of SGD. This localization provides an algorithm-specific complexity measured by the covering number, which can have dimension-independent cardinality in…

机器学习 · 统计学 2022-09-20 Sejun Park , Umut Şimşekli , Murat A. Erdogdu

An output-polynomial algorithm for the listing of minimal dominating sets in graphs is a challenging open problem and is known to be equivalent to the well-known Transversal problem which asks for an output-polynomial algorithm for listing…

数据结构与算法 · 计算机科学 2014-07-09 Mamadou Moustapha Kanté , Vincent Limouzy , Arnaud Mary , Lhouari Nourine , Takeaki Uno

The paper deals with a construction of a separating system of rational invariants for finite dimensional generic algebras. In the process of dealing an approach to a rough classification of finite dimensional algebras is offered by…

环与代数 · 数学 2018-01-17 U. Bekbaev

This article makes the key observation that when using cylindrical algebraic decomposition (CAD) to solve a problem with respect to a set of polynomials, it is not always the signs of those polynomials that are of paramount importance but…

符号计算 · 计算机科学 2013-07-10 Russell Bradford , James H. Davenport , Matthew England , Scott McCallum , David Wilson

We show how to compute a 20-approximation of a minimum dominating set in a planar graph in a constant number of rounds in the LOCAL model of distributed computing. This improves on the previously best known approximation factor of 52, which…

分布式、并行与集群计算 · 计算机科学 2021-11-30 Ozan Heydt , Sebastian Siebertz , Alexandre Vigny

We propose a gradient descent method for solving optimization problems arising in settings of tropical geometry - a variant of algebraic geometry that has attracted growing interest in applications such as computational biology, economics,…

最优化与控制 · 数学 2025-11-17 Roan Talbut , Anthea Monod

Variational inference methods for latent variable statistical models have gained popularity because they are relatively fast, can handle large data sets, and have deterministic convergence guarantees. However, in practice it is unclear…

统计方法学 · 统计学 2017-03-22 Hachem Saddiki , Andrew C. Trapp , Patrick Flaherty

This paper considers the problem of minimizing a differentiable function with locally Lipschitz continuous gradient on the algebraic variety of real matrices of upper-bounded rank. This problem is known to enable the formulation of various…

最优化与控制 · 数学 2026-03-13 Guillaume Olikier , Kyle A. Gallivan , P. -A. Absil

We develop a new tool, namely polynomial and linear algebraic methods, for studying systems of word equations. We illustrate its usefulness by giving essentially simpler proofs of several hard problems. At the same time we prove extensions…

组合数学 · 数学 2015-02-10 Aleksi Saarela

Implicit regularization refers to the tendency of local search algorithms to converge to low-dimensional solutions, even when such structures are not explicitly enforced. Despite its ubiquity, the mechanism underlying this behavior remains…

机器学习 · 计算机科学 2025-12-10 Jianhao Ma , Geyu Liang , Salar Fattahi

This paper theoretically reanalyzes the convergence of the mini-batch stochastic gradient descent (SGD) for a structured minimization problem involving a finite-sum function with its gradient being stochastically approximated, and an…

最优化与控制 · 数学 2026-04-07 Runze Li , Jintao Xu , Wenxun Xing

In the current work, the author present a symbolic algorithm for finding the determinant of any general nonsingular cyclic heptadiagonal matrices and inverse of anti-cyclic heptadiagonal matrices. The algorithms are mainly based on the work…

符号计算 · 计算机科学 2015-03-17 A. A. Karawia

The identification of repeating patterns in discrete grids is rudimentary within symbolic reasoning, algorithm synthesis and structural optimization across diverse computational domains. Although statistical approaches targeting noisy data…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Sushish Baral , Paulo Garcia , Warisa Sritriratanarak

We show that there is a deterministic local algorithm (constant-time distributed graph algorithm) that finds a 5-approximation of a minimum dominating set on outerplanar graphs. We show there is no such algorithm that finds a…

分布式、并行与集群计算 · 计算机科学 2022-11-22 Marthe Bonamy , Linda Cook , Carla Groenland , Alexandra Wesolek
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