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A new efficient algorithm is proposed for factoring polynomials over an algebraic extension field. The extension field is defined by a polynomial ring modulo a maximal ideal. If the maximal ideal is given by its Groebner basis, no extra…

符号计算 · 计算机科学 2010-10-04 Yao Sun , Dingkang Wang

To infer a function value on a specific point $x$, it is essential to assign higher weights to the points closer to $x$, which is called local polynomial / multivariable regression. In many practical cases, a limited sample size may ruin…

机器学习 · 统计学 2024-09-30 Yanwu Gu , Dong Xia

In this article, we develop and investigate a new classifier based on features extracted using spatial depth. Our construction is based on fitting a generalized additive model to the posterior probabilities of the different competing…

统计方法学 · 统计学 2015-04-16 Subhajit Dutta , Anil K. Ghosh

Localization is a critical aspect of mobile robotics, enabling robots to navigate their environment efficiently and avoid obstacles. Current probabilistic localization methods, such as the Adaptive-Monte Carlo localization (AMCL) algorithm,…

机器人学 · 计算机科学 2025-05-02 Unai Antero , Basilio Sierra , Jon Oñativia , Alejandra Ruiz , Eneko Osaba

This paper studies the hierarchy of local minimums of a polynomial in the space. For this purpose, we first compute H-minimums, for which the first and second order optimality conditions are satisfied. To compute each H-minimum, we…

最优化与控制 · 数学 2014-11-26 Jiawang Nie

Let $X$ be a ringed space together with the data $M$ of a set $M_x$ of prime ideals of $\O_{X,x}$ for each point $x \in X$. We introduce the localization of $(X,M)$, which is a locally ringed space $Y$ and a map of ringed spaces $Y \to X$…

代数几何 · 数学 2011-03-14 W. D. Gillam

A simple method to generate a two-dimensional binary grid pattern, which allows for absolute and accurate self-location in a finite planar region, is proposed. The pattern encodes position information in a local way so that reading a small…

信息论 · 计算机科学 2011-12-20 Alfred M. Bruckstein , Tuvi Etzion , Raja Giryes , Noam Gordon , Robert J. Holt , Doron Shuldiner

We propose and evaluate an iterative localization mechanism employing Bayesian inference to estimate the position of a target using received signal strength measurements. The probability density functions of the target's coordinates are…

应用统计 · 统计学 2020-03-05 Henrique Hilleshein , Carlos H. M. de Lima , Hirley Alves , Matti Latva-aho

Despite significant algorithmic advances in vision-based positioning, a comprehensive probabilistic framework to study its performance has remained unexplored. The main objective of this paper is to develop such a framework using ideas from…

信息论 · 计算机科学 2024-09-17 Haozhou Hu , Harpreet S. Dhillon , R. Michael Buehrer

We prove that for any operator $T$ on bi--parameter BMO the identity factors through $T$ or $I - T$. Bourgain's localization method provides the conceptual framework of our proof. It consists in replacing the factorization problem on the…

泛函分析 · 数学 2018-10-03 Richard Lechner , Paul F. X. Müller

Globally localizing a mobile robot in a known map is often a foundation for enabling robots to navigate and operate autonomously. In indoor environments, traditional Monte Carlo localization based on occupancy grid maps is considered the…

机器人学 · 计算机科学 2025-04-01 Haofei Kuang , Yue Pan , Xingguang Zhong , Louis Wiesmann , Jens Behley , Cyrill Stachniss

Local Fourier analysis is a strong and well-established tool for analyzing the convergence of numerical methods for partial differential equations. The key idea of local Fourier analysis is to represent the occurring functions in terms of a…

数值分析 · 数学 2015-03-12 Stefan Takacs

Likelihood-free methods are an essential tool for performing inference for implicit models which can be simulated from, but for which the corresponding likelihood is intractable. However, common likelihood-free methods do not scale well to…

统计方法学 · 统计学 2022-07-15 Christopher Drovandi , David J Nott , David T Frazier

This paper presents a novel multi-scale method for elliptic partial differential equations with arbitrarily rough coefficients. In the spirit of numerical homogenization, the method constructs problem-adapted ansatz spaces with uniform…

数值分析 · 数学 2024-08-05 Philip Freese , Moritz Hauck , Tim Keil , Daniel Peterseim

In this paper we propose a fast algorithm for trivariate interpolation, which is based on the partition of unity method for constructing a global interpolant by blending local radial basis function interpolants and using locally supported…

数值分析 · 数学 2015-10-20 Roberto Cavoretto , Alessandra De Rossi

A promising approach to accurate positioning of robots is ground texture based localization. It is based on the observation that visual features of ground images enable fingerprint-like place recognition. We tackle the issue of efficient…

计算机视觉与模式识别 · 计算机科学 2021-09-06 Jan Fabian Schmid , Stephan F. Simon , Rudolf Mester

In this article we show and implement a simple and effcient method to strictly locate eigenvectors and eigenvalues of a given matrix, based on the modified cone condition. As a consequence we can also effectively localize zeros of complex…

数值分析 · 计算机科学 2012-10-31 Łukasz Struski , Jacek Tabor

We present an algorithm to compute a primary decomposition of an ideal in a polynomial ring over the integers. For this purpose we use algorithms for primary decomposition in polynomial rings over the rationals resp. over finite fields, and…

交换代数 · 数学 2011-08-10 Gerhard Pfister , Afshan Sadiq , Stefan Steidel

The aim of this paper is to study mixed multiplier ideals associated to a tuple of ideals in a two-dimensional local ring with a rational singularity. We are interested in the partition of the real positive orthant given by the regions…

We prove that the maximum independent set approximation problem with polylogarithmic approximation factor is P-SLOCAL-complete. Thus an efficient algorithm for the maximum independent set approximation in the LOCAL model implies efficient…

数据结构与算法 · 计算机科学 2019-12-24 Yannic Maus