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Efficiently solving sparse linear algebraic equations is an important research topic of numerical simulation. Commonly used approaches include direct methods and iterative methods. Compared with the direct methods, the iterative methods…

数值分析 · 数学 2023-10-11 Haifeng Zou , Xiaowen Xu , Chen-Song Zhang

We introduce a new type of Krasnoselskii's result. Using a simple differentiability condition, we relax the nonexpansive condition in Krasnoselskii's theorem. More clearly, we analyze the convergence of the sequence…

泛函分析 · 数学 2022-06-07 Hassan Khandani , Farshid Khojasteh

An inductive inference system for proving validity of formulas in the initial algebra $T_{\mathcal{E}}$ of an order-sorted equational theory $\mathcal{E}$ is presented. It has 20 inference rules, but only 9 of them require user interaction;…

计算机科学中的逻辑 · 计算机科学 2024-05-07 Jose Meseguer

In this paper, an inexact Newton method for solving real-valued nonlinear eigenvalue problems with eigenvector dependency (NEPv) is introduced that is able to solve the problem on a matrix level. Our main contribution is to derive a variant…

数值分析 · 数学 2024-09-04 Tom Werner

Many machine learning models involve solving optimization problems. Thus, it is important to deal with a large-scale optimization problem in big data applications. Recently, subsampled Newton methods have emerged to attract much attention…

数值分析 · 计算机科学 2020-03-24 Haishan Ye , Luo Luo , Zhihua Zhang

We study two techniques to obtain new families of classical and general Dual-Feasible Functions: A conversion from minimal Gomory--Johnson functions; and computer-based search using polyhedral computation and an automatic maximality and…

最优化与控制 · 数学 2018-12-04 Matthias Köppe , Jiawei Wang

Our main contribution here is the discovery of a new family of standard Young tableaux $ {\cal T}^k_n$ which are in bijection with the family ${\cal D}_{m,n}$ of Rational Dyck paths for $m=k\times n\pm 1$ (the so called "Fuss" case). Using…

组合数学 · 数学 2018-07-20 Adriano M. Garsia , Guoce Xin

Given the emergent reasoning abilities of large language models, information retrieval is becoming more complex. Rather than just retrieve a document, modern information retrieval systems advertise that they can synthesize an answer based…

信息检索 · 计算机科学 2024-02-29 Gregory Coppola

Natural numbers are represented by Grzegorczyk functions. The representation is implicit in the technique of H. Friedman. An iterated base-shift in the representation with subtracting 1 yields a sequence, Grzegorczyk sequence. It is shown…

逻辑 · 数学 2018-11-27 Toshiyasu Arai

Gaussian processes are a powerful framework for uncertainty-aware function approximation and sequential decision-making. Unfortunately, their classical formulation does not scale gracefully to large amounts of data and modern hardware for…

机器学习 · 计算机科学 2025-07-10 Jihao Andreas Lin

In convex optimization, there is an {\em acceleration} phenomenon in which we can boost the convergence rate of certain gradient-based algorithms. We can observe this phenomenon in Nesterov's accelerated gradient descent, accelerated mirror…

最优化与控制 · 数学 2015-09-14 Andre Wibisono , Ashia C. Wilson

We derive families of Newton-like inequalities involving the elementary symmetric functions of sets of self-conjugate complex numbers in the right half-plane. These are the first known inequalities of this type which are independent of the…

经典分析与常微分方程 · 数学 2016-04-19 Richard Ellard , Helena Šmigoc

We prove that the generic maximal independent family obtained by iteratively forcing with the Mathias forcing relative to diagonalization filters is densely maximal. Moreover, by choosing the filters with some care one can ensure the family…

逻辑 · 数学 2023-06-19 Vera Fischer , Corey Bacal Switzer

Using the technique developed in approximation theory, we construct examples of exponential families of infinitely divisible laws which can be viewed as deformations of the normal, gamma, and Poisson exponential families. Replacing the…

统计理论 · 数学 2007-06-13 Wlodzimierz Bryc , Mourad Ismail

We present a parametric family of semi-implicit second order accurate numerical methods for non-conservative and conservative advection equation for which the numerical solutions can be obtained in a fixed number of forward and backward…

数值分析 · 数学 2023-12-01 Peter Frolkovič , Svetlana Krišková , Michaela Rohová , Michal Žeravý

Two different approaches to dealing with probabilistic knowledge are examined -models and inductive inference. Examples of the first are: influence diagrams [1], Bayesian networks [2], log-linear models [3, 4]. Examples of the second are:…

人工智能 · 计算机科学 2013-04-12 Norman C. Dalkey

With the widespread applications of neural networks (NNs) trained on personal data, machine unlearning has become increasingly important for enabling individuals to exercise their personal data ownership, particularly the "right to be…

机器学习 · 计算机科学 2024-08-28 Nhung Bui , Xinyang Lu , Rachael Hwee Ling Sim , See-Kiong Ng , Bryan Kian Hsiang Low

We propose a new class of semi-implicit methods for solving nonlinear fractional differential equations and study their stability. Several versions of our new schemes are proved to be unconditionally stable by choosing suitable parameters.…

数值分析 · 数学 2018-08-14 Fanhai Zeng , Ian Turner , Kevin Burrage , George Em Karniadakis

We study solutions $(x_n)_{n \in \mathbb{N}}$ of nonhomogeneous nonlinear second order difference equations of the type $\ell_n = x_n ( \sigma_{n,1} x_{n+1} + \sigma_{n,0} x_n + \sigma_{n,-1} x_{n-1} ) + \kappa_n x_n$, with given initial…

经典分析与常微分方程 · 数学 2015-03-30 Saud M. Alsulami , Paul Nevai , József Szabados , Walter Van Assche

Methods for the computation of classical Gaussian quadrature rules are described which are effective both for small and large degree. These methods are reliable because the iterative computation of the nodes has guaranteed convergence, and…

数值分析 · 数学 2019-06-14 A. Gil , J. Segura , N. M. Temme