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Our aim in the current article is to extend the developments in Kruger, Ngai & Th\'era, SIAM J. Optim. 20(6), 3280-3296 (2010) and, more precisely, to characterize, in the Banach space setting, the stability of the local and global error…

最优化与控制 · 数学 2018-05-15 A. Y. Kruger , M. A. López , M. A. Théra

In this paper, we improve the PAC-Bayesian error bound for linear regression derived in Germain et al. [10]. The improvements are twofold. First, the proposed error bound is tighter, and converges to the generalization loss with a…

机器学习 · 计算机科学 2019-12-09 Vera Shalaeva , Alireza Fakhrizadeh Esfahani , Pascal Germain , Mihaly Petreczky

The generalization error of a learning algorithm refers to the discrepancy between the loss of a learning algorithm on training data and that on unseen testing data. Various information-theoretic bounds on the generalization error have been…

信息论 · 计算机科学 2025-06-24 Xuetong Wu , Jonathan H. Manton , Uwe Aickelin , Jingge Zhu

This article deals with error estimates for the finite element approximation of variational normal derivatives and, as a consequence, error estimates for the finite element approximation of Dirichlet boundary control problems with energy…

数值分析 · 数学 2018-08-06 Max Winkler

Numerical integration over the real line for analytic functions is studied. Our main focus is on the sharpness of the error bounds. We first derive two general lower estimates for the worst-case integration error, and then apply these to…

数值分析 · 数学 2024-10-30 Takashi Goda , Yoshihito Kazashi , Ken'ichiro Tanaka

The calculus of variations for lagrangians which are not functions on the tangent bundle, but sections certain affine bundles is developed. We follow a general approach to variational principles which admits boundary terms of variations.

数学物理 · 物理学 2007-05-23 Katarzyna Grabowska , Pawel Urbanski

In statistical classification and machine learning, classification error is an important performance measure, which is minimized by the Bayes decision rule. In practice, the unknown true distribution is usually replaced with a model…

机器学习 · 计算机科学 2025-01-28 Zijian Yang , Vahe Eminyan , Ralf Schlüter , Hermann Ney

Based on the variable Hilbert scale interpolation inequality bounds for the error of regularisation methods are derived under range inclusions. In this context, new formulae for the modulus of continuity of the inverse of bounded operators…

数值分析 · 数学 2010-05-24 Markus Hegland , Bernd Hofmann

In this paper we prove exponential inequalities (also called Bernstein's inequality) for fractional martingales. As an immediate corollary, we will discuss weak law of large numbers for fractional martingales under divergence assumption on…

概率论 · 数学 2012-04-20 Bruno Saussereau

Dynamical spectral estimation is a well-established numerical approach for estimating eigenvalues and eigenfunctions of the Markov transition operator from trajectory data. Although the approach has been widely applied in biomolecular…

数值分析 · 数学 2023-10-03 Robert J. Webber , Erik H. Thiede , Douglas Dow , Aaron R. Dinner , Jonathan Weare

This study establishes a nontrivial upper bound on the out-of-sample $R^2$ ($R^2_{\text{OOS}}$) in return forecasting. In particular, we define a coin-flip oracle model that, under the same directional accuracy, theoretically outperforms…

计量经济学 · 经济学 2026-04-07 Cheng Zhang

In this paper, we consider the Gauss quadrature formulae corresponding to some modifications of anyone of the four Chebyshev weights, considered by Gautschi and Li in \cite{gauli}. As it is well known, in the case of analytic integrands,…

数值分析 · 数学 2018-10-03 Ramon Orive , Aleksandar V. Pejcev , Miodrag M. Spalevic

In this work, we derive two-sided a posteriori error estimates for the dual-weighted residual (DWR) method. We consider both single and multiple goal functionals. Using a saturation assumption, we derive lower bounds yielding the efficiency…

数值分析 · 数学 2018-11-20 Bernhard Endtmayer , Ulrich Langer , Thomas Wick

The conventional rounding error analysis provides worst-case bounds with an associated failure probability and ignores the statistical property of the rounding errors. In this paper, we develop a new statistical rounding error analysis for…

数值分析 · 数学 2025-11-04 Yiming Fang , Li Chen

Approximation of scattered data is often a task in many engineering problems. The Radial Basis Function (RBF) approximation is appropriate for large scattered (unordered) datasets in d-dimensional space. This approach is useful for a higher…

数值分析 · 计算机科学 2018-06-21 Zuzana Majdisova , Vaclav Skala

A lower bound is an important tool for predicting the performance that an estimator can achieve under a particular statistical model. Bayesian bounds are a kind of such bounds which not only utilizes the observation statistics but also…

统计理论 · 数学 2023-03-02 Shuo Tang , Gerald LaMountain , Tales Imbiriba , Pau Closas

Recurrent Neural Networks (RNNs) have achieved great success in the prediction of sequential data. However, their theoretical studies are still lagging behind because of their complex interconnected structures. In this paper, we establish a…

机器学习 · 统计学 2024-11-06 Xuewei Cheng , Ke Huang , Shujie Ma

Spectral problem for the Dirac operator with regular but not strongly regular boundary conditions and complex-valued potential summable over a finite interval is considered. The purpose of this paper is to find conditions under which the…

谱理论 · 数学 2019-02-11 Alexander Makin

Convergence bounds are one of the main tools to obtain information on the performance of a distributed machine learning task, before running the task itself. In this work, we perform a set of experiments to assess to which extent, and in…

网络与互联网体系结构 · 计算机科学 2022-12-06 Francesco Malandrino , Carla Fabiana Chiasserini

We give an expression for a generalized numerical radius of Hilbert space operators and then apply it to obtain upper and lower bounds for the generalized numerical radius. We also establish some generalized numerical radius inequalities…

泛函分析 · 数学 2019-09-26 A. Zamani , M. S. Moslehian , Q. Xu , C. Fu