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Approximating functions by a linear span of truncated basis sets is a standard procedure for the numerical solution of differential and integral equations. Commonly used concepts of approximation methods are well-posed and convergent, by…

数值分析 · 数学 2022-12-14 Yahya Saleh , Armin Iske , Andrey Yachmenev , Jochen Küpper

Dependency functions of dependent variables are relevant for i) performing uncertainty quantification and sensitivity analysis in presence of dependent variables and/or correlated variables, and ii) simulating random dependent variables. In…

统计方法学 · 统计学 2022-03-22 Matieyendou Lamboni

It has recently become popular to define treatment effects for subsets of the target population characterized by variables not observable at the time a treatment decision is made. Characterizing and estimating such treatment effects is…

统计理论 · 数学 2007-08-30 Marshall M. Joffe , Dylan Small , Chi-Yuan Hsu

Linear mixed-effects models are widely used in analyzing clustered or repeated measures data. We propose a quasi-likelihood approach for estimation and inference of the unknown parameters in linear mixed-effects models with high-dimensional…

统计方法学 · 统计学 2021-03-10 Sai Li , Tony T. Cai , Hongzhe Li

Design-based causal inference, also known as randomization-based or finite-population causal inference, is one of the most widely used causal inference frameworks, largely due to the merit that its validity can be guaranteed by study design…

统计方法学 · 统计学 2025-05-27 Siyu Heng , Jiawei Zhang , Yang Feng

Selective inference aims at providing valid inference after a data-driven selection of models or hypotheses. It is essential to avoid overconfident results and replicability issues. While significant advances have been made in this area for…

统计方法学 · 统计学 2025-03-14 Matteo D'Alessandro , Magne Thoresen

We introduce an iterative discrete information production process where we can extend ordered normalised vectors by new elements based on a simple affine transformation, while preserving the predefined level of inequality, G, as measured by…

物理与社会 · 物理学 2024-01-17 Lucio Bertoli-Barsotti , Marek Gagolewski , Grzegorz Siudem , Barbara Żogała-Siudem

Linearization is a standard approach in the computation of eigenvalues, eigenvectors and invariant subspaces of matrix polynomials and rational matrix value functions. An important source of linearizations are the so called Fiedler…

范畴论 · 数学 2023-11-27 Namita Behera , Avisek Bist , Volker Mehrmann

This survey paper discusses the history of approximation formulas for n-th order derivatives by integrals involving orthogonal polynomials. There is a large but rather disconnected corpus of literature on such formulas. We give some results…

经典分析与常微分方程 · 数学 2021-01-19 Enno Diekema , Tom H. Koornwinder

We develop a new approach for quantifying uncertainty in finite populations, by using design distributions to calibrate sensitivity parameters in finite population identified sets. This yields uncertainty intervals that can be interpreted…

计量经济学 · 经济学 2026-05-12 Brendan Kline , Matthew A. Masten

Training neural network models with discrete (categorical or structured) latent variables can be computationally challenging, due to the need for marginalization over large or combinatorial sets. To circumvent this issue, one typically…

机器学习 · 计算机科学 2020-12-29 Gonçalo M. Correia , Vlad Niculae , Wilker Aziz , André F. T. Martins

The paper presents new and known results on estimates of important linear and nonlinear approximation characteristics of generalized Wiener classes of functions of several variables in different metrics.

经典分析与常微分方程 · 数学 2026-01-06 Andrii Shidlich

We give an overview over the usefulness of the concept of equivariance and invariance in the design of experiments for generalized linear models. In contrast to linear models here pairs of transformations have to be considered which act…

统计理论 · 数学 2020-11-20 Osama Idais , Rainer Schwabe

Interpreting a nonparametric regression model with many predictors is known to be a challenging problem. There has been renewed interest in this topic due to the extensive use of machine learning algorithms and the difficulty in…

机器学习 · 统计学 2018-09-11 Xiaoyu Liu , Jie Chen , Joel Vaughan , Vijayan Nair , Agus Sudjianto

Real-world large-scale datasets usually contain noisy labels and are imbalanced. Therefore, we propose derivative manipulation (DM), a novel and general example weighting approach for training robust deep models under these adverse…

机器学习 · 计算机科学 2020-10-06 Xinshao Wang , Elyor Kodirov , Yang Hua , Neil M. Robertson

This paper deals with a linear model of regression on quantiles when the explanatory variable takes values in some functional space and the response is scalar. We propose a spline estimator of the functional coefficient that minimizes a…

统计理论 · 数学 2016-08-14 Hervé Cardot , Christophe Crambes , Pascal Sarda

In this paper we apply the previously introduced approximation method based on the ANOVA (analysis of variance) decomposition and Grouped Transformations to synthetic and real data. The advantage of this method is the interpretability of…

机器学习 · 统计学 2022-01-31 Daniel Potts , Michael Schmischke

Regression analysis is commonly conducted in survey sampling. However, existing methods fail when the relationships vary across different areas or domains. In this paper, we propose a unified framework to study the group-wise covariate…

统计方法学 · 统计学 2024-09-25 Mingjun Gang , Xin Wang , Zhonglei Wang , Wei Zhong

Performing sensitivity analysis for influence diagrams using the decision circuit framework is particularly convenient, since the partial derivatives with respect to every parameter are readily available [Bhattacharjya and Shachter, 2007;…

人工智能 · 计算机科学 2012-03-19 Debarun Bhattacharjya , Ross D. Shachter

This work introduces a novel, simple, and flexible method to quantify irreversibility in generic high-dimensional time series based on the well-known mapping to a binary classification problem. Our approach utilizes gradient boosting for…

统计力学 · 物理学 2025-01-09 Michele Vodret , Cristiano Pacini , Christian Bongiorno