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This paper explores hypothesis testing for the parametric forms of the mean and variance functions in regression models under diverging-dimension settings. To mitigate the curse of dimensionality, we introduce weighted residual empirical…

统计理论 · 数学 2025-10-28 Falong Tan , Xu Guo , Lixing Zhu

A longstanding problem of existing empirical process-based tests for regressions is that when the number of covariates is greater than one, they either have no tractable limiting null distributions or are not omnibus. To attack this…

统计方法学 · 统计学 2016-04-08 Falong Tan , Xuehu Zhu , Lixing Zhu

This paper proposes a novel two-step strategy for testing the goodness-of-fit of parametric regression models in ultra-high dimensional sparse settings, where the predictor dimension far exceeds the sample size. This regime usually renders…

统计方法学 · 统计学 2025-12-30 Falong Tan , Jie Liu , Heng Peng , Lixing Zhu

Using cumulative residual processes, we propose joint goodness-of-fit tests for conditional means and variances functions in the context of nonlinear time series with martingale difference innovations. The main challenge comes from the fact…

统计方法学 · 统计学 2021-07-02 Kilani Ghoudi , Naâmane Laïb , Mohamed Chaouch

Testing high-dimensional quantile regression coefficients is crucial, as tail quantiles often reveal more than the mean in many practical applications. Nevertheless, the sparsity pattern of the alternative hypothesis is typically unknown in…

统计方法学 · 统计学 2025-12-29 Ping Zhao , Zhenyu Liu , Dan Zhuang

We develop a unified $L$-statistic testing framework for high-dimensional regression coefficients that adapts to unknown sparsity. The proposed statistics rank coordinate-wise evidence measures and aggregate the top $k$ signals, bridging…

应用统计 · 统计学 2026-02-10 Ping Zhao , Fengyi Song , Huifang Ma

Combining individual p-values to aggregate multiple small effects has a long-standing interest in statistics, dating back to the classic Fisher's combination test. In modern large-scale data analysis, correlation and sparsity are common…

统计方法学 · 统计学 2018-11-30 Yaowu Liu , Jun Xie

We propose a robust inferential procedure for assessing uncertainties of parameter estimation in high-dimensional linear models, where the dimension $p$ can grow exponentially fast with the sample size $n$. Our method combines the…

机器学习 · 统计学 2015-03-19 Tianqi Zhao , Mladen Kolar , Han Liu

In the common nonparametric regression model the problem of testing for a specific parametric form of the variance function is considered. Recently Dette and Hetzler (2008) proposed a test statistic, which is based on an empirical process…

统计理论 · 数学 2008-09-30 H. Dette , B. Hetzler

This paper discusses asymptotically distribution free tests for the classical goodness-of-fit hypothesis of an error distribution in nonparametric regression models. These tests are based on the same martingale transform of the residual…

统计理论 · 数学 2009-09-02 Estate V. Khmaladze , Hira L. Koul

Many high-dimensional hypothesis tests aim to globally examine marginal or low-dimensional features of a high-dimensional joint distribution, such as testing of mean vectors, covariance matrices and regression coefficients. This paper…

统计理论 · 数学 2020-02-04 Yinqiu He , Gongjun Xu , Chong Wu , Wei Pan

In this paper, we develop a new and effective approach to nonparametric quantile regression that accommodates ultrahigh-dimensional data arising from spatio-temporal processes. This approach proves advantageous in staving off computational…

统计方法学 · 统计学 2024-05-27 Soudeep Deb , Claudia Neves , Subhrajyoty Roy

We introduce a novel meta-analysis framework to combine dependent tests under a general setting, and utilize it to synthesize various microbiome association tests that are calculated from the same dataset. Our development builds upon the…

统计方法学 · 统计学 2024-04-16 Xiufan Yu , Linjun Zhang , Arun Srinivasan , Min-ge Xie , Lingzhou Xue

We examine the linear regression problem in a challenging high-dimensional setting with correlated predictors where the vector of coefficients can vary from sparse to dense. In this setting, we propose a combination of probabilistic…

统计方法学 · 统计学 2025-05-13 Roman Parzer , Peter Filzmoser , Laura Vana-Gür

We study the high-dimensional uniformity testing problem, which involves testing whether the underlying distribution is the uniform distribution, given $n$ data points on the $p$-dimensional unit hypersphere. While this problem has been…

统计理论 · 数学 2025-06-03 Tiefeng Jiang , Tuan Pham

This paper develops a novel nonparametric significance test based on a tailored nonparametric-type projected weighting function that exhibits appealing theoretical and numerical properties. We derive the asymptotic properties of the…

计量经济学 · 经济学 2026-02-18 Xiaojun Song , Jichao Yuan

Consider an observation of a multivariate temporal point process $N$ with law $\mathcal P$ on the time interval $[0,T]$. To test the null hypothesis that $\mathcal P$ belongs to a given parametric family, we construct a convergent…

统计理论 · 数学 2025-06-26 Justin Baars , Sami Umut Can , Roger J. A. Laeven

Estimation and hypothesis tests for the covariance matrix in high dimensions is a challenging problem as the traditional multivariate asymptotic theory is no longer valid. When the dimension is larger than or increasing with the sample…

统计方法学 · 统计学 2020-11-18 Deepak Nag Ayyala , Santu Ghosh , Daniel F. Linder

We investigate the problem of testing the global null in the high-dimensional regression models when the feature dimension $p$ grows proportionally to the number of observations $n$. Despite a number of prior work studying this problem,…

统计方法学 · 统计学 2020-10-06 Yue Li , Ilmun Kim , Yuting Wei

In model checking for regressions, nonparametric estimation-based tests usually have tractable limiting null distributions and are sensitive to oscillating alternative models, but suffer from the curse of dimensionality. In contrast,…

统计方法学 · 统计学 2019-03-12 Lingzhu Li , Xuehu Zhu , Lixing Zhu
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