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It is increasingly common to collect pre-post data with pseudonyms or self-constructed identifiers. On survey responses from sensitive populations, identifiers may be made optional to encourage higher response rates. The ability to match…

统计方法学 · 统计学 2023-12-25 Raymond Pomponio , Bailey K. Fosdick , Julia Wrobel , Ryan A. Peterson

High dimensional hypothesis test deals with models in which the number of parameters is significantly larger than the sample size. Existing literature develops a variety of individual tests. Some of them are sensitive to the dense and small…

统计理论 · 数学 2018-08-09 Cheng Zhou , Xinsheng Zhang , Wenxin Zhou , Han Liu

This paper takes a different look on the problem of testing the mutual independence of the components of a high-dimensional vector. Instead of testing if all pairwise associations (e.g. all pairwise Kendall's $\tau$) between the components…

统计理论 · 数学 2024-02-14 Patrick Bastian , Holger Dette , Johannes Heiny

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

This article concerns tests for the two-sample location problem when the dimension is larger than the sample size. The traditional multivariate-rank-based procedures cannot be used in high dimensional settings because the sample scatter…

统计方法学 · 统计学 2015-06-30 Long Feng

Comparing large covariance matrices has important applications in modern genomics, where scientists are often interested in understanding whether relationships (e.g., dependencies or co-regulations) among a large number of genes vary…

统计方法学 · 统计学 2017-04-04 Jinyuan Chang , Wen Zhou , Wen-Xin Zhou , Lan Wang

Estimating a sparse covariance matrix is a fundamental problem in high-dimensional statistics. However, thresholding methods developed for independent data are generally not directly applicable to high-dimensional time series, where…

统计方法学 · 统计学 2026-05-15 Wenhao Zhang , Zhaoxing Gao

To date, testing interactions in high dimensions has been a challenging task. Existing methods often have issues with sensitivity to modeling assumptions and heavily asymptotic nominal p-values. To help alleviate these issues, we propose a…

机器学习 · 统计学 2012-06-29 Noah Simon , Robert Tibshirani

Hash coding has been widely used in the approximate nearest neighbor search for large-scale image retrieval. Recently, many deep hashing methods have been proposed and shown largely improved performance over traditional…

计算机视觉与模式识别 · 计算机科学 2019-10-18 Zheng Zhang , Qin Zou , Yuewei Lin , Long Chen , Song Wang

The paper considers a paired data framework and discuss the question of marginal homogeneity of bivariate high dimensional or functional data. The related testing problem can be endowed into a more general setting for paired random…

统计方法学 · 统计学 2021-05-04 Marc Ditzhaus , Daniel Gaigall

Repeated-measure designs allow comparisons within a group as well as between groups, and are commonly referred to as split-plot designs. While originating in agricultural experiments, they are now widely used in medical research,…

统计计算 · 统计学 2025-12-22 Paavo Sattler , Nils Hichert

Standard statistical methods that do not take proper account of the complexity of survey design can lead to erroneous inferences when applied to survey data due to unequal selection probabilities, clustering, and other design features. In…

统计方法学 · 统计学 2021-03-04 Jae-kwang Kim , J. N. K. Rao , Zhonglei Wang

After variable selection, standard inferential procedures for regression parameters may not be uniformly valid; there is no finite-sample size at which a standard test is guaranteed to approximately attain its nominal size. This problem is…

统计方法学 · 统计学 2020-07-07 Oliver Dukes , Vahe Avagyan , Stijn Vansteelandt

Modern high-throughput biomedical devices routinely produce data on a large scale, and the analysis of high-dimensional datasets has become commonplace in biomedical studies. However, given thousands or tens of thousands of measured…

统计方法学 · 统计学 2022-02-28 Vladimir Vutov , Thorsten Dickhaus

This article presents a homogeneity test for testing the equality of several high-dimensional covariance matrices for stationary processes with ignoring the assumption of normality. We give the asymptotic distribution of the proposed test.…

统计理论 · 数学 2020-08-24 Abdullah Qayed , Dong Han

We propose optimal Bayesian two-sample tests for testing equality of high-dimensional mean vectors and covariance matrices between two populations. In many applications including genomics and medical imaging, it is natural to assume that…

统计方法学 · 统计学 2021-12-07 Kyoungjae Lee , Kisung You , Lizhen Lin

Permutation tests enable testing statistical hypotheses in situations when the distribution of the test statistic is complicated or not available. In some situations, the test statistic under investigation is multivariate, with the multiple…

统计方法学 · 统计学 2023-11-08 Zdeněk Hlávka , Daniel Hlubinka , Šárka Hudecová

We develop an asymptotic theory for $L^2$ norms of sample mean vectors of high-dimensional data. An invariance principle for the $L^2$ norms is derived under conditions that involve a delicate interplay between the dimension $p$, the sample…

统计理论 · 数学 2015-03-13 Mengyu Xu , Danna Zhang , Wei Biao Wu

In the presence of weak overall correlation, it may be useful to investigate if the correlation is significantly and substantially more pronounced over a subpopulation. Two different testing procedures are compared. Both are based on the…

机器学习 · 统计学 2015-04-22 Stephen Bamattre , Rex Hu , Joseph S. Verducci

In this paper, we develop a systematic theory for high dimensional analysis of variance in multivariate linear regression, where the dimension and the number of coefficients can both grow with the sample size. We propose a new \emph{U}~type…

统计方法学 · 统计学 2023-01-12 Zhipeng Lou , Xianyang Zhang , Wei Biao Wu