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Conformal prediction provides a distribution-free framework for uncertainty quantification. This study explores the application of conformal prediction in scenarios where covariates are missing, which introduces significant challenges for…

统计方法学 · 统计学 2025-09-09 Jingsen Kong , YIming Liu , Guangren Yang

Testing the equality of the covariance matrices of two high-dimensional samples is a fundamental inference problem in statistics. Several tests have been proposed but they are either too liberal or too conservative when the required…

统计理论 · 数学 2023-01-04 Jin-Ting Zhang , Jingyi Wang , Tianming Zhu

Hypothesis testing in singular statistical models is often regarded as inherently problematic due to non-identifiability and degeneracy of the Fisher information. We show that the fundamental obstruction to testing in such models is not…

统计理论 · 数学 2026-03-02 Sean Plummer

The support recovery problem consists of determining a sparse subset of a set of variables that is relevant in generating a set of observations, and arises in a diverse range of settings such as compressive sensing, and subset selection in…

信息论 · 计算机科学 2016-08-31 Jonathan Scarlett , Volkan Cevher

Reacting against the limitation of statistics to decision procedures, R. A. Fisher proposed for inductive reasoning the use of the fiducial distribution, a parameter-space distribution of epistemological probability transferred directly…

统计理论 · 数学 2013-03-01 David R. Bickel

For linear models with spatial errors, the empirical likelihood ratio statistics are constructed for the parameters of the models. It is shown that the limiting distributions of the empirical likelihood ratio statistics are chi-squared…

统计方法学 · 统计学 2018-08-28 Yongsong Qin

Reconstructive spectrometers are a promising emerging class of devices that combine complex light scattering with inference to enable compact, high-resolution spectrometry. Thus far, the physical determinants of these devices' performance…

光学 · 物理学 2026-03-24 Changyan Zhu , Hsuan Lo , Jianbo Yu , Qijie Wang , Y. D. Chong

Fisher's fiducial probability has recently received renewed attention under the name confidence. In this paper, we reformulate it within an extended-likelihood framework, a representation that helps to resolve many long-standing…

统计理论 · 数学 2026-01-01 Youngjo Lee

We show that confidence intervals in a variance component model, with asymptotically correct uniform coverage probability, can be obtained by inverting certain test-statistics based on the score for the restricted likelihood. The results…

统计方法学 · 统计学 2024-11-05 Yiqiao Zhang , Karl Oskar Ekvall , Aaron J. Molstad

We develop large sample theory including nonparametric confidence regions for $r$-dimensional ridges of probability density functions on $\mathbb{R}^d$, where $1\leq r<d$. We view ridges as the intersections of level sets of some special…

统计理论 · 数学 2020-04-24 Wanli Qiao

In this paper we develop procedures to construct simultaneous confidence bands for $\tilde p$ potentially infinite-dimensional parameters after model selection for general moment condition models where $\tilde p$ is potentially much larger…

统计方法学 · 统计学 2019-02-05 Alexandre Belloni , Victor Chernozhukov , Denis Chetverikov , Ying Wei

The Fisher information matrix is a quantity of fundamental importance for information geometry and asymptotic statistics. In practice, it is widely used to quickly estimate the expected information available in a data set and guide…

统计方法学 · 统计学 2023-06-06 William R. Coulton , Benjamin D. Wandelt

We consider the problems of clustering, classification, and visualization of high-dimensional data when no straightforward Euclidean representation exists. Typically, these tasks are performed by first reducing the high-dimensional data to…

机器学习 · 统计学 2009-09-29 Kevin M. Carter , Raviv Raich , William G. Finn , Alfred O. Hero

Statistical inference of the high-dimensional regression coefficients is challenging because the uncertainty introduced by the model selection procedure is hard to account for. A critical question remains unsettled; that is, is it possible…

统计方法学 · 统计学 2025-01-06 Xiaorui Zhu , Yichen Qin , Peng Wang

The asymptotic distribution of the likelihood-ratio statistic for testing parameters on the boundary is well known to be a chi-squared mixture. The mixture weights have been shown to correspond to the intrinsic volumes of an associated…

统计方法学 · 统计学 2026-01-08 Clara Bertinelli Salucci

The upper bounds on the coverage probabilities of the confidence regions based on blockwise empirical likelihood [Kitamura (1997)] and nonstandard expansive empirical likelihood [Nordman et al. (2013)] methods for time series data are…

统计方法学 · 统计学 2014-08-01 Xianyang Zhang , Xiaofeng Shao

A common approach to analyzing categorical correlated time series data is to fit a generalized linear model (GLM) with past data as covariate inputs. There remain challenges to conducting inference for short time series length. By treating…

统计理论 · 数学 2018-10-23 Xu Gao , Hernando Ombao , Daniel Gillen

This paper introduces a comprehensive framework to adjust a discrete test statistic for improving its hypothesis testing procedure. The adjustment minimizes the Wasserstein distance to a null-approximating continuous distribution, tackling…

统计理论 · 数学 2025-06-13 Gonzalo Contador , Zheyang Wu

The notion of confidence distributions is applied to inference about the parameter in a simple autoregressive model, allowing the parameter to take the value one. This makes it possible to compare to asymptotic approximations in both the…

统计方法学 · 统计学 2023-03-28 Rolf Larsson

This paper examines the construction of confidence sets for parameters defined as linear functionals of a function of W and X whose conditional mean given Z and X equals the conditional mean of another variable Y given Z and X. Many…

统计理论 · 数学 2025-08-08 Ezequiel Smucler , James M. Robins , Andrea Rotnitzky