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We introduce a new method of performing high dimensional discriminant analysis, which we call multiDA. We achieve this by constructing a hybrid model that seamlessly integrates a multiclass diagonal discriminant analysis model and feature…

机器学习 · 统计学 2018-07-05 Sarah Elizabeth Romanes , John Thomas Ormerod , Jean YH Yang

Penalized regression models such as the Lasso have proved useful for variable selection in many fields - especially for situations with high-dimensional data where the numbers of predictors far exceeds the number of observations. These…

统计方法学 · 统计学 2014-03-19 Kasper Brink-Jensen , Claus Thorn Ekstrøm

In the high-dimensional landscape, addressing the challenges of covariance regression with high-dimensional covariates has posed difficulties for conventional methodologies. This paper addresses these hurdles by presenting a novel approach…

统计方法学 · 统计学 2024-04-11 Yuheng He , Changliang Zou , Yi Zhao

In Bayesian statistics, the highest posterior density (HPD) interval is often used to describe properties of a posterior distribution. As a method for estimating confidence intervals (CIs), the HPD has two main desirable properties.…

统计理论 · 数学 2025-07-15 A. X. Venu

We develop adaptive estimation and inference methods for high-dimensional Gaussian copula regression that achieve the same performance without the knowledge of the marginal transformations as that for high-dimensional linear regression.…

统计方法学 · 统计学 2015-12-09 T. Tony Cai , Linjun Zhang

In this paper we develop statistical inference tools for high dimensional functional time series. We introduce a new concept of physical dependent processes in the space of square integrable functions, which adopts the idea of basis…

统计理论 · 数学 2020-03-16 Zhou Zhou , Holger Dette

In this extended abstract, we discuss the opportunity to formally verify that inference systems for probabilistic programming guarantee good performance. In particular, we focus on hybrid inference systems that combine exact and approximate…

编程语言 · 计算机科学 2023-07-17 Eric Atkinson , Ellie Y. Cheng , Guillaume Baudart , Louis Mandel , Michael Carbin

The use of M-estimators in generalized linear regression models in high dimensional settings requires risk minimization with hard $L_0$ constraints. Of the known methods, the class of projected gradient descent (also known as iterative hard…

机器学习 · 计算机科学 2014-10-22 Prateek Jain , Ambuj Tewari , Purushottam Kar

Estimating dynamic treatment effects is a crucial endeavor in causal inference, particularly when confronted with high-dimensional confounders. Doubly robust (DR) approaches have emerged as promising tools for estimating treatment effects…

统计方法学 · 统计学 2023-05-17 Jelena Bradic , Weijie Ji , Yuqian Zhang

Confidence sets play a fundamental role in statistical inference. In this paper, we consider confidence intervals for high dimensional linear regression with random design. We first establish the convergence rates of the minimax expected…

统计理论 · 数学 2015-11-30 T. Tony Cai , Zijian Guo

This paper provides the relevant literature with a complete toolkit for conducting robust estimation and inference about the parameters of interest involved in a high-dimensional panel data framework. Specifically, (1) we allow for…

计量经济学 · 经济学 2025-02-13 Jiti Gao , Fei Liu , Bin Peng , Yayi Yan

This article introduces the R package csranks for estimation and inference involving ranks. First, we review methods for the construction of confidence sets for ranks, namely marginal and simultaneous confidence sets as well as confidence…

计量经济学 · 经济学 2024-01-30 Denis Chetverikov , Magne Mogstad , Pawel Morgen , Joseph Romano , Azeem Shaikh , Daniel Wilhelm

The R package BigVAR allows for the simultaneous estimation of high-dimensional time series by applying structured penalties to the conventional vector autoregression (VAR) and vector autoregression with exogenous variables (VARX)…

统计计算 · 统计学 2017-02-24 William Nicholson , David Matteson , Jacob Bien

We consider inference for high-dimensional separately and jointly exchangeable arrays where the dimensions may be much larger than the sample sizes. For both exchangeable arrays, we first derive high-dimensional central limit theorems over…

计量经济学 · 经济学 2021-07-13 Harold D. Chiang , Kengo Kato , Yuya Sasaki

Regression models with both high-dimensional responses and covariates have attracted growing attention. Standard multivariate regression models become inadequate when the response variables depend not only on observed covariates but also on…

统计方法学 · 统计学 2026-05-01 Jing Ouyang , Chengyu Cui , Yunxiao Chen , Kean Ming Tan , Gongjun Xu

This paper explores the following question: what kind of statistical guarantees can be given when doing variable selection in high-dimensional models? In particular, we look at the error rates and power of some multi-stage regression…

统计理论 · 数学 2009-08-20 Larry Wasserman , Kathryn Roeder

Let $X_1, \ldots, X_n\in\mathbb{R}^p$ be i.i.d. random vectors. We aim to perform simultaneous inference for the mean vector $\mathbb{E} (X_i)$ with finite polynomial moments and an ultra high dimension. Our approach is based on the…

统计理论 · 数学 2017-04-18 Zhipeng Lou , Wei Biao Wu

Assessing the statistical significance of parameter estimates is an important step in high-dimensional vector autoregression modeling. Using the least-squares boosting method, we compute the p-value for each selected parameter at every…

计量经济学 · 经济学 2023-03-16 Xiao Huang

It is a standard assumption that datasets in high dimension have an internal structure which means that they in fact lie on, or near, subsets of a lower dimension. In many instances it is important to understand the real dimension of the…

机器学习 · 统计学 2025-07-21 James A. D. Binnie , Paweł Dłotko , John Harvey , Jakub Malinowski , Ka Man Yim

This paper introduces the partial Gini covariance, a novel dependence measure that addresses the challenges of high-dimensional inference with heavy-tailed errors, often encountered in fields like finance, insurance, climate, and biology.…

统计方法学 · 统计学 2024-11-21 Yilin Zhang , Songshan Yang , Yunan Wu , Lan Wang