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We consider the conditional randomization test as a way to account for covariate imbalance in randomized experiments. The test accounts for covariate imbalance by comparing the observed test statistic to the null distribution of the test…

A common task in high-throughput biology is to screen for associations across thousands of units of interest, e.g., genes or proteins. Often, the data for each unit are modeled as Gaussian measurements with unknown mean and variance and are…

统计理论 · 数学 2024-10-01 Nikolaos Ignatiadis , Bodhisattva Sen

E-values and E-processes (nonnegative supermartingales) provide anytime-valid evidence for sequential testing via Ville's inequality, yet their connection to Bayesian reasoning, representational structure, and computational feasibility are…

统计理论 · 数学 2026-03-11 Nicholas G. Polson , Vadim Sokolov , Daniel Zantedeschi

We define and study a family of Markov processes with state space the compact set of all partitions of N that we call exchangeable fragmentation-coalescence processes. They can be viewed as a combination of exchangeable fragmentation as…

概率论 · 数学 2007-05-23 Julien Berestycki

To deal with very large datasets a mini-batch version of the Monte Carlo Markov Chain Stochastic Approximation Expectation-Maximization algorithm for general latent variable models is proposed. For exponential models the algorithm is shown…

统计计算 · 统计学 2023-08-30 Tabea Rebafka , Estelle Kuhn , Catherine Matias

Interest is in evaluating, by Markov chain Monte Carlo (MCMC) simulation, the expected value of a function with respect to a, possibly unnormalized, probability distribution. A general purpose variance reduction technique for the MCMC…

统计计算 · 统计学 2012-09-19 Antonietta Mira , Reza Solgi , Daniele Imparato

Many popular network models rely on the assumption of (vertex) exchangeability, in which the distribution of the graph is invariant to relabelings of the vertices. However, the Aldous-Hoover theorem guarantees that these graphs are dense or…

机器学习 · 统计学 2017-02-07 Diana Cai , Trevor Campbell , Tamara Broderick

In this article, a novel identification test is proposed, which can be applied to parameteric models such as Mixture of Normal (MN) distributions, Markow Switching(MS), or Structural Autoregressive (SVAR) models. In the approach, it is…

统计方法学 · 统计学 2022-06-09 Katarzyna Maciejowska

Though the notion of exchangeability has been discussed in the causal inference literature under various guises, it has rarely taken its original meaning as a symmetry property of probability distributions. As this property is a standard…

统计方法学 · 统计学 2023-10-04 Olli Saarela , David A. Stephens , Erica E. M. Moodie

We propose a Bayesian test of normality for univariate or multivariate data against alternative nonparametric models characterized by Dirichlet process mixture distributions. The alternative models are based on the principles of embedding…

统计理论 · 数学 2023-04-12 Surya T. Tokdar , Ryan Martin

We construct a prequential test of probabilistic forecasts that does not reject correct forecasts when the data-generating processes is exchangeable and is not manipulable by a false forecaster.

统计理论 · 数学 2014-07-21 Alvaro Sandroni , Eran Shmaya

In this article, we present an automated approach that would test for and discover the interoperability of CAD systems based on the approximately-invariant shape properties of their models. We further show that exchanging models in standard…

图形学 · 计算机科学 2020-01-30 Duygu Sap , Daniel P. Szabo

Permutation testing in linear models, where the number of nuisance coefficients is smaller than the sample size, is a well-studied topic. The common approach of such tests is to permute residuals after regressing on the nuisance covariates.…

统计方法学 · 统计学 2020-10-09 Jesse Hemerik , Magne Thoresen , Livio Finos

In this paper, we propose a test for the equality of multiple distributions based on kernel mean embeddings. Our framework provides a flexible way to handle multivariate or even high-dimensional data by virtue of kernel methods and allows…

统计理论 · 数学 2020-06-08 Ilmun Kim

We study how to combine p-values and e-values, and design multiple testing procedures where both p-values and e-values are available for every hypothesis. Our results provide a new perspective on multiple testing with data-driven weights:…

统计方法学 · 统计学 2023-07-19 Nikolaos Ignatiadis , Ruodu Wang , Aaditya Ramdas

Many multiple testing procedures make use of the p-values from the individual pairs of hypothesis tests, and are valid if the p-value statistics are independent and uniformly distributed under the null hypotheses. However, it has recently…

统计方法学 · 统计学 2011-08-25 Joshua D. Habiger , Edsel A. Pena

The aim of this paper is to establish Hoeffding and Bernstein type concentration inequalities for weighted sums of exchangeable random variables. A special case is the i.i.d. setting, where random variables are sampled independently from…

统计理论 · 数学 2025-08-11 Rina Foygel Barber

A number of biomedical problems require performing many hypothesis tests, with an attendant need to apply stringent thresholds. Often the data take the form of a series of predictor vectors, each of which must be compared with a single…

统计方法学 · 统计学 2014-05-13 Yi-Hui Zhou , Fred Wright

A collaborative distributed binary decision problem is considered. Two statisticians are required to declare the correct probability measure of two jointly distributed memoryless process, denoted by $X^n=(X_1,\dots,X_n)$ and…

信息论 · 计算机科学 2016-04-11 Gil Katz , Pablo Piantanida , Merouane Debbah

This paper is concerned with ergodic properties of inhomogeneous Markov processes. Since the transition probabilities depend on initial times, the existing methods to obtain invariant measures for homogeneous Markov processes are not…

概率论 · 数学 2025-01-24 Zhenxin Liu , Di Lu