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Many modern experiments, such as microarray gene expression and genome-wide association studies, present the problem of estimating a large number of parallel effects. Bayesian inference is a popular approach for analyzing such data by…

统计方法学 · 统计学 2018-10-26 J G Liao , Arthur Berg , Timothy L McMurry

We describe a new method for evaluating Bayes factors. The key idea is to introduce a hypermodel in which the competing models are components of a mixture distribution. Inference for the mixing probabilities then yields estimates of the…

统计方法学 · 统计学 2016-02-16 Philip D. O'Neill , Theodore Kypraios

Training machine learning and statistical models often involves optimizing a data-driven risk criterion. The risk is usually computed with respect to the empirical data distribution, but this may result in poor and unstable out-of-sample…

机器学习 · 统计学 2024-11-11 Nicola Bariletto , Nhat Ho

We consider nonparametric inference for event time distributions based on current status data. We show that in this scenario conventional mixture priors, including the popular Dirichlet process mixture prior, lead to biologically…

统计方法学 · 统计学 2020-09-23 Giorgio Paulon , Peter Müller , Victor G. Sal Y Rosas

The increasing integration of distributed energy resources (DERs) is transforming power systems into complex, decentralized networks, particularly at the distribution level, where active distribution networks (ADNs) introduce new challenges…

最优化与控制 · 数学 2025-07-14 J. G. De la Varga , J. M. Morales , S. Pineda

Atomistic modelling of phase transitions, chemical reactions, or other rare events that involve overcoming high free energy barriers usually entails prohibitively long simulation times. Introducing a bias potential as a function of an…

计算物理 · 物理学 2019-11-06 Federico Giberti , Bingqing Cheng , Gareth Aneurin Tribello , Michele Ceriotti

This article analyzes the problem of estimating the time until an event occurs, also known as survival modeling. We observe through substantial experiments on large real-world datasets and use-cases that populations are largely…

机器学习 · 计算机科学 2019-05-13 David Hubbard , Benoit Rostykus , Yves Raimond , Tony Jebara

Several approximate inference methods have been proposed for deep discrete latent variable models. However, non-parametric methods which have previously been successfully employed for classical sparse coding models have largely been…

机器学习 · 计算机科学 2023-03-16 Arunesh Mittal , Kai Yang , Paul Sajda , John Paisley

In this paper, we propose a regression model where the response variable is beta prime distributed using a new parameterization of this distribution that is indexed by mean and precision parameters. The proposed regression model is useful…

统计方法学 · 统计学 2018-04-23 Marcelo Bourguignon , Manoel Santos-Neto , Mário de Castro

We provide a comprehensive semi-parametric study of Bayesian partially identified econometric models. While the existing literature on Bayesian partial identification has mostly focused on the structural parameter, our primary focus is on…

统计方法学 · 统计学 2017-09-29 Yuan Liao , Anna Simoni

This paper proposes a novel signed $\beta$-model for directed signed network, which is frequently encountered in application domains but largely neglected in literature. The proposed signed $\beta$-model decomposes a directed signed network…

统计方法学 · 统计学 2023-10-09 Haoran Zhang , Junhui Wang

We introduce semiparametric Bayesian networks that combine parametric and nonparametric conditional probability distributions. Their aim is to incorporate the advantages of both components: the bounded complexity of parametric models and…

机器学习 · 计算机科学 2021-09-08 David Atienza , Concha Bielza , Pedro Larrañaga

There is a substantial literature on testing for the equality of the cumulative incidence functions associated with one specific cause in a competing risks setting across several populations against specific or all alternatives. In this…

统计理论 · 数学 2008-12-18 Hammou El Barmi , Subhash Kochar , Hari Mukerjee

The random self-reinforcement mechanism, characterized by the principle of ``the rich get richer'', has demonstrated significant utility across various domains. One prominent model embodying this mechanism is the random reinforcement urn…

统计理论 · 数学 2024-06-18 Li Yang , Jiang Hu , Jianghao Li , Zhidong Bai

This paper develops a new approach to post-selection inference for screening high-dimensional predictors of survival outcomes. Post-selection inference for right-censored outcome data has been investigated in the literature, but much…

统计方法学 · 统计学 2021-12-22 Tzu-Jung Huang , Alex Luedtke , Ian W. McKeague

Neural networks make accurate predictions but often fail to provide reliable uncertainty estimates, especially under covariate distribution shifts between training and testing. To address this problem, we propose a Bayesian framework for…

机器学习 · 统计学 2025-12-22 Yuli Slavutsky , David M. Blei

The ranking problem is to order a collection of units by some unobserved parameter, based on observations from the associated distribution. This problem arises naturally in a number of contexts, such as business, where we may want to rank…

统计方法学 · 统计学 2016-10-28 Toby Kenney , Hao He , Hong Gu

The aim of this work is to enable inference of deep networks that retain high accuracy for the least possible model complexity, with the latter deduced from the data during inference. To this end, we revisit deep networks that comprise…

机器学习 · 计算机科学 2019-05-07 Konstantinos P. Panousis , Sotirios Chatzis , Sergios Theodoridis

Case-I interval-censored (current status) data from multistate systems are often encountered in biomedical and epidemiological studies. In this article, we focus on the problem of estimating state entry distribution and occupation…

统计方法学 · 统计学 2026-03-12 Samuel Anyaso-Samuel , Somnath Datta

This paper proposes new linear regression models to deal with overdispersed binomial datasets. These new models, called tilted beta binomial regression models, are defined from the tilted beta binomial distribution, proposed assuming that…

统计方法学 · 统计学 2019-11-26 María Victoria Cifuentes-Amado , Edilberto Cepeda-Cuervo