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The power-expected-posterior (PEP) prior provides an objective, automatic, consistent and parsimonious model selection procedure. At the same time it resolves the conceptual and computational problems due to the use of imaginary data.…

统计方法学 · 统计学 2017-10-02 Dimitris Fouskakis , Ioannis Ntzoufras , Konstantinos Perrakis

The power-expected-posterior (PEP) prior is an objective prior for Gaussian linear models, which leads to consistent model selection inference, under the M-closed scenario, and tends to favor parsimonious models. Recently, two new forms of…

统计方法学 · 统计学 2019-11-22 Dimitris Fouskakis , Ioannis Ntzoufras , Konstantinos Perrakis

In the context of the expected-posterior prior (EPP) approach to Bayesian variable selection in linear models, we combine ideas from power-prior and unit-information-prior methodologies to simultaneously produce a minimally-informative…

统计计算 · 统计学 2015-04-27 Dimitris Fouskakis , Ioannis Ntzoufras , David Draper

One of the main approaches used to construct prior distributions for objective Bayes methods is the concept of random imaginary observations. Under this setup, the expected-posterior prior (EPP) offers several advantages, among which it has…

统计方法学 · 统计学 2020-10-09 Dimitris Fouskakis , Ioannis Ntzoufras

Expected-posterior priors (EPP) have been proved to be extremely useful for testing hypothesis on the regression coefficients of normal linear models. One of the advantages of using EPPs is that impropriety of baseline priors causes no…

统计计算 · 统计学 2014-12-02 Dimitris Fouskakis , Ioannis Ntzoufras

The Zellner's g-prior and its recent hierarchical extensions are the most popular default prior choices in the Bayesian variable selection context. These prior set-ups can be expressed power-priors with fixed set of imaginary data. In this…

统计计算 · 统计学 2013-07-10 Dimitris Fouskakis , Ioannis Ntzoufras

In recent years, inconsistency in Bayesian deep learning has attracted significant attention. Tempered or generalized posterior distributions are frequently employed as direct and effective solutions. Nonetheless, the underlying mechanisms…

机器学习 · 计算机科学 2025-09-23 Yinsong Chen , Samson S. Yu , Zhong Li , Chee Peng Lim

High dimensional statistics deals with the challenge of extracting structured information from complex model settings. Compared with the growing number of frequentist methodologies, there are rather few theoretically optimal Bayes methods…

统计理论 · 数学 2018-08-21 Chao Gao , Aad W. van der Vaart , Harrison H. Zhou

Ordinary differential equations are arguably the most popular and useful mathematical tool for describing physical and biological processes in the real world. Often, these physical and biological processes are observed with errors, in which…

统计方法学 · 统计学 2016-07-26 Sarat C. Dass , Jaeyong Lee , Kyoungjae Lee , Jonghun Park

Laplace's method, a family of asymptotic methods used to approximate integrals, is presented as a potential candidate for the tool box of techniques used for knowledge acquisition and probabilistic inference in belief networks with…

人工智能 · 计算机科学 2013-02-28 Adriano Azevedo-Filho , Ross D. Shachter

Generalized linear models (GLMs) arguably represent the standard approach for statistical regression beyond the Gaussian likelihood scenario. When Bayesian formulations are employed, the general absence of a tractable posterior distribution…

统计计算 · 统计学 2024-07-03 Niccolò Anceschi , Augusto Fasano , Beatrice Franzolini , Giovanni Rebaudo

Approximate Bayesian inference methods provide a powerful suite of tools for finding approximations to intractable posterior distributions. However, machine learning applications typically involve selecting actions, which -- in a Bayesian…

机器学习 · 统计学 2022-01-11 Michael J. Morais , Jonathan W. Pillow

Laplace approximations are popular techniques for endowing deep networks with epistemic uncertainty estimates as they can be applied without altering the predictions of the trained network, and they scale to large models and datasets. While…

机器学习 · 计算机科学 2024-11-01 Tristan Cinquin , Marvin Pförtner , Vincent Fortuin , Philipp Hennig , Robert Bamler

Exact inference in the linear regression model with spike and slab priors is often intractable. Expectation propagation (EP) can be used for approximate inference. However, the regular sequential form of EP (R-EP) may fail to converge in…

机器学习 · 统计学 2011-12-13 José Miguel Hernández-Lobato , Daniel Hernández-Lobato

Bayesian inference is a popular method to build learning algorithms but it is hampered by the fact that its key object, the posterior probability distribution, is often uncomputable. Expectation Propagation (EP) (Minka (2001)) is a popular…

机器学习 · 统计学 2016-12-16 Guillaume P. Dehaene

Inducing-point-based sparse variational Gaussian processes have become the standard workhorse for scaling up GP models. Recent advances show that these methods can be improved by introducing a diagonal scaling matrix to the conditional…

机器学习 · 统计学 2025-07-04 Thang D. Bui , Michalis K. Titsias

In this paper we propose a novel framework for the construction of sparsity-inducing priors. In particular, we define such priors as a mixture of exponential power distributions with a generalized inverse Gaussian density (EP-GIG). EP-GIG…

机器学习 · 统计学 2012-04-20 Zhihua Zhang , Shusen Wang , Dehua Liu , Michael I. Jordan

Generative models and those with computationally intractable likelihoods are widely used to describe complex systems in the natural sciences, social sciences, and engineering. Fitting these models to data requires likelihood-free inference…

统计方法学 · 统计学 2025-12-04 Rui Zhang , Oksana A. Chkrebtii , Dongbin Xiu

I propose a novel approach for nonlinear Logistic regression using a two-layer neural network (NN) model structure with hierarchical priors on the network weights. I present a hybrid of expectation propagation called Variational Expectation…

机器学习 · 统计学 2023-03-06 Kehinde Olobatuyi

We study asymptotic properties of expectation propagation (EP) -- a method for approximate inference originally developed in the field of machine learning. Applied to generalized linear models, EP iteratively computes a multivariate…

信息论 · 计算机科学 2018-05-11 Burak Çakmak , Manfred Opper
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