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We study the use of spike and slab priors for consistent estimation of the number of change points and their locations. Leveraging recent results in the variable selection literature, we show that an estimator based on spike and slab priors…

统计方法学 · 统计学 2021-06-22 Lorenzo Cappello , Oscar Hernan Madrid Padilla , Julia A. Palacios

We propose a general algorithmic framework for Bayesian model selection. A spike-and-slab Laplacian prior is introduced to model the underlying structural assumption. Using the notion of effective resistance, we derive an EM-type algorithm…

统计方法学 · 统计学 2020-06-19 Youngseok Kim , Chao Gao

We consider jointly estimating the coefficient matrix and the error precision matrix in high-dimensional multivariate linear regression models. Bayesian methods in this context often face computational challenges, leading to previous…

统计方法学 · 统计学 2025-08-25 Xuan Cao , Kyoungjae Lee

The proliferation of automated inference algorithms in Bayesian statistics has provided practitioners newfound access to fast, reproducible data analysis and powerful statistical models. Designing automated methods that are also both…

机器学习 · 统计学 2019-10-29 Trevor Campbell , Boyan Beronov

Modern approaches to perform Bayesian variable selection rely mostly on the use of shrinkage priors. That said, an ideal shrinkage prior should be adaptive to different signal levels, ensuring that small effects are ruled out, while keeping…

统计方法学 · 统计学 2024-11-14 Santiago Marin , Bronwyn Loong , Anton H. Westveld

In genomics, differential abundance and expression analyses are complicated by the compositional nature of sequence count data, which reflect only relative-not absolute-abundances or expression levels. Many existing methods attempt to…

统计方法学 · 统计学 2025-12-16 Won Gu , Francesca Chiaromonte , Justin D. Silverman

We propose a novel spike and slab prior specification with scaled beta prime marginals for the importance parameters of regression coefficients to allow for general effect selection within the class of structured additive distributional…

统计方法学 · 统计学 2020-06-30 Nadja Klein , Manuel Carlan , Thomas Kneib , Stefan Lang , Helga Wagner

We develop a Bayesian variable selection method, called SVEN, based on a hierarchical Gaussian linear model with priors placed on the regression coefficients as well as on the model space. Sparsity is achieved by using degenerate spike…

统计方法学 · 统计学 2020-08-04 Dongjin Li , Somak Dutta , Vivekananda Roy

Many statistical models can be simulated forwards but have intractable likelihoods. Approximate Bayesian Computation (ABC) methods are used to infer properties of these models from data. Traditionally these methods approximate the posterior…

机器学习 · 统计学 2018-04-03 George Papamakarios , Iain Murray

During the past decade, shrinkage priors have received much attention in Bayesian analysis of high-dimensional data. This paper establishes the posterior consistency for high-dimensional linear regression with a class of shrinkage priors,…

统计理论 · 数学 2022-10-11 Qifan Song , Faming Liang

In the context of a high-dimensional linear regression model, we propose the use of an empirical correlation-adaptive prior that makes use of information in the observed predictor variable matrix to adaptively address high collinearity,…

统计方法学 · 统计学 2022-07-04 Chang Liu , Yue Yang , Howard Bondell , Ryan Martin

Despite exceptional predictive performance of Deep sequence models (DSMs), the main concern of their deployment centers around the lack of uncertainty awareness. In contrast, probabilistic models quantify the uncertainty associated with…

机器学习 · 计算机科学 2026-03-03 Wenlong Chen

Bayesian simulation-based inference (SBI) methods are used in statistical models where simulation is feasible but the likelihood is intractable. Standard SBI methods can perform poorly in cases of model misspecification, and there has been…

统计方法学 · 统计学 2025-04-15 Wang Yuyan , Michael Evans , David J. Nott

Deep ensembles have emerged as a powerful technique for improving predictive performance and enhancing model robustness across various applications by leveraging model diversity. However, traditional deep ensemble methods are often…

Prior information often takes the form of parameter constraints. Bayesian methods include such information through prior distributions having constrained support. By using posterior sampling algorithms, one can quantify uncertainty without…

统计方法学 · 统计学 2018-09-25 Leo L Duan , Alexander L Young , Akihiko Nishimura , David B Dunson

Bayesian inference for complex models with an intractable likelihood can be tackled using algorithms performing many calls to computer simulators. These approaches are collectively known as "simulation-based inference" (SBI). Recent SBI…

We introduce the spike-and-slab group lasso (SSGL) for Bayesian estimation and variable selection in linear regression with grouped variables. We further extend the SSGL to sparse generalized additive models (GAMs), thereby introducing the…

统计方法学 · 统计学 2020-07-29 Ray Bai , Gemma E. Moran , Joseph Antonelli , Yong Chen , Mary R. Boland

Approximate Bayesian computation (ABC) or likelihood-free inference algorithms are used to find approximations to posterior distributions without making explicit use of the likelihood function, depending instead on simulation of sample data…

统计计算 · 统计学 2015-09-08 Richard D. Wilkinson

Nonresponse weighting adjustment using propensity score is a popular method for handling unit nonresponse. However, including all available auxiliary variables into the propensity model can lead to inefficient and inconsistent estimation,…

统计方法学 · 统计学 2018-07-31 Hejian Sang , Gyuhyeong Goh , Jae Kwang Kim

We introduce a class of generic spike-and-slab priors for high-dimensional linear regression with grouped variables and present a Coordinate-ascent Variational Inference (CAVI) algorithm for obtaining an optimal variational Bayes…

统计方法学 · 统计学 2023-10-02 Buyu Lin , Changhao Ge , Jun S. Liu