Efficient Sampling for Gaussian Linear Regression With Arbitrary Priors

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

6 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)142-154
Journal / PublicationJournal of Computational and Graphical Statistics
Volume28
Issue number1
Online published27 Sep 2018
Publication statusPublished - 2019
Externally publishedYes

Abstract

This article develops a slice sampler for Bayesian linear regression models with arbitrary priors. The new sampler has two advantages over current approaches. One, it is faster than many custom implementations that rely on auxiliary latent variables, if the number of regressors is large. Two, it can be used with any prior with a density function that can be evaluated up to a normalizing constant, making it ideal for investigating the properties of new shrinkage priors without having to develop custom sampling algorithms. The new sampler takes advantage of the special structure of the linear regression likelihood, allowing it to produce better effective sample size per second than common alternative approaches.

Research Area(s)

  • Bayesian computation, Linear regression, Shrinkage priors, Slice sampling