English

High-dimensional properties for empirical priors in linear regression with unknown error variance

Statistics Theory 2022-02-14 v1 Statistics Theory

Abstract

We study full Bayesian procedures for high-dimensional linear regression. We adopt data-dependent empirical priors introduced in [1]. In their paper, these priors have nice posterior contraction properties and are easy to compute. Our paper extend their theoretical results to the case of unknown error variance . Under proper sparsity assumption, we achieve model selection consistency, posterior contraction rates as well as Bernstein von-Mises theorem by analyzing multivariate t-distribution.

Keywords

Cite

@article{arxiv.2202.05419,
  title  = {High-dimensional properties for empirical priors in linear regression with unknown error variance},
  author = {Xiao Fang and Malay Ghosh},
  journal= {arXiv preprint arXiv:2202.05419},
  year   = {2022}
}
R2 v1 2026-06-24T09:31:23.244Z