Posterior consistency of dirichlet location-scale mixture of normals in density estimation and regression

Journal Article (Journal Article)

We provide sufficient conditions under which a Dirichlet location-scale mixture of normal prior achieves weak and strong posterior consistency at a true density. Our conditions involve both the prior and the true density from which observations are obtained. We consider it to be a significant improvement over the existing results since our conditions cover the case of fat tailed densities like the Cauchy, with a standard choice for the base measure of the Dirichlet process. This provides a wider choice for using these popular mixture priors for nonparametric density estimation and semiparametric regression problems. © 2006, Indian Statistical Institute.

Duke Authors

Cited Authors

  • Tokdar, ST

Published Date

  • February 1, 2006

Published In

Volume / Issue

  • 68 / 1

Start / End Page

  • 90 - 110

International Standard Serial Number (ISSN)

  • 0972-7671

Citation Source

  • Scopus