Asymptotically Optimal Nonparametric Empirical Bayes Via Predictive Recursion

Ryan Martin

Communications in Statistics - Theory and Methods, 2015, vol. 44, issue 2, 286-299

Abstract: An empirical Bayes problem has an unknown prior to be estimated from data. The predictive recursion (PR) algorithm provides fast nonparametric estimation of mixing distributions and is ideally suited for empirical Bayes applications. This article presents a general notion of empirical Bayes asymptotic optimality, and it is shown that PR-based procedures satisfy this property under certain conditions. As an application, the problem of in-season prediction of baseball batting averages is considered. There the PR-based empirical Bayes rule performs well in terms of prediction error and ability to capture the distribution of the latent features.

Date: 2015
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DOI: 10.1080/03610926.2012.743566

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