JSM 2005 - Toronto

Abstract #304672

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Legend: = Applied Session, = Theme Session, = Presenter
Activity Number: 387
Type: Topic Contributed
Date/Time: Wednesday, August 10, 2005 : 10:30 AM to 12:20 PM
Sponsor: Section on Bayesian Statistical Science
Abstract - #304672
Title: Strategies for Building and Validating Bayesian Models
Author(s): Mario Peruggia*+ and Ilenia Epifani and Steven N. MacEachern
Companies: The Ohio State University and Politecnico di Milano and The Ohio State University
Address: Department of Statistics, Columbus, OH, 43210-1247, United States
Keywords: Autoregressive errors ; Case deletion ; Importance sampling ; Influence ; Leverage ; Residuals
Abstract:

In this talk I will use a dataset on growth measurements for a collection of mammalian species to illustrate the use of several devices that can facilitate the development of hierarchical Bayes models. Viewing model building as an iterative process provides a unifying theme. The diagnostic devices include numerical and graphical exploratory tools based on summary quantities from the model fit and can be used to assess the adequacy of the current model specification, to detect the presence of jointly influential observations, and to identify directions in which the fit can be refined.

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Revised March 2005