Abstract #301924

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JSM 2002 Abstract #301924
Activity Number: 253
Type: Contributed
Date/Time: Tuesday, August 13, 2002 : 2:00 PM to 3:50 PM
Sponsor: Section on Bayesian Stat. Sciences*
Abstract - #301924
Title: Bayesian estimation of the RC(M) association model
Author(s): Anna Nicolaou*+ and Maria Kateri and Ioannis Ntzoufras
Affiliation(s): University of Macedonia and University of Ioannina and University of the Aegean
Address: 156 Egnatia, Thessaloniki, , 54006, Grecce
Keywords: RC(M) association model ; Kullback-Leibler projection ; Bayes factor
Abstract:

Describing the association structure in a two way contigency table by an RC(M) model, we are concerned with the problem of evaluating the fit of a model with smaller dimension of association M. The Kullback-Leibler projection of the saturated model is used to induce the posterior distribution over the parameters of the simpler model. We propose an index that is based on the posterior expectation of the minimum distance, as well as on the complexity of the model.

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