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