Bayesian Model Choice: Asymptotics and Exact Calculations
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ID: 296137
1994
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Abstract
SUMMARY Model determination is a fundamental data analytic task. Here we consider the problem of choosing among a finite (without loss of generality we assume two) set of models. After briefly reviewing classical and Bayesian model choice strategies we present a general predictive density which includes all proposed Bayesian approaches that we are aware of. Using Laplace approximations we can conveniently assess and compare the asymptotic behaviour of these approaches. Concern regarding the accuracy of these approximations for small to moderate sample sizes encourages the use of Monte Carlo techniques to carry out exact calculations. A data set fitted with nested non-linear models enables comparisons between proposals and between exact and asymptotic values.
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|---|---|
| Authors | Alan E. Gelfand, Dipak K. Dey |
| Journal | Journal of the Royal Statistical Society Series B (Statistical Methodology) |
| Year | 1994 |
| DOI |
10.1111/j.2517-6161.1994.tb01996.x
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| URL | |
| Keywords | Keywords not found |
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