Bayesian measures of model complexity an
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David J. Spiegelhalter; Nicola G. Best; Bradley P. Carlin; Angelika Van Der Lind
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Article
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2002
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Blackwell Publishing
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English
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## Summary We consider the problem of comparing complex hierarchical models in which the number of parameters is not clearly defined. Using an information theoretic argument we derive a measure pD for the effective number of parameters in a model as the difference between the posterior mean of the