On Reparameterization Invariant Bayesian Point Estimates and Credible Regions

22 Sep 2021  ·  Aki Vehtari ·

This paper considers reparameterization invariant Bayesian point estimates and credible regions of model parameters for scientific inference and communication. The effect of intrinsic loss function choice in Bayesian intrinsic estimates and regions is studied with the following findings... A particular intrinsic loss function, using Kullback-Leibler divergence from the full model to the restricted model, has strong connection to a Bayesian predictive criterion, which produces point estimates with the best predictive performance. An alternative intrinsic loss function, using Kullback-Leibler divergence from the restricted model to the full model, produces estimates with interesting frequency properties for at least some commonly used distributions, that is, unbiased minimum variance estimates of the location and scale parameters. read more

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