Article ID: | iaor2012776 |
Volume: | 53 |
Issue: | 3 |
Start Page Number: | 305 |
End Page Number: | 330 |
Publication Date: | Sep 2011 |
Journal: | Australian & New Zealand Journal of Statistics |
Authors: | Neville Sarah E, Palmer M J, Wand M P |
Keywords: | Australia, Bayesian analysis, Bayesian modelling |
We develop Mean Field Variational Bayes methodology for fast approximate inference in Bayesian Generalized Extreme Value additive model analysis. Such models are useful for flexibly assessing the impact of continuous predictor variables on sample extremes. The new methodology allows large Bayesian models to be fitted and assessed without the significant computing costs of Markov Chain Monte Carlo methods. We illustrate our new methodology with maximum rainfall data from the Sydney, Australia, hinterland. Comparisons are made between the Mean Field Variational Bayes and Markov Chain Monte Carlo approaches.