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2024年5月28日 · My question is does anyone know of a formal way to test the difference between two models using WAIC and effective degrees of freedom? Any help much appreciated.

5 天之前 · I wanted to calculate WAIC as I have heard it is more robust for hierarchical models. Below is a simplified version of my JAGS code, I have 3 continuous response variables, Dim.1, Dim.2 and …

2020年7月11日 · I am trying to figure out how to interpret the WAIC value computed based on two different Bayesian models. Is the value only used for comparing the models, such that the predictive …

2025年4月24日 · I would like to do model selection using WAIC, rather than DIC. The JagsUI package does not provide a method to extract WAIC from a bayesian model so I am trying to use the rjags …

2023年7月15日 · How to compare WAIC values when they are negative? Is it still the lower the better? I got two complex Gaussian models with continuous probability density and the WAIC value are -8351 …

2023年6月10日 · Understanding LOO / WAIC for Bayesian models selection Ask Question Asked 3 years, 1 month ago Modified 3 years, 1 month ago

2018年1月25日 · I would like to use WAIC to help with model selection, where the models are simple linear regressions with Bayesian inference, non-flat priors and MCMC estimation. I am currently …

2017年9月26日 · WAIC and PSIS-LOO are connected so that if PSIS-LOO fails then WAIC fails even more (Aki Vehtari, Andrew Gelman and Jonah Gabry (2017). Practical Bayesian model evaluation …

2023年6月5日 · The WAIC formula appears to have a similar calculation, but with the addition of a logarithm (not of interest) and a penalty for likelihood variance. As a result, it seems that, in the case …

2018年3月6日 · I have a Bayesian Hierarchical model using JAGS. In order to find the best model, I have compared the DIC of two models but It's not reliable. So, I decided to calculate WAIC from …