Hoang Phuc Hau Luu

Posterior sampling by source-space MCMC via prior-based few-step transport maps

Bayesian inference increasingly uses informative but implicit priors represented only by samples, such as historical ensembles, simulator outputs, and pretrained generative models. The same computational problem appears in the test-time guidance task (generalized Bayes), where an explicit positive weight, e.g., an expo...