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stat.ML2026
Two-way Guidance: Simultaneous Learning of Summary Statistics for Generative Bayes
Percy S. Zhai, Max Pachman, Peverel D. Shipley +1
Bayesian simulation-based inference (SBI) can struggle to recover increasingly concentrated posteriors as observation size grows. We consider learning sufficient summary statistics…
stat.ML2026
Possibilistic Radial Transport for Approximate IM Inference
Jungeum Kim, Percy Zhai
Probing the hypothesis space after seeing the data remains valid under possibilistic inferential models (IMs), provided the significance level stays fixed. The price is computation…
stat.ML2025
Conditional Flow Matching for Bayesian Posterior Inference
Percy S. Zhai, So Won Jeong, Veronika Ročková
We propose a generative multivariate posterior sampler via flow matching. It offers a simple training objective, and does not require access to likelihood evaluation. The method le…