2 papers
stat.AP2026
Scalable Amortized Variational Inference for Non-Poisson Buy-'Til-You-Die Models
Sulagna Ghosh, Aaron Schein
Despite the wide variety of existing Buy-`Til-You-Die (BTYD) models, nearly all rely upon the convenient assumption of transactions following a Poisson process. As modern customer…
math.ST2025
Stein's unbiased risk estimate and Hyvärinen's score matching
Sulagna Ghosh, Nikolaos Ignatiadis, Frederic Koehler +1
Given a collection of observed signals corrupted with Gaussian noise, how can we learn to optimally denoise them? This fundamental problem arises in both empirical Bayes and genera…