Throughput Computing Week 2026

Using OSG to enable the development of Simulation based inference for Cosmology

Jun 11, 2026, 9:00 AM

20m

Howard Auditorium (Fluno Center on the University of Wisconsin-Madison Campus)

Keeping an Eagle Eye On Things (monitoring)

Speaker

Yuanyuan Zhang (NSF NOIRLab)

Description

I will describe how OSG has enabled us to develop a simulation-based inference (SBI) method for cosmology analysis. For this application, we train an SBI model, based on a mixture density network (MDN), to derive posteriors for cosmological parameters from a data vector that describe observations of galaxy clusters in the universe. We use analytic models to generate mocks of the observational data vectors needed for building and testing the SBI method, and OSG enabled us to generate these large training and testing data sets.