Philippe Baratta: Statistical methods in observational Cosmology

Machine Learning Seminar presentation

Topic: Statistical methods in observational Cosmology

Speaker: Dr. Philippe Baratta, Aix-Marseille University and CPPM, Marseille, France

Time: 2023.01.18 at 10:00 a.m. (CET)

How to join: Please contact Jakub Lengiewicz

Format: 30′ presentation + 30′ discussion


Modern Cosmology is now a data science. The large amount of cosmological models aiming at describing the evolution of structures in the Universe needs to be confronted to observations. To do so, it is common in this field to resort to Bayesian statistics, although fraught with many pitfalls of interpretation. In this presentation, I will introduce the key statistical observables and tools of such an analysis. From the 3D cartography of galaxies in the universe, I will try to show that their statistical distribution is a mine of physical quantity information.