?

Early Universe

 ~linear

Gravity

Late Universe

Non-linear 

Credit: S. Codis+16

Cross-correlation with haloes

Voids

Clusters

But, can we estimate densities realistically?

?

Cross-correlation between quintiles and haloes

Simulated Data

Data

Prior

Forwards model

Density Estimation with normalising flows

Input

x

What ML can do for cosmology

• ML to accelerate non-linear predictions and density estimation

• Can ML extract **all** the information that there is at the field-level in the non-linear regime?
  • Compare data and simulations, point us to the missing pieces?

cuestalz@mit.edu

Contact me for anything related to Astro and ML!