The Universe in a nutshell
Learning the optimal summary statistic
Carolina Cuesta-Lazaro
1. COLLECT DATA
2. SUMMARISE IN N-PCF
3. CONSTRAIN COSMOLOGY
\Omega_M
\Omega_\Lambda
\sigma_8
2. UNCERTAINTIES
1. INTERPRETABILITY
3. ROBUSTNESS
Input
x
Representation network
f
Representation
(Summary statistic)
r = f(x)
Output
o = g(r)
DESI forecasts: 2PCF
Field level information content
+
-
Lensing
-
Lensing-Clustering cross-correlation
-
Simulation-based inference / Application to data
-
Galaxy Clustering
-
Galaxy-Halo connection
-
Representation/Machine learning
UCSC/Stanford
By carol cuesta
