Tools WG session of GDR Cophy

This working group (website here) is dedicated to raise awareness of new tools and methodology developed in the wider French community to do cosmology. The tools must be understood in a wide sense: it may be large software stack, online websites, or Mathematica© notebook.

This Working Group aims at sharing and helping the development of tools for which the needs are common to all the actors of the GDR.

It includes:

• tools that are oriented toward the predictions of cosmological observables (including non-linearities) and their relative theoretical systematic uncertainties such as Boltzmann solvers, numerical simulations, approximate methods for the non-linear evolution, and forward modeling,
• development of estimators for data analysis which are for example based on power spectra, and higher order statistics;
• mathematical methods for inference such as the one based on MCMC, Machine Learning, and minimizer;
• production of validation data, such as mock galaxy catalog, mock CMB maps;
• tools for symbolic-based computation in the cosmological context.

This session is dedicated particularly to the use of JAX, PyTorch, and others in cosmology.

The meeting will happen in salle des séminaires / Evry Schatzman (level -1) at the IAP on November 18-20 2024.