Tools WG session of GDR Cophy

Session

New possibilities

POSSIBILITIES

Nov 19, 2024, 9:30 AM

IAP

8. CMB likelihood

Lennart Balkenhol (IAP)

11/19/24, 9:30 AM

11. Lensing modeling with JAX in LSST

Justine Zeghal (APC, CNRS)

11/19/24, 4:00 PM

5. Fast likelihood for SN Ia using JAX

Marc Betoule (LPNHE)

11/19/24, 4:45 PM

14. JAX-Healpy: a JAX package compatible with the Healpy library

Magdy Morshed (INFN Ferrara)

11/20/24, 9:50 AM

The Healpy package is widely used in cosmology, both for the handling of the HEALPix pixelization and the associated spherical harmonic transforms. The current Healpy package implementation is not JAX friendly, as the spherical harmonics implementation is based in C++, which prevents us to possibly accelerate the associated routines using JIT or to run them on GPUs. In this talk, we will...

15. s2scat : a software in JAX for generative models on the sphere using Scattering Transforms

Louise Mousset (LPENS)

11/20/24, 10:40 AM

Scattering Transforms are a new type of summary statistics recently developed for the study of highly non-Gaussian processes. These statistics can be used to build generative data models, and even to develop new component separation techniques. In the context of upcoming cosmological surveys, such as LiteBIRD for the cosmic microwave background polarisation or the Vera C. Rubin Observatory and...

16. FURAX: a modular JAX toolbox for solving inverse problems in science

Pierre Chanial (APC)

11/20/24, 11:10 AM

Modern scientific data analyses involve complex models, presenting significant challenges in both data volume and computation. We present FURAX (Framework for Unified and Robust data Analysis with JAX), an open-source Python library that provides building blocks to construct instrument and noise models in a modular fashion, that benefit from the cutting-edge optimisation and GPU utilisation...

4. BORG

Guilhem Lavaux (IAP)