2 code implementations • 30 Nov 2020 • Christian Pedersen, Andreu Font-Ribera, Keir K. Rogers, Patrick McDonald, Hiranya V. Peiris, Andrew Pontzen, Anže Slosar
Our emulator is appropriate for cosmologies in which the linear matter power spectrum is described to percent level accuracy by just an amplitude and slope across the epoch of interest, and in the regime probed by eBOSS/DESI data.
Cosmology and Nongalactic Astrophysics
no code implementations • 11 Dec 2018 • Keir K. Rogers, Hiranya V. Peiris, Andrew Pontzen, Simeon Bird, Licia Verde, Andreu Font-Ribera
Starting with a Latin hypercube sampling (other schemes with good space-filling properties can be used), we iteratively augment the training set with extra simulations at new parameter positions which balance the need to reduce interpolation error while focussing on regions of high likelihood.
Cosmology and Nongalactic Astrophysics
