activity
20102026
most citedCOSMOPOWER: emulating cosmological power spectra for accelerated Bayesian inference from next-generation surveys

181 citations · 265 across the 10 of their papers we have counts for

collaborators

11 papers

astro-ph.GA2026

KiDS-DR5: Exploring dust transport in dark matter halos of galaxies

Eray Genc, Angus H. Wright, Hendrik Hildebrandt +12

We analyse a well-defined sample of galaxies from the final data release of the Kilo-Degree Survey (KiDS-DR5), selected using magnitude, photometric redshift, and stellar mass cuts…

astro-ph.CO2026

A guide to choosing data compression methods for cosmological inference

Susan Pyne, Benjamin Joachimi, Calum Gordon +1

We provide a pedagogical guide to help researchers choose an appropriate compression method for cosmological inference and numerical covariance estimation, trading off the balance…

astro-ph.CO2025★ 2 cited

Transfer learning for multifidelity simulation-based inference in cosmology

Alex A. Saoulis, Davide Piras, Niall Jeffrey +3

Simulation-based inference (SBI) enables cosmological parameter estimation when closed-form likelihoods or models are unavailable. However, SBI relies on machine learning for neura…

physics.geo-ph2024★ 7 cited

Full-waveform earthquake source inversion using simulation-based inference

A. A. Saoulis, D. Piras, A. Spurio Mancini +2

This paper presents a novel framework for full-waveform seismic source inversion using simulation-based inference (SBI). Traditional probabilistic approaches often rely on simplify…

astro-ph.CO2024★ 6 cited

Psi-GAN: A power-spectrum-informed generative adversarial network for the emulation of large-scale structure maps across cosmologies and redshifts

Prabh Bhambra, Benjamin Joachimi, Ofer Lahav +1

Simulations of the dark matter distribution throughout the Universe are essential in order to analyse data from cosmological surveys. -body simulations are computationally expen…

astro-ph.CO2022★ 18 cited

Fast and realistic large-scale structure from machine-learning-augmented random field simulations

Davide Piras, Benjamin Joachimi, Francisco Villaescusa-Navarro

Producing thousands of simulations of the dark matter distribution in the Universe with increasing precision is a challenging but critical task to facilitate the exploitation of cu…

astro-ph.CO2021★ 181 cited

COSMOPOWER: emulating cosmological power spectra for accelerated Bayesian inference from next-generation surveys

A. Spurio Mancini, D. Piras, J. Alsing +2

We present , a suite of neural cosmological power spectrum emulators providing orders-of-magnitude acceleration for parameter estimation from two-point statistics…

physics.geo-ph2021★ 8 cited

Towards fast machine-learning-assisted Bayesian posterior inference of microseismic event location and source mechanism

Davide Piras, Alessio Spurio Mancini, Ana M. G. Ferreira +2

Bayesian inference applied to microseismic activity monitoring allows the accurate location of microseismic events from recorded seismograms and the estimation of the associated un…

physics.geo-ph2020★ 14 cited

Accelerating Bayesian microseismic event location with deep learning

A. Spurio Mancini, D. Piras, A. M. G. Ferreira +2

We present a series of new open source deep learning algorithms to accelerate Bayesian full waveform point source inversion of microseismic events. Inferring the joint posterior pr…

astro-ph.CO2011★ 8 cited

Relations between three-point configuration space shear and convergence statistics

X. Shi, P. Schneider, B. Joachimi

With the growing interest in and ability of using weak lensing studies to probe the non-Gaussian properties of the matter density field, there is an increasing need for the study o…

astro-ph.CO2010★ 21 cited

Controlling intrinsic-shear alignment in three-point weak lensing statistics

X. Shi, B. Joachimi, P. Schneider

Three-point weak lensing statistics provide cosmic information complementary to that of two-point statistics. However, both statistics suffer from intrinsic-shear alignment, which…