Search Results for author: Jonathan Gair

Found 9 papers, 6 papers with code

Adapting to noise distribution shifts in flow-based gravitational-wave inference

no code implementations16 Nov 2022 Jonas Wildberger, Maximilian Dax, Stephen R. Green, Jonathan Gair, Michael Pürrer, Jakob H. Macke, Alessandra Buonanno, Bernhard Schölkopf

Deep learning techniques for gravitational-wave parameter estimation have emerged as a fast alternative to standard samplers $\unicode{x2013}$ producing results of comparable accuracy.

Neural Importance Sampling for Rapid and Reliable Gravitational-Wave Inference

1 code implementation11 Oct 2022 Maximilian Dax, Stephen R. Green, Jonathan Gair, Michael Pürrer, Jonas Wildberger, Jakob H. Macke, Alessandra Buonanno, Bernhard Schölkopf

This shows a median sample efficiency of $\approx 10\%$ (two orders-of-magnitude better than standard samplers) as well as a ten-fold reduction in the statistical uncertainty in the log evidence.

Group equivariant neural posterior estimation

1 code implementation ICLR 2022 Maximilian Dax, Stephen R. Green, Jonathan Gair, Michael Deistler, Bernhard Schölkopf, Jakob H. Macke

We here describe an alternative method to incorporate equivariances under joint transformations of parameters and data.

Real-time gravitational-wave science with neural posterior estimation

1 code implementation23 Jun 2021 Maximilian Dax, Stephen R. Green, Jonathan Gair, Jakob H. Macke, Alessandra Buonanno, Bernhard Schölkopf

We demonstrate unprecedented accuracy for rapid gravitational-wave parameter estimation with deep learning.

Complete parameter inference for GW150914 using deep learning

2 code implementations7 Aug 2020 Stephen R. Green, Jonathan Gair

By training with the detector noise power spectral density estimated at the time of GW150914, and conditioning on the event strain data, we use the neural network to generate accurate posterior samples consistent with analyses using conventional sampling techniques.

Bayesian Inference Density Estimation

Gravitational-wave parameter estimation with autoregressive neural network flows

no code implementations18 Feb 2020 Stephen R. Green, Christine Simpson, Jonathan Gair

We introduce the use of autoregressive normalizing flows for rapid likelihood-free inference of binary black hole system parameters from gravitational-wave data with deep neural networks.

STROOPWAFEL: Simulating rare outcomes from astrophysical populations, with application to gravitational-wave sources

1 code implementation2 May 2019 Floor S. Broekgaarden, Stephen Justham, Selma E. de Mink, Jonathan Gair, Ilya Mandel, Simon Stevenson, Jim W. Barrett, Alejandro Vigna-Gómez, Coenraad J. Neijssel

We implement the algorithm in the binary population synthesis code COMPAS, and compare the efficiency of our implementation to the standard method of Monte Carlo sampling from the birth probability distributions.

High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics Data Analysis, Statistics and Probability

A Precessing Numerical Relativity Waveform Surrogate Model for Binary Black Holes: A Gaussian Process Regression Approach

1 code implementation21 Mar 2019 Daniel Williams, Ik Siong Heng, Jonathan Gair, James A Clark, Bhavesh Khamesra

Numerical relativity simulations are, however, computationally expensive, leading to the need for a surrogate model which can predict waveform signals in regions of the physical parameter space which have not been probed directly by simulation.

General Relativity and Quantum Cosmology Data Analysis, Statistics and Probability

Cannot find the paper you are looking for? You can Submit a new open access paper.