Search Results for author: Arnaud Delaunoy

Found 6 papers, 5 papers with code

Balancing Simulation-based Inference for Conservative Posteriors

1 code implementation21 Apr 2023 Arnaud Delaunoy, Benjamin Kurt Miller, Patrick Forré, Christoph Weniger, Gilles Louppe

We show empirically that the balanced versions tend to produce conservative posterior approximations on a wide variety of benchmarks.

Towards Reliable Simulation-Based Inference with Balanced Neural Ratio Estimation

1 code implementation29 Aug 2022 Arnaud Delaunoy, Joeri Hermans, François Rozet, Antoine Wehenkel, Gilles Louppe

In this work, we introduce Balanced Neural Ratio Estimation (BNRE), a variation of the NRE algorithm designed to produce posterior approximations that tend to be more conservative, hence improving their reliability, while sharing the same Bayes optimal solution.

SAE: Sequential Anchored Ensembles

1 code implementation30 Dec 2021 Arnaud Delaunoy, Gilles Louppe

Anchored ensembles approximate the posterior by training an ensemble of neural networks on anchored losses designed for the optima to follow the Bayesian posterior.

A Trust Crisis In Simulation-Based Inference? Your Posterior Approximations Can Be Unfaithful

4 code implementations13 Oct 2021 Joeri Hermans, Arnaud Delaunoy, François Rozet, Antoine Wehenkel, Volodimir Begy, Gilles Louppe

We present extensive empirical evidence showing that current Bayesian simulation-based inference algorithms can produce computationally unfaithful posterior approximations.

Lightning-Fast Gravitational Wave Parameter Inference through Neural Amortization

no code implementations24 Oct 2020 Arnaud Delaunoy, Antoine Wehenkel, Tanja Hinderer, Samaya Nissanke, Christoph Weniger, Andrew R. Williamson, Gilles Louppe

Gravitational waves from compact binaries measured by the LIGO and Virgo detectors are routinely analyzed using Markov Chain Monte Carlo sampling algorithms.

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