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Constraining cosmological parameters from N-body simulations with Bayesian Neural Networks

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arxiv 2112.11865 v1 pith:UHUGZWHM submitted 2021-12-22 astro-ph.CO stat.ML

Constraining cosmological parameters from N-body simulations with Bayesian Neural Networks

classification astro-ph.CO stat.ML
keywords simulationsbayesiancosmologicalnetworksneuralparametersabilityadvantages
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this paper, we use The Quijote simulations in order to extract the cosmological parameters through Bayesian Neural Networks. This kind of model has a remarkable ability to estimate the associated uncertainty, which is one of the ultimate goals in the precision cosmology era. We demonstrate the advantages of BNNs for extracting more complex output distributions and non-Gaussianities information from the simulations.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Learning Cosmology from Nearest Neighbour Statistics

    astro-ph.CO 2025-11 conditional novelty 6.0

    Nearest-neighbour distance maps, combined with kNN-CDFs in a hybrid neural network, constrain Ωm and σ8 from Quijote halos with R2=0.80 and 0.93, matching or beating point-cloud methods at a fraction of the compute.