Search Results for author: Hector J. Hortua

Found 4 papers, 1 papers with code

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

no code implementations22 Dec 2021 Hector J. Hortua

In this paper, we use The Quijote simulations in order to extract the cosmological parameters through Bayesian Neural Networks.

Accelerating MCMC algorithms through Bayesian Deep Networks

no code implementations29 Nov 2020 Hector J. Hortua, Riccardo Volpi, Dimitri Marinelli, Luigi Malago

Markov Chain Monte Carlo (MCMC) algorithms are commonly used for their versatility in sampling from complicated probability distributions.

Reliable Uncertainties for Bayesian Neural Networks using Alpha-divergences

no code implementations15 Aug 2020 Hector J. Hortua, Luigi Malago, Riccardo Volpi

Bayesian Neural Networks (BNNs) often result uncalibrated after training, usually tending towards overconfidence.

regression

Parameters Estimation for the Cosmic Microwave Background with Bayesian Neural Networks

2 code implementations19 Nov 2019 Hector J. Hortua, Riccardo Volpi, Dimitri Marinelli, Luigi Malagò

In the second part of the paper, we present a guide to the training and calibration of a successful multi-channel BNN for the CMB temperature and polarization map.

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