Search Results for author: Héctor J. Hortúa

Found 4 papers, 0 papers with code

Forecasting VIX using Bayesian Deep Learning

no code implementations30 Jan 2024 Héctor J. Hortúa, Andrés Mora-Valencia

Furthermore, we found out that MNF with Gaussian prior outperforms Reparameterization Trick and Flipout models in terms of precision and uncertainty predictions.

Probabilistic Deep Learning

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

no code implementations9 Jan 2023 Héctor J. Hortúa, Luz Ángela García, Leonardo Castañeda C

In this work, we implement multiplicative normalizing flows (MNFs), a family of approximate posteriors for the parameters of BNNs with the purpose of enhancing the flexibility of the variational posterior distribution, to extract $\Omega_m$, $h$, and $\sigma_8$ from the QUIJOTE simulations.

Uncertainty Quantification

Constraining the Reionization History using Bayesian Normalizing Flows

no code implementations14 May 2020 Héctor J. Hortúa, Luigi Malago, Riccardo Volpi

Additionally, we demonstrate the advantages of Normalizing Flows (NF) combined with BNNs, being able to model more complex output distributions and thus capture key information as non-Gaussianities in the parameter conditional density distribution for astrophysical and cosmological dataset.

Parameters Estimation from the 21 cm signal using Variational Inference

no code implementations4 May 2020 Héctor J. Hortúa, Riccardo Volpi, Luigi Malagò

Upcoming experiments such as Hydrogen Epoch of Reionization Array (HERA) and Square Kilometre Array (SKA) are intended to measure the 21cm signal over a wide range of redshifts, representing an incredible opportunity in advancing our understanding about the nature of cosmic Reionization.

Variational Inference

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