no code implementations • 30 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.
no code implementations • 9 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.
no code implementations • 14 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.
no code implementations • 4 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.