1 code implementation • 27 Jun 2023 • A. Asensio Ramos, M. C. M. Cheung, I. Chifu, R. Gafeira
The application of machine learning in solar physics has the potential to greatly enhance our understanding of the complex processes that take place in the atmosphere of the Sun.
1 code implementation • 21 Jun 2023 • A. Asensio Ramos, S. Esteban Pozuelo, C. Kuckein
In this method, the image restoration problem is solved with a gradient descent method that is unrolled and accelerated aided by a few small neural networks.
1 code implementation • 12 Jun 2023 • C. Westendorp Plaza, A. Asensio Ramos, C. Allende Prieto
Given the widespread availability of grids of models for stellar atmospheres, it is necessary to recover intermediate atmospheric models by means of accurate techniques that go beyond simple linear interpolation and capture the intricacies of the data.
1 code implementation • 20 Nov 2021 • A. Vicente Arévalo, A. Asensio Ramos, S. Esteban Pozuelo
We find an optimal architecture for the graph network for predicting the departure coefficients of the levels of an atom from the physical conditions of a model atmosphere.
1 code implementation • 20 Aug 2021 • A. Asensio Ramos, C. Diaz Baso, O. Kochukhov
We use amortized neural posterior estimation to produce a model that approximates the high-dimensional posterior distribution for spectroscopic observations of selected spectral ranges sampled at arbitrary rotation phases.
1 code implementation • 8 Dec 2020 • A. Asensio Ramos, E. Pallé
More importantly, if exoplanets are partially cloudy like the Earth is, we show that one can potentially map the distribution of persistent clouds that always occur on the same position on the surface (associated to orography and sea surface temperatures) together with non-persistent clouds that move across the surface.
1 code implementation • 2 Jun 2020 • A. Asensio Ramos, N. Olspert
The optimization of this loss function allows an end-to-end training of a machine learning model composed of three neural networks.
1 code implementation • 7 Apr 2019 • A. Asensio Ramos, C. Diaz Baso
Our aim is to develop a new inversion code based on the application of convolutional neural networks that can quickly provide a three-dimensional cube of thermodynamical and magnetic properties from the interpretation of two-dimensional maps of Stokes profiles.
1 code implementation • 9 Jun 2017 • C. J. Diaz Baso, A. Asensio Ramos
We test Enhance against Hinode data that has been degraded to a 28 cm diameter telescope showing very good consistency.
1 code implementation • 15 Mar 2017 • A. Asensio Ramos, I. S. Requerey, N. Vitas
These components are typically estimated using methods based on local correlation tracking.