Machine learning assisted parallel inversions

by Ricardo Gafeira

Hosted by Instituto de AstrofĂ­sica de AndalucĂ­a - CSIC on January 17, 2019

Abstract

With the increase of data volume and the need of more complex inversion codes to interpret and analyze solar observations, it is necessary to develop new tools to boost inversions and reduce computation times and costs.

In this presentation, I discuss the possibilities and limitations of using machine learning as a tool to estimate optimum initial physical atmospheric models necessary for initializing spectral line inversions. Tests have been carried out for the SIR and DeSIRer inversion codes. This approach allows firstly to reduce the number of cycles in the inversion and increase the number of nodes and secondly to automatically cluster pixels which is an important step to invert maps where completelly different regimes are present.

Finally, I also present a warp for SIR and DeSIRer inversion codes that allows the user to easily set up parallel inversions.