DOI

Spectropolarimetric observations are broadly used for the extraction of physical information in the field of solar physics. Inferring magnetic and thermodynamic information from these observations includes inversion problem solving. Assuming that spectropolarimetric profiles are produced by a given atmospheric model, it is required to find the best sets of parameters within such a model corresponding to particular observations. Standard optimization approach often requires large computational resources and even in this case still performs very slowly. Previously it was suggested to use different strategies with artificial neural networks to overcome problems with computational power. It was previously shown that neural networks could be a viable alternative to the standard least square approach, but they could not replace it. Most papers only cover Magnetic Fields Vector parameter inferring, whereas the commonly used solar atmosphere model includes 11 parameters. In this paper we provide an end-to-end deep learning framework for full parameter inferring as well as comparison of several approaches for multi-output predictions. For this purpose, we trained one common network to predict all parameters, a set of parameter-oriented independent networks to deal with each parameter, and finally a combination of the above: a set of parameter-oriented independent networks built upon several layers of the pretrained common network. Our results show that using a partly independent network built upon a pretrained network provides the best results and demonstrates better generalization performance.

Язык оригиналаанглийский
Название основной публикацииAdvances in Neural Computation, Machine Learning, and Cognitive Research 5 - Selected Papers from the 23rd International Conference on Neuroinformatics, 2021
РедакторыBoris Kryzhanovsky, Witali Dunin-Barkowski, Vladimir Redko, Yury Tiumentsev, Valentin V. Klimov
ИздательSpringer Nature
Страницы299-307
Число страниц9
ISBN (печатное издание)9783030915803
DOI
СостояниеОпубликовано - 2021
Событие23rd International Conference on Neuroinformatics, 2021 - Moscow, Российская Федерация
Продолжительность: 18 окт 202122 окт 2021

Серия публикаций

НазваниеStudies in Computational Intelligence
Том1008 SCI
ISSN (печатное издание)1860-949X
ISSN (электронное издание)1860-9503

конференция

конференция23rd International Conference on Neuroinformatics, 2021
Страна/TерриторияРоссийская Федерация
ГородMoscow
Период18/10/2122/10/21

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