Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stokes Inversion based on Convolutional Neural Networks   Spectropolarimetric inversions are routinely used in the field of Solar
Physics for the extraction of physical information from observations. The
application to two-dimensional fields of view often requires the use of
supercomputers with parallelized inversion codes. Even in this case, the
computing time spent on the process is still very large. 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. We train two different architectures of fully convolutional neural
networks. To this end, we use the synthetic Stokes profiles obtained from two
snapshots of three-dimensional magneto-hydrodynamic numerical simulations of
different structures of the solar atmosphere. We provide an extensive analysis
of the new inversion technique, showing that it infers the thermodynamical and
magnetic properties with a precision comparable to that of standard inversion
techniques. However, it provides several key improvements: our method is around
one million times faster, it returns a three-dimensional view of the physical
properties of the region of interest in geometrical height, it provides
quantities that cannot be obtained otherwise (pressure and Wilson depression)
and the inferred properties are decontaminated from the blurring effect of
instrumental point spread functions for free. The code is provided for free on
a specific repository, with options for training and evaluation.

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The categories of this paper are: hep-ex
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: physics
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-th
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat