Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Complexity and Information Content of Simulated Universes   The emergence of a complex, large-scale organisation of cosmic matter into
the Cosmic Web is a beautiful exemplification of how complexity can be produced
by simple initial conditions and simple physical laws. In the epoch of Big Data
in astrophysics, connecting the stunning variety of multi-messenger
observations to the complex interplay of fundamental physical processes is an
open challenge. In this contribution, I discuss a few relevant applications of
Information Theory to the task of objectively measuring the complexity of
modern numerical simulations of the Universe. When applied to cosmological
simulations, complexity analysis makes it possible to measure the total
information necessary to model the cosmic web. It also allow us to monitor
which physical processes are mostly responsible for the emergence of complex
dynamical behaviour across cosmic epochs and environments, and possibly to
improve mesh refinement strategies in the future.

2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
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The categories of this paper are: atom-ph
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
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The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
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The categories of this paper are: physics
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom