Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Public risk perception and emotion on Twitter during the Covid-19
  pandemic   Successful navigation of the Covid-19 pandemic is predicated on public
cooperation with safety measures and appropriate perception of risk, in which
emotion and attention play important roles. Signatures of public emotion and
attention are present in social media data, thus natural language analysis of
this text enables near-to-real-time monitoring of indicators of public risk
perception. We compare key epidemiological indicators of the progression of the
pandemic with indicators of the public perception of the pandemic constructed
from ~20 million unique Covid-19-related tweets from 12 countries posted
between 10th March -- 14th June 2020. We find evidence of psychophysical
numbing: Twitter users increasingly fixate on mortality, but in a decreasingly
emotional and increasingly analytic tone. Semantic network analysis based on
word co-occurrences reveals changes in the emotional framing of Covid-19
casualties that are consistent with this hypothesis. We also find that the
average attention afforded to national Covid-19 mortality rates is modelled
accurately with the Weber-Fechner and power law functions of sensory
perception. Our parameter estimates for these models are consistent with
estimates from psychological experiments, and indicate that users in this
dataset exhibit differential sensitivity by country to the national Covid-19
death rates. Our work illustrates the potential utility of social media for
monitoring public risk perception and guiding public communication during
crisis scenarios.

11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an