Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Social Politics: Agenda Setting and Political Communication on Social
  Media   Social media play an increasingly important role in political communication.
Various studies investigated how individuals adopt social media for political
discussion, to share their views about politics and policy, or to mobilize and
protest against social issues. Yet, little attention has been devoted to the
main actors of political discussions: the politicians. In this paper, we
explore the topics of discussion of U.S. President Obama and the 50 U.S. State
Governors using Twitter data and agenda-setting theory as a tool to describe
the patterns of daily political discussion, uncovering the main topics of
attention and interest of these actors. We examine over one hundred thousand
tweets produced by these politicians and identify seven macro-topics of
conversation, finding that Twitter represents a particularly appealing vehicle
of conversation for American opposition politicians. We highlight the main
motifs of political conversation of the two parties, discovering that
Republican and Democrat Governors are more or less similarly active on Twitter
but exhibit different styles of communication. Finally, by reconstructing the
networks of occurrences of Governors' hashtags and keywords related to
political issues, we observe that Republicans form a tight core, with a
stronger shared agenda on many issues of discussion.

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The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org