Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Welcome or Not-Welcome: Reactions to Refugee Situation on Social Media   For many European countries, in 2015 the refugee situation developed from a
remote tragedy reported upon in the news to a situation they have to deal with
in their own neighborhood. Driven by this observation, we investigated the
development of the perception of the refugee situation during 2015 in Twitter.
Starting from a dataset of 1.7 Million tweets covering refugee-related topics
from May to December 2015, we investigated how the discussion on refugees
changed over time, in different countries as well as in relationship with the
evolution of the actual situation. In this paper we report and discuss our
findings from checking a set of hypotheses, such as that the closeness to the
actual situation would influence the intensity and polarity of discussions and
that news media takes a mediating role between the actual and perceived refugee
situation.

9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn