Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Behaviour of Deviant Communities in Online Social Networks   On-line social networks are complex ensembles of inter-linked communities
that interact on different topics. Some communities are characterized by what
are usually referred to as deviant behaviors, conducts that are commonly
considered inappropriate with respect to the society's norms or moral
standards. Eating disorders, drug use, and adult content consumption are just a
few examples. We refer to such communities as deviant networks. It is commonly
believed that such deviant networks are niche, isolated social groups, whose
activity is well separated from the mainstream social-media life. According to
this assumption, research studies have mostly considered them in isolation. In
this work we focused on adult content consumption networks, which are present
in many on-line social media and in the Web in general. We found that few small
and densely connected communities are responsible for most of the content
production. Differently from previous work, we studied how such communities
interact with the whole social network. We found that the produced content
flows to the rest of the network mostly directly or through bridge-communities,
reaching at least 450 times more users. We also show that a large fraction of
the users can be inadvertently exposed to such content through indirect content
resharing. We also discuss a demographic analysis of the producers and
consumers networks. Finally, we show that it is easily possible to identify a
few core users to radically uproot the diffusion process. We aim at setting the
basis to study deviant communities in context.

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The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: stat
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th