Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analyzing user behavior of the micro-blogging website Sinaweibo during
  hot social events   The spread and resonance of users' opinions on SinaWeibo, the most popular
micro-blogging website in China, are tremendously influential, having
significantly affected the processes of many real-world hot social events. We
select 21 hot events that were widely discussed on SinaWeibo in 2011, and do
some statistical analyses. Our main findings are that (i) male users are more
likely to be involved, (ii) messages that contain pictures and those posted by
verified users are more likely to be reposted, while those with URLs are less
likely, (iii) gender factor, for most events, presents no significant
difference in reposting likelihood.

23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci