Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Popularity Evolution of Professional Users on Facebook   Popularity in social media is an important objective for professional users
(e.g. companies, celebrities, and public figures, etc). A simple yet prominent
metric utilized to measure the popularity of a user is the number of fans or
followers she succeed to attract to her page. Popularity is influenced by
several factors which identifying them is an interesting research topic. This
paper aims to understand this phenomenon in social media by exploring the
popularity evolution for professional users in Facebook. To this end, we
implemented a crawler and monitor the popularity evolution trend of 8k most
popular professional users on Facebook over a period of 14 months. The
collected dataset includes around 20 million popularity values and 43 million
posts. We characterized different popularity evolution patterns by clustering
the users temporal number of fans and study them from various perspectives
including their categories and level of activities. Our observations show that
being active and famous correlate positively with the popularity trend.

21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int