Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Urban Vibes and Rural Charms: Analysis of Geographic Diversity in Mobile
  Service Usage at National Scale
19
The categories of this paper are: eess
18
The categories of this paper are: econ
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci