Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Epidemic processes on self-propelled particles: continuum and
  agent-based modelling
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg