Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Picasso, Matisse, or a Fake? Automated Analysis of Drawings at the
  Stroke Level for Attribution and Authentication
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph