Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Elsevier OA CC-By Corpus   We introduce the Elsevier OA CC-BY corpus. This is the first open corpus of
Scientific Research papers which has a representative sample from across
scientific disciplines. This corpus not only includes the full text of the
article, but also the metadata of the documents, along with the bibliographic
information for each reference.

17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio