Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The role in the Virtual Astronomical Observatory in the era of massive
  data sets   The Virtual Observatory (VO) is realizing global electronic integration of
astronomy data. One of the long-term goals of the U.S. VO project, the Virtual
Astronomical Observatory (VAO), is development of services and protocols that
respond to the growing size and complexity of astronomy data sets. This paper
describes how VAO staff are active in such development efforts, especially in
innovative strategies and techniques that recognize the limited operating
budgets likely available to astronomers even as demand increases. The project
has a program of professional outreach whereby new services and protocols are
evaluated.

37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys