Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A two-layer team-assembly model for invention networks   Companies are exposed to rigid competition, so they seek how best to improve
the capabilities of their innovations. One strategy is to collaborate with
other companies in order to speed up their own innovations. Such inter-company
collaborations are conducted by inventors belonging to the companies. At the
same time, the inventors also seem to be affected by past collaborations
between companies. Therefore, interdependency of two networks, namely inventor
and company networks, exists.
  This paper discusses a model that replicates two-layer networks extracted
from patent data of Japan and the United States in terms of degree
distributions. The model replicates two-layer networks with the
interdependency. Moreover it is the only model that uses local information,
while other models have to use overall information, which is unrealistic. In
addition, the proposed model replicates empirical data better than other
models.

4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess