Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Complex Network Analysis of Indian Railway Zones   Indian Railway Network has been analyzed on the basis of number of trains
directly linking two railway zones. The network has been displayed as a
weighted graph where the weights denote the number of trains between the zones.
It may be pointed out that each zone is a complex network in itself and may
depict different characteristic features. The zonal network therefore can be
considered as a network of complex networks. In this paper, self links,
in-degree and out-degree of each zone have been computed which provides
information about the inter and intra zonal connectivity. Degree passenger
correlation which gives an idea about number of trains and passengers
originating from a particular zone which might play a role in policy making
decisions has also been studied. Some other complex network parameters like
betweenness, clustering coefficient and cliques have been obtained to get more
insight about the complex Indian zonal network.

9
The categories of this paper are: nlin
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin