Issue |
EPL
Volume 78, Number 4, May 2007
|
|
---|---|---|
Article Number | 48005 | |
Number of page(s) | 6 | |
Section | Interdisciplinary Physics and Related Areas of Science and Technology | |
DOI | https://doi.org/10.1209/0295-5075/78/48005 | |
Published online | 08 May 2007 |
A quantitative measure for path structures of complex networks
Department of Physics, Norwegian University of Science and Technology - N-7491 Trondheim, Norway
Received:
15
February
2007
Accepted:
10
April
2007
In this paper we present a generalised version of the classical cluster coefficient, which also can be applied to networks with directed links. This generalisation takes into account more than the immediate nearest neighbours, giving more detailed information about the network structure than the classical version. The introduced concept is compared to earlier generalisation attempts, and it is applied to a directed version of the protein interaction network of the yeast cell S. cerevisiae and networks generated by the growing preferential attachment model of Barabási and Albert. Finally, we give some ideas on how our concept is related to modularity and community structures.
PACS: 89.75.Hc – Networks and genealogical trees / 89.75.Fb – Structures and organization in complex systems / 05.90.+m – Other topics in statistical physics, thermodynamics, and nonlinear dynamical systems
© Europhysics Letters Association, 2007
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