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Tailored graph ensembles as proxies or null models for real networks I: tools for quantifying structure

A Annibale1, A C C Coolen1,2, L P Fernandes2, F Fraternali2 and J Kleinjung3

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We study the tailoring of structured random graph ensembles to real networks, with the objective of generating precise and practical mathematical tools for quantifying and comparing network topologies macroscopically, beyond the level of degree statistics. Our family of ensembles can produce graphs with any prescribed degree distribution and any degree–degree correlation function; its control parameters can be calculated fully analytically, and as a result we can calculate (asymptotically) formulae for entropies and complexities and for information-theoretic distances between networks, expressed directly and explicitly in terms of their measured degree distribution and degree correlations.


PACS

89.75.Hc Networks and genealogical trees

02.50.Ng Distribution theory and Monte Carlo studies

02.10.Ox Combinatorics; graph theory

89.75.Fb Structures and organization in complex systems

89.70.-a Information and communication theory

MSC

05C75 Structural characterization of types of graphs

94A17 Measures of information, entropy

05C80 Random graphs

62Exx Distribution theory (See also 60Exx)

Subjects

Mathematical physics

Computational physics

Statistical physics and nonlinear systems

Dates

Issue 48 (4 December 2009)

Received 14 August 2009, in final form 6 October 2009

Published 11 November 2009



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