Two classes of bipartite networks: nested biological and social systems
Two classes of bipartite networks: nested biological and social systems
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Fecha
2008
Autores
Burgos, Enrique
Ceva, Horacio
Hernández, Laura
Perazzo, Roberto P. J.
Devoto, Mariano
Medan, Diego
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Resumen
"Bipartite graphs have received some attention in the study of social networks and of biological
mutualistic systems. A generalization of a previous model is presented, that evolves the topology
of the graph in order to optimally account for a given Contact Preference Rule between the two
guilds of the network. As a result, social and biological graphs are classified as belonging to two
clearly different classes. Projected graphs, linking the agents of only one guild, are obtained from
the original bipartite graph. The corresponding evolution of its statistical properties is also studied.
An example of a biological mutualistic network is analyzed in detail, and it is found that the model
provides a very good fitting of all the main statistical features. The model also provides a proper
qualitative description of the same features observed in social webs, suggesting the possible reasons
underlying the difference in the organization of these two kinds of bipartite networks."