An evolving model of undirected networks based on microscopic biological interaction systems.
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ABSTRACT: With protein or gene interaction systems as the background, this paper proposes an evolving model of biological undirected networks, which are consistent with some plausible mechanisms in biology. Through introducing a rule of preferential duplication of a node inversely proportional to the degree of existing nodes and an attribute of the age of the node (the older, the more influence), by which the probability of a node receiving re-wiring links is chosen, the model networks generated in certain parameter conditions could reproduce series of statistic topological characteristics of real biological graphs, including the scale-free feature, small world effect, hierarchical modularity, limited structural robustness, and disassortativity of degree-degree correlation.
SUBMITTER: Tan L
PROVIDER: S-EPMC2669123 | biostudies-other | 2009 May
REPOSITORIES: biostudies-other
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