Models and average properties of scale-free directed networks
2006 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1063-651X, Vol. 74, 026104-026104-7 p.Article in journal (Refereed) Published
We extend the merging model for undirected networks by Kim et al. [Eur. Phys. J. B 43, 369 (2004)] to directed networks and investigate the emerging scale-free networks. Two versions of the directed merging model, friendly and hostile merging, give rise to two distinct network types. We uncover that some nontrivial features of these two network types resemble two levels of a certain randomization/nonspecificity in the link reshuffling during network evolution. Furthermore, the same features show up, respectively, in metabolic networks and transcriptional networks. We introduce measures that single out the distinguishing features between the two prototype networks, as well as point out features that are beyond the prototypes.
Place, publisher, year, edition, pages
2006. Vol. 74, 026104-026104-7 p.
large-scale systems, graph theory, cellular biophysics
IdentifiersURN: urn:nbn:se:umu:diva-10926DOI: 10.1103/PhysRevE.74.026104OAI: oai:DiVA.org:umu-10926DiVA: diva2:150597
Selected for Aug.15, 2006 issue of Virtual Journal of Biological Physics Research2007-03-052007-03-052009-11-17Bibliographically approved