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Uncorrelatedness in growing networks with preferential survival of nodes

The emergence of uncorrelated growing networks is proved when nodes are removed either uniformly or under the preferential survival rule recently observed in the World Wide Web evolution. To this aim, the rate equation for the joint probability of degrees is derived, and stationary symmetrical solutions are obtained, by passing to the continuum limit. When a uniformly random removal of extant nodes and linear preferential attachment of new nodes are at work, we prove that the only stationary solution corresponds to uncorrelated networks for any removal rate r ∈ (0,1). In the more general case of preferential survival of nodes, uncorrelated solutions are also obtained. These results generalize the uncorrelatedness displayed by the (undirected) Barab´asi-Albert network model to models with uniformly random and selective (against low degrees) removal of nodes

© Americal Review E, 2011, núm. 83, p. 016110

American Physical Society

Author: Juher, David
Saldaña Meca, Joan
Date: 2011
Abstract: The emergence of uncorrelated growing networks is proved when nodes are removed either uniformly or under the preferential survival rule recently observed in the World Wide Web evolution. To this aim, the rate equation for the joint probability of degrees is derived, and stationary symmetrical solutions are obtained, by passing to the continuum limit. When a uniformly random removal of extant nodes and linear preferential attachment of new nodes are at work, we prove that the only stationary solution corresponds to uncorrelated networks for any removal rate r ∈ (0,1). In the more general case of preferential survival of nodes, uncorrelated solutions are also obtained. These results generalize the uncorrelatedness displayed by the (undirected) Barab´asi-Albert network model to models with uniformly random and selective (against low degrees) removal of nodes
Format: application/pdf
Citation: 013725
ISSN: 1539-3755 (versió paper)
1550-2376 (versió electrònica)
Document access: http://hdl.handle.net/10256/7481
Language: eng
Publisher: American Physical Society
Collection: Versió preprint del document publicat a: http://dx.doi.org/10.1103/PhysRevE.83.016110
Articles publicats (D-IMA)
Is part of: © Americal Review E, 2011, núm. 83, p. 016110
Rights: Tots els drets reservats
Subject: Ordinadors, Xarxes d’
Computer networks
Title: Uncorrelatedness in growing networks with preferential survival of nodes
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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