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Title: Optimal network topologies for local search with congestion
Author: Guimerà Manrique, Roger
Díaz Guilera, Albert
Vega-Redondo, Fernando
Cabrales, Antonio
Arenas, Àlex
Keywords: Física matemàtica
Dinàmica topològica
Mathematical physics
Topological dynamics
Issue Date: 2002
Publisher: American Physical Society
Abstract: The problem of searchability in decentralized complex networks is of great importance in computer science, economy, and sociology. We present a formalism that is able to cope simultaneously with the problem of search and the congestion effects that arise when parallel searches are performed, and we obtain expressions for the average search cost both in the presence and the absence of congestion. This formalism is used to obtain optimal network structures for a system using a local search algorithm. It is found that only two classes of networks can be optimal: starlike configurations, when the number of parallel searches is small, and homogeneous-isotropic configurations, when it is large.
Note: Reproducció digital del document proporcionada per PROLA i
It is part of: Physical Review Letters, 2002, vol. 89, núm. 24, p. 248701-1-248701-4
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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