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Dynamic scaling regimes of collective decision making
KTH, School of Computer Science and Communication (CSC), Computational Biology, CB.
2008 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 81, no 2, 28003- p.Article in journal (Refereed) Published
Abstract [en]

We investigate a social system of agents faced with a binary choice. We assume there is a correct, or beneficial, outcome of this choice. Furthermore, we assume agents are influenced by others in making their decision, and that the agents can obtain information that may guide them towards making a correct decision. The dynamic model we propose is of nonequilibrium type, converging to a final decision. We run it on random graphs and scale-free networks. On random graphs, we find two distinct regions in terms of the finalizing time-the time until all agents have finalized their decisions. On scale-free networks, on the other hand, there do not seem to be such distinct scaling regions.

Place, publisher, year, edition, pages
2008. Vol. 81, no 2, 28003- p.
Keyword [en]
National Category
Social Sciences Interdisciplinary
URN: urn:nbn:se:kth:diva-24445DOI: 10.1209/0295-5075/81/28003ISI: 000252884100024ScopusID: 2-s2.0-69449084857OAI: diva2:349932
QC 20100909Available from: 2010-09-09 Created: 2010-09-09 Last updated: 2010-09-09Bibliographically approved

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Holme, PetterMinnhagen, Petter
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