{ "id": "cond-mat/0603205", "version": "v2", "published": "2006-03-08T14:11:55.000Z", "updated": "2006-03-09T10:24:00.000Z", "title": "Agreement dynamics on small-world networks", "authors": [ "Luca Dall'Asta", "Andrea Baronchelli", "Alain Barrat", "Vittorio Loreto" ], "journal": "Europhysics Letters 73 (2006) 969", "doi": "10.1209/epl/i2005-10481-7", "categories": [ "cond-mat.stat-mech", "physics.soc-ph" ], "abstract": "In this paper we analyze the effect of a non-trivial topology on the dynamics of the so-called Naming Game, a recently introduced model which addresses the issue of how shared conventions emerge spontaneously in a population of agents. We consider in particular the small-world topology and study the convergence towards the global agreement as a function of the population size $N$ as well as of the parameter $p$ which sets the rate of rewiring leading to the small-world network. As long as $p \\gg 1/N$ there exists a crossover time scaling as $N/p^2$ which separates an early one-dimensional-like dynamics from a late stage mean-field-like behavior. At the beginning of the process, the local quasi one-dimensional topology induces a coarsening dynamics which allows for a minimization of the cognitive effort (memory) required to the agents. In the late stages, on the other hand, the mean-field like topology leads to a speed up of the convergence process with respect to the one-dimensional case.", "revisions": [ { "version": "v2", "updated": "2006-03-09T10:24:00.000Z" } ], "analyses": { "subjects": [ "89.75.Fb", "05.65.+b" ], "keywords": [ "small-world network", "agreement dynamics", "local quasi one-dimensional topology induces", "late stage mean-field-like behavior", "small-world topology" ], "tags": [ "journal article" ], "publication": { "journal": "EPL (Europhysics Letters)", "year": 2006, "month": "Mar", "volume": 73, "number": 6, "pages": 969 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006EL.....73..969D" } } }