Irrelevance of information outflow in opinion dynamics models (Articolo in rivista)

Type
Label
  • Irrelevance of information outflow in opinion dynamics models (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevE.83.016113 (literal)
Alternative label
  • Claudio Castellano (1,2); Romualdo Pastor-Satorras (3) (2011)
    Irrelevance of information outflow in opinion dynamics models
    in Physical review. E, Statistical, nonlinear, and soft matter physics (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Claudio Castellano (1,2); Romualdo Pastor-Satorras (3) (literal)
Pagina inizio
  • 016113 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevE.83.016113 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 83 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 Istituto dei Sistemi Complessi (CNR-ISC), UOS Sapienza, Piazzale Aldo Moro 2, IT-00185 Roma, Italy 2 Dipartimento di Fisica, \"Sapienza\" Università di Roma, Piazzale Aldo Moro 2, IT-00185 Roma, Italy 3 Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Campus Nord B4, ES-08034 Barcelona, Spain (literal)
Titolo
  • Irrelevance of information outflow in opinion dynamics models (literal)
Abstract
  • The Sznajd model for opinion dynamics has attracted a large interest as a simple realization of the psychological principle of social validation. As its most salient feature, it has been claimed that the Sznajd model is qualitatively different from other ordering processes because it is the only one featuring outflow of information as opposed to inflow. We show that this claim is unfounded by presenting a generalized zero-temperature Glauber type of dynamics, which yields results indistinguishable from those of the Sznajd model. In one dimension, we also derive an exact expression for the exit probability of the Sznajd model, which turns out to coincide with the result of an analytical approach based on the Kirkwood approximation. This observation raises interesting questions about the applicability and limitations of this approach. (literal)
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