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Non Local Effects in the Sznajd Model: Stochastic resonance aspects

M. Cecilia Gimenez, Jorge A. Revelli, Horacio S. Wio
2012 ICST Transactions on Complex Systems  
Under these conditions, we show the occurrence of a double stochastic resonance phenomenon when depicting signal-to-noise ratio as a function of both, the social temperature and the non local interaction  ...  The Sznajd model is basically an Ising spin model, widely used in sociophysics studies as a simple mechanism for predicting decision-making in a closed community through interactions among the nearest  ...  Other aspects of non local effects on the modified Sznajd model behavior will be the subject of further work.  ... 
doi:10.4108/trans.cs.2012.10-12.e3 fatcat:ik323omfkffvxcys3lnq2i727i

Opinion Dynamics: Models, Extensions and External Effects [chapter]

Alina Sîrbu, Vittorio Loreto, Vito D. P. Servedio, Francesca Tria
2016 Understanding Complex Systems  
Several models inspired from those in use in physics have been developed to encompass many of these elements, and to allow for the identification of the mechanisms involved in the opinion formation process  ...  These modelling schemes range from binary simple models such as the voter model, to multi-dimensional continuous approaches.  ...  In [150] , cooperation is analysed in an interactive population in a prisoner dilemma setting. A heterogeneous model is employed, including aspects of the non-linear voter model (Section 2.1.1).  ... 
doi:10.1007/978-3-319-25658-0_17 fatcat:vdqqnazq5nh6dbtx4d3rsprf3a

A model of opinion dynamics with echo chambers explains the spatial distribution of vaccine hesitancy [article]

Johannes Müller and Aurelien Tellier and Michael Kurschilgen
2021 arXiv   pre-print
In a first mathematical part, we scale the model both to a deterministic limit and to a weak-effects limit, and obtain bifurcations, phase transitions, and the invariant measure.  ...  We predict and compare the effectiveness of different policies aimed at influencing opinion dynamics in order to increase vaccination uptake.  ...  Sznajd-models [69, 70] , or the Ising model [54] ).  ... 
arXiv:2112.10230v1 fatcat:apsio7agwje5hezkqttnboz2ae

Opinion and community formation in coevolving networks

Gerardo Iñiguez, János Kertész, Kimmo K. Kaski, R. A. Barrio
2009 Physical Review E  
In addition the model includes the opinion dependent link-rewiring scheme to describe network topology coevolution with a slower time scale than that of the opinion formation.  ...  With this model comprehensive numerical simulations and mean field calculations have been carried out and they show the importance of the separation between fast and slow time scales resulting in the network  ...  Introducing noise or "social temperature" makes the analogy with physics even closer and leads to a number of new phenomena from paramagnetic phase to stochastic resonance.  ... 
doi:10.1103/physreve.80.066119 pmid:20365243 fatcat:o4x2vwzdh5cnvgszjleeeytxty

Complex networks: Structure and dynamics

2006 Physics reports  
, and developing models to mimic the growth of a network and reproduce its structural properties.  ...  The first approach to capture the global properties of such systems is to model them as graphs whose nodes represent the dynamical units, and whose links stand for the interactions between them.  ...  In this spirit, the authors would like to thank R. Albert Zhou.  ... 
doi:10.1016/j.physrep.2005.10.009 fatcat:us3vssqn6ngcxdi4ise2znlcdi

Interactions in Complex Systems Interactions in Complex Systems

Stéphane Cordier, Nicolas Debarsy, Cem Ertur, François Nemo, Déborah Nourrit, Gérard Poisson, Christel Vrain
2016 unpublished
Acknowledgments The authors wish to thank the "Lendület" program of the Hungarian Academy of Sciences and the Hungarian Scientific Research Fund (OTKA K112929) for financial and organizational support  ...  Acknowledgements The authors would like to thank E.  ...  Moreover, small variations in the local rules of interaction can result in large (non-linear) changes at the system scale.  ... 

The First Workshop on Holistic Human Factors for Adaptive Cooperative Human-Machine Systems COGNITIVE 2015 Committee COGNITIVE Advisory Chairs

Hermann Kaindl, Narayanan Kulathuramaiyer, Malaysia, Jose Alfredo, F Costa, Hakim Lounis, Canada, Om Rishi, Hermann Kaindl, Narayanan Kulathuramaiyer, Malaysia, Jose Alfredo (+91 others)
We also gratefully thank the members of the COGNITIVE 2015 organizing committee for their help in handling the logistics and for their work that made this professional meeting a success.  ...  We hope COGNITIVE 2015 was a successful international forum for the exchange of ideas and results between academia and industry and to promote further progress in the area of cognitive technologies and  ...  ACKNOWLEDGMENT We want to express special thanks to the students of the Osaka University who participated in our experiment.  ... 

Beschreibung der elektronischen Struktur korrelierter Systeme mittels lokaler Selbstwechselwirkungskorrekturen im Rahmen der Vielfachstreutheorie [article]

Markus Däne, Universitäts- Und Landesbibliothek Sachsen-Anhalt, Martin-Luther Universität
In oxidic systems strong electron correlations occur which are not treatable with standard methods of the electron theory. Similar effects appear in elements of the heavy rare earth series.  ...  The studies are extended to f elements. In detail the α-γ phase transition of Ce which is is an isostructural localization- delocalization transition is discussed.  ...  Al- len: Aspects of the correlation effects, antiferromagnetic order, and translational symmetry of the electronic structure of NiO and CoO. Phys. Rev.  ... 
doi:10.25673/2805 fatcat:n6aqonbnjneflasewd6ayfus7q