Active speed role in opinion formation of interacting moving agents

Terranova, Guillermo Roberto; Revelli, Jorge A.; Sibona, G. J.

doi:10.1209/0295-5075/105/30007

Cited by 14 publications

(23 citation statements)

References 27 publications

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“…The dynamics of social contacts due to agent mobility represents an important element to model the spreading of ideas or opinions. It was already shown their relevance in the outcome of an epidemic disease [6], and also in the transmission of opinions [18]. Indeed, we have found that ideas spreading through social contacts are strongly influenced by mobility.…”

Section: Introductionsupporting

confidence: 53%

“…In this work we extend the framework presented previ-ously by Terranova et al [18], to study the opinion evolution of a community, when the opinion state is not only ruled by agent interactions but also by external stimuli. Carletti et al [19] introduced the concept of propaganda as an opinion attractor to the agents close in the opinion space.…”

Section: Introductionmentioning

confidence: 99%

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Internal-external stimulus competition in a system of interacting moving particles: Persuasion versus propaganda

2015

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We propose a general nonlinear analytical framework to study the effect of an external stimulus in the internal state of a population of moving particles. This novel scheme allows us to study a broad range of excitation transport phenomena. In particular, considering social systems, it gives insight of the spatial dynamics influence in the competition between propaganda (mass media) and convincement. By extending the framework presented by Terranova et al. [Europhys. Lett. 105, 30007 (2014)], we now allow changes in individual's opinions due to a reflection induced by mass media. The equations of the model could be solved numerically, and, for some special cases, it is possible to derive analytical solutions for the steady states. We implement computational simulations for different social and dynamical systems to check the accuracy of our scheme and to study a broader variety of scenarios. In particular, we compare the numerical outcome with the analytical results for two possible real cases, finding a good agreement. From the results, we observe that mass media dominates the opinion state in slow dynamics communities; whereas, for higher agent active speeds, the rate of interactions increases and the opinion state is determined by a competition between propaganda and persuasion. This difference suggests that kinetics can not be neglected in the study of transport of any excitation over a particle system.

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Section: Introductionsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Internal-external stimulus competition in a system of interacting moving particles: Persuasion versus propaganda

2015

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“…The mechanisms of persuasion and compromise have been implemented in several works to model opinion formation in interacting populations. On the one hand, persuasion have recently been introduced in some agent-based models [15,16,17,18]. For instance, persuasion was used in Refs.…”

Section: Introductionmentioning

confidence: 99%

Opinion dynamics in two dimensions: domain coarsening leads to stable bi-polarization and anomalous scaling exponents

Velásquez-Rojas¹,

Vázquez²

2018

J. Stat. Mech.

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We study an opinion dynamics model that explores the competition between persuasion and compromise in a population of agents with nearest-neighbor interactions on a two-dimensional square lattice. Each agent can hold either a positive or a negative opinion orientation, and can have two levels of intensity -moderate and extremist. When two interacting agents have the same orientation become extremists with persuasion probability p, while if they have opposite orientations become moderate with compromise probability q. These updating rules lead to the formation of same-opinion domains with a coarsening dynamics that depends on the ratio r = p/q. The population initially evolves to a centralized state for small r, where domains are composed by moderate agents and coarsening is without surface tension, and to a bi-polarized state for large r, where domains are formed by extremist agents and coarsening is driven by curvature. Consensus in an extreme opinion is finally reached in a time that scales with the population size N and r as τ ≃ r −1 ln N for small r and as τ ∼ r 2 N 1.64 for large r. Bi-polarization could be quite stable when the system falls into a striped state where agents organize into single-opinion horizontal, vertical or diagonal bands. An analysis of the stripes dynamics towards consensus allows to obtain an approximate expression for τ which shows that the exponent 1.64 is a result of the diffusion of the stripe interfaces combined with their roughness properties.

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“…Besides, persuasion was used in recent works [16,17] as a degree of a person's self-conviction, where in addition to the influence from others, a person takes into account its own opinion when making a decision. Also, persuasion between opposite-orientation agents was recently studied in [15]. However, we understand that the mechanism of strengthening of opinions due to same-orientation interactions has not been investigated within an interacting particle model.…”

mentioning

confidence: 99%

The influence of persuasion in opinion formation and polarization

Rocca¹,

Braunstein²,

Vázquez³

2014

EPL

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-We present a model that explores the influence of persuasion in a population of agents with positive and negative opinion orientations. The opinion of each agent is represented by an integer number k that expresses its level of agreement on a given issue, from totally against k = −M to totally in favor k = M . Same-orientation agents persuade each other with probability p, becoming more extreme, while opposite-orientation agents become more moderate as they reach a compromise with probability q. The population initially evolves to (a) a polarized state for r = p/q > 1, where opinions' distribution is peaked at the extreme values k = ±M , or (b) a centralized state for r < 1, with most opinions around k = ±1. When r ≫ 1, polarization lasts for a time that diverges as r M ln N , where N is the population's size. Finally, an extremist consensus (k = M or −M ) is reached in a time that scales as r −1 for r ≪ 1.

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Active speed role in opinion formation of interacting moving agents

Cited by 14 publications

References 27 publications

Internal-external stimulus competition in a system of interacting moving particles: Persuasion versus propaganda

Internal-external stimulus competition in a system of interacting moving particles: Persuasion versus propaganda

Opinion dynamics in two dimensions: domain coarsening leads to stable bi-polarization and anomalous scaling exponents

The influence of persuasion in opinion formation and polarization

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