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Overly determined agents prevent consensus in a generalized Deffuant model on with dispersed opinions

Hirscher, Timo LU orcid (2017) In Advances in Applied Probability 49(3). p.722-744
Abstract

During the last decades, quite a number of interacting particle systems have been introduced and studied in the crossover area of mathematics and statistical physics. Some of these can be seen as simplistic models for opinion formation processes in groups of interacting people. In the model introduced by Deffuant et al. (2000), agents that are neighbors on a given network graph, randomly meet in pairs and approach a compromise if their current opinions do not differ by more than a given threshold value θ. We consider the two-sided infinite path as the underlying graph and extend existing models to a setting in which opinions are given by probability distributions. Similar to what has been shown for finite-dimensional opinions, we... (More)

During the last decades, quite a number of interacting particle systems have been introduced and studied in the crossover area of mathematics and statistical physics. Some of these can be seen as simplistic models for opinion formation processes in groups of interacting people. In the model introduced by Deffuant et al. (2000), agents that are neighbors on a given network graph, randomly meet in pairs and approach a compromise if their current opinions do not differ by more than a given threshold value θ. We consider the two-sided infinite path as the underlying graph and extend existing models to a setting in which opinions are given by probability distributions. Similar to what has been shown for finite-dimensional opinions, we observe a dichotomy in the long-term behavior of the model, but only if the initial narrow mindedness of the agents is restricted.

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Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Deffuant model, opinion dynamics, random measure, total variation distance
in
Advances in Applied Probability
volume
49
issue
3
pages
23 pages
publisher
Applied Probability Trust
external identifiers
  • scopus:85029639169
ISSN
0001-8678
DOI
10.1017/apr.2017.19
language
English
LU publication?
no
additional info
Publisher Copyright: © Copyright Applied Probability Trust 2017.
id
55a21b7d-c122-4ecc-bf95-99ce82b4455d
date added to LUP
2023-12-14 13:20:56
date last changed
2023-12-14 15:32:46
@article{55a21b7d-c122-4ecc-bf95-99ce82b4455d,
  abstract     = {{<p>During the last decades, quite a number of interacting particle systems have been introduced and studied in the crossover area of mathematics and statistical physics. Some of these can be seen as simplistic models for opinion formation processes in groups of interacting people. In the model introduced by Deffuant et al. (2000), agents that are neighbors on a given network graph, randomly meet in pairs and approach a compromise if their current opinions do not differ by more than a given threshold value θ. We consider the two-sided infinite path as the underlying graph and extend existing models to a setting in which opinions are given by probability distributions. Similar to what has been shown for finite-dimensional opinions, we observe a dichotomy in the long-term behavior of the model, but only if the initial narrow mindedness of the agents is restricted.</p>}},
  author       = {{Hirscher, Timo}},
  issn         = {{0001-8678}},
  keywords     = {{Deffuant model; opinion dynamics; random measure; total variation distance}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{3}},
  pages        = {{722--744}},
  publisher    = {{Applied Probability Trust}},
  series       = {{Advances in Applied Probability}},
  title        = {{Overly determined agents prevent consensus in a generalized Deffuant model on with dispersed opinions}},
  url          = {{http://dx.doi.org/10.1017/apr.2017.19}},
  doi          = {{10.1017/apr.2017.19}},
  volume       = {{49}},
  year         = {{2017}},
}