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In the voter and many other opinion formation models, agents are assumed to behave as congregators (also called the conformists); they are attracted to the opinions of others. In this study, I investigate linear extensions of the voter…

物理与社会 · 物理学 2013-11-06 Naoki Masuda

Opinion dynamics - the research field dealing with how people's opinions form and evolve in a social context - traditionally uses agent-based models to validate the implications of sociological theories. These models encode the causal…

社会与信息网络 · 计算机科学 2020-06-03 Corrado Monti , Gianmarco De Francisci Morales , Francesco Bonchi

It has been observed people tend to have opinions that are far more internally consistent than it would be reasonable to expect. Here, we study how that observation might emerge from changing how agents trust the opinions of their peers in…

物理与社会 · 物理学 2020-07-15 Marcelo V. Maciel , André C. R. Martins

We study a DeGroot-like opinion dynamics model in which agents may oppose other agents. As an underlying motivation, in our setup, agents want to adjust their opinions to match those of the agents of their 'in-group' and, in addition, they…

多智能体系统 · 计算机科学 2016-11-02 Steffen Eger

We study the effects of social influences in opinion dynamics. In particular, we define a simple model, based on the majority rule voting, in order to consider the role of conformity. Conformity is a central issue in social psychology as it…

物理与社会 · 物理学 2014-08-18 Marco Alberto Javarone

The study of opinions, their formation and change, is one of the defining topics addressed by social psychology, but in recent years other disciplines, like computer science and complexity, have tried to deal with this issue. Despite the…

人工智能 · 计算机科学 2011-06-22 Francesca Giardini , Walter Quattrociocchi , Rosaria Conte

Consider the following model to study adversarial effects on opinion forming. A set of initially selected experts form their binary opinion while being influenced by an adversary, who may convince some of them of the falsehood. All other…

人工智能 · 计算机科学 2021-12-02 Konstantinos Panagiotou , Simon Reisser

We define an opinion formation model of agents in a 1d ring, where the opinion of an agent evolves due to its interactions with close neighbors and due to its either positive or negative attitude toward the overall mood of all the other…

物理与社会 · 物理学 2012-05-22 Gerardo Iñiguez , János Kertész , Kimmo K. Kaski , R. A. Barrio

In this paper we propose and investigate a multi-dimensional opinion dynamics model where people are characterised by both opinions and importance weights across these opinions. Opinion changes occur through binary interactions, with a…

物理与社会 · 物理学 2026-01-12 Hanna Bartel , Martin Burger , Marie-Therese Wolfram

Modelling efforts in opinion dynamics have to a large extent ignored that opinion exchange between individuals can also have an effect on how willing they are to express their opinion publicly. Here, we introduce a model of public opinion…

物理与社会 · 物理学 2020-10-14 Felix Gaisbauer , Eckehard Olbrich , Sven Banisch

Statistical mechanics has proven to be able to capture the fundamental rules underlying phenomena of social aggregation and opinion dynamics, well studied in disciplines like sociology and psychology. This approach is based on the…

物理与社会 · 物理学 2017-03-09 Daniele Vilone , Timoteo Carletti , Franco Bagnoli , Andrea Guazzini

In this age of Facebook, Instagram and Twitter, there is rapidly growing interest in understanding network-enabled opinion dynamics in large groups of autonomous agents. The phenomena of opinion polarization, the spread of propaganda and…

物理与社会 · 物理学 2020-06-08 Hossein Noorazar , Kevin R. Vixie , Arghavan Talebanpour , Yunfeng Hu

We introduce a new agent-based model of opinion dynamics in which binary opinions (yes/no) of each agent can be measured and described regarding both pre- and post-influence at both of two levels, public and private, vis-\`a-vis the…

物理与社会 · 物理学 2018-11-16 Arkadiusz Jędrzejewski , Grzegorz Marcjasz , Paul R. Nail , Katarzyna Sznajd-Weron

In today's digital age, social media platforms play a crucial role in shaping public opinion. This study explores how discussions led by influencers on Twitter, now known as 'X', affect public sentiment and contribute to online…

社会与信息网络 · 计算机科学 2024-09-18 Rezaur Rashid , Joshua Melton , Ouldouz Ghorbani , Siddharth Krishnan , Shannon Reid , Gabriel Terejanu

We present an opinion dynamics model framework discarding two common assumptions in the literature: (a) that there is direct influence between beliefs of neighbouring agents, and (b) that agent belief is static in the absence of social…

物理与社会 · 物理学 2023-05-17 Benedikt V. Meylahn , Christa Searle

Opinion polarization is on the rise, causing concerns for the openness of public debates. Additionally, extreme opinions on different topics often show significant correlations. The dynamics leading to these polarized ideological opinions…

物理与社会 · 物理学 2021-02-03 Fabian Baumann , Philipp Lorenz-Spreen , Igor M. Sokolov , Michele Starnini

We introduce a new opinion dynamics model where a group of agents holds two kinds of opinions: inherent and declared. Each agent's inherent opinion is fixed and unobservable by the other agents. At each time step, agents broadcast their…

系统与控制 · 电气工程与系统科学 2022-05-04 Ali Jadbabaie , Anuran Makur , Elchanan Mossel , Rabih Salhab

This paper introduces a model for opinion dynamics, where at each time step, randomly selected agents see their opinions - modeled as scalars in [0,1] - evolve depending on a local interaction function. In the classical Bounded Confidence…

多智能体系统 · 计算机科学 2020-06-11 Elisabetta Cornacchia , Neta Singer , Emmanuel Abbe

We present an opinion model founded upon the principles of the bounded confidence interaction among agents. Our objective is to explain the polarization effects inherent to vector-valued opinions. The evolutionary process adheres to the…

多智能体系统 · 计算机科学 2023-12-25 Jacek Cyranka , Piotr B. Mucha

We study opinion dynamics in a population of interacting adaptive agents voting on a set of complex multidimensional issues. We consider agents which can classify issues into for or against. The agents arrive at the opinions about each…

物理与社会 · 物理学 2009-03-11 Renato Vicente , Andre C. R. Martins , Nestor Caticha