14,963 Hits in 8.6 sec

Opinion formation with time-varying bounded confidence

YunHong Zhang, QiPeng Liu, SiYing Zhang, Long Wang
2017 PLoS ONE  
To survey the characteristics of opinion dynamic behavior in social behaviors, we propose a model with nodes that are related to individual confidence level and an in/out degree of neighbor node.  ...  Based on this reasoned factual assumption, we propose an opinion dynamics model with time-varying bounded confidence.  ...  The authors thank Kimberly Yasutis and her team members for language editing and figure formatting.  ... 
doi:10.1371/journal.pone.0172982 pmid:28264038 pmcid:PMC5338805 fatcat:xkwosghhvfbffbwi3uyngosd3u

Consensus and Relation Networks

Murat Ahat, Omar Bennani, Marc Bui, Soufian Ben Amor
2011 International Conference on Innovations for Community Services  
And with simulation results, we showh ow networks, such as grid and scale-free, affect the consensus formation in bounded confidence model separately as well as together.  ...  In this paper,wepropose an extension to bounded confidence model which is anonlinear opinion dynamics model.  ...  Even if we have tested this model with varying number of nodes, here we only showthe ones with 900 and 2500 nodes.  ... 
dblp:conf/iics/AhatBBA11 fatcat:fm7v6p6jyzbrnno6f5delqprc4

Evolution of Bounded Confidence Opinion in Social Networks

Hui Xie, Guangjian Li, Yongjie Yan, Sihui Shu
2017 Discrete Dynamics in Nature and Society  
However, since agents want to evolve their opinion with Brownian motion, which may in turn impede full consensus, sufficiently frequent long-range links are in such situations crucial for the network to  ...  We investigate opinion dynamics as a stochastic process in social networks. We introduce the stubborn agent in order to determine the impact of network structure on the emergence of consensus.  ...  Acknowledgments This work was sponsored by the National Natural Science Foundation of China (71561013), the Major Project of the National Social Science Foundation of China (15ZDB129), the Key Project  ... 
doi:10.1155/2017/3173016 fatcat:sbuj7u3dpjhcpawactysaxrs2y

A Continuous Opinion Dynamic Model in Co-evolving Networks--A Novel Group Decision Approach [article]

Qingxing Dong, Xin Zhou
2017 arXiv   pre-print
Taking the bound of confidence and the degree of individual's persistence into consideration, the evolution of the opinion is driven by the relationship among the group.  ...  The simulation results verify the influence of the level of persistence on the time cost and indicate the influence of group size, the initial topology of networks and the bound of confidence on the number  ...  / 24 Then we explore the impact of bounded confidence threshold  on clusters' amount m in the framework proposed. The bound of confidence is set from 0.3 to 0.5 with 0.02 increase each time.  ... 
arXiv:1705.05981v1 fatcat:yt3ztd4phvaz3ignrturn4gxqy

Centrality-based Opinion Modeling on Temporal Networks

Eeti, Anurag Singh, Hocine Cherifi
2019 IEEE Access  
Second, the network structure is also time varying. More precisely, the relations between agents evolve with time.  ...  The so-called Temporal Threshold Page Rank Opinion Formation model (TTPROF) integrates temporal evolution in two ways. First, the opinion of the agents evolves with time.  ...  Each individual also has a set of confidence bound indicating the individuals with whom he can share its opinion. Nodes in the confidence bound are calculated on the basis of two parameters.  ... 
doi:10.1109/access.2019.2961936 fatcat:r5dvzgujongp5dzpls4hafsl4u

Rooting opinions in the minds: a cognitive model and a formal account of opinions and their dynamics [article]

Francesca Giardini, Walter Quattrociocchi, Rosaria Conte
2011 arXiv   pre-print
to deal with this issue.  ...  Furthermore, investigating social influence also implies the necessity to account for the way in which people change their minds, as a consequence of interacting with other people, and the need to explain  ...  Acknowledgments We thank two anonymous referees for their useful comments and participants of the Workshop on Gossip and Opinions (Rome, June 2010, ISTC CNR).  ... 
arXiv:1106.4218v1 fatcat:2ap3explzra4ta5hdlxawm32pu

Change my Mind: Data Driven Estimate of Open-Mindedness from Political Discussions [article]

Valentina Pansanella, Virginia Morini, Tiziano Squartini, Giulio Rossetti
2022 arXiv   pre-print
One of the main dimensions characterizing the unfolding of opinion formation processes in social debates is the degree of open-mindedness of the involved population.  ...  Opinion dynamic modeling studies have tried to capture such a peculiar expression of individuals' personalities and relate it to emerging phenomena like polarization, radicalization, and ideology fragmentation  ...  To understand how much individual bounded confidence may vary, we computed the standard deviation of our estimate for each observed user -figure 5a.  ... 
arXiv:2209.10470v1 fatcat:vqinmvpldzde7pyrofnloxid3m

Bifurcation Phenomena of Opinion Dynamics in Complex Networks [chapter]

Long Guo, Xu Cai
2009 Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering  
In this paper, we study the opinion dynamics of Improved Deffuant model (IDM), where the convergence parameter μ is a function of the opposite's degree K according to the celebrity effect, in smallworld  ...  Generically, the system undergoes a phase transition from the plurality state to the polarization state and to the consensus state as the confidence parameter increasing.  ...  At each time step, a new node is chosen from U (0) and linked to m(m < m 0 ) other nodes with the probability of Π that a new node will be connected to node i depending on the degree k i of node i, i.e  ... 
doi:10.1007/978-3-642-02466-5_114 fatcat:c5qjypndcrhpncnmnfjczasudy

Opinion formation in multiplex networks with general initial distributions [article]

Chris G. Antonopoulos, Yilun Shang
2018 arXiv   pre-print
We study opinion dynamics over multiplex networks where agents interact with bounded confidence.  ...  In literature, agents are generally assumed to have a homogeneous confidence bound.  ...  Acknowledgments Both authors would like to thank the support provided by the University of Essex International Visiting Fellowships to the project "Opinion dynamics in multiplex networks". Y.  ... 
arXiv:1710.09371v2 fatcat:ta7fw54imbfppk5qdt332mjdwq

Modeling and Simulation of Opinion Natural Reversal Dynamics with Opinion Leader Based on HK Bounded Confidence Model

Renbin Xiao, Tongyang Yu, Jundong Hou
2020 Complexity  
on the individual's view choice behavior into account based on the Hegselmann and Krause (HK) bounded confidence model.  ...  To explore the underlying mechanism of this social phenomenon and to reveal its dynamic traits, we propose here a novel model which takes the effects of natural reversal parameter and opinion interaction  ...  Over time, the agents will interact with its neighbor nodes in the local network according to the principle of bounded confidence, and interactions should be carried out in accordance with the dynamic  ... 
doi:10.1155/2020/7360302 fatcat:3xe2b5tg2ffknmmcvitontg7im

Emergence of Community Structure in the Adaptive Social Networks

Long Guo, Xu Cai
2010 Communications in Computational Physics  
Generality, the system does reach a steady state where all individuals' opinion and the complex network structure are fixed. The RGA enhances the ability of consensus of opinion formation.  ...  Here, p c is related to the complex network size N and the minimal coordination number 2K. The model also reproduces many features of large social networks, including the "weak links" property.  ...  of vertices and the connections among them vary in time with probability (1−φ) and φ respectively.  ... 
doi:10.4208/cicp.181009.161209a fatcat:4puojkiilje2dkzug7x5zpxv74

Steering opinion dynamics via containment control

Pietro DeLellis, Anna DiMeglio, Franco Garofalo, Francesco Lo Iudice
2017 Computational Social Networks  
As in classical bounded confidence models, we consider individuals affected by the confirmation bias, thus tending to influence and to be influenced only if their opinions are sufficiently close.  ...  Specifically, in an extremist society, the most radical agents (i.e., those with the most extreme opinions) have a higher appeal and are capable of influencing nodes with very diverse opinions.  ...  The authors declare that they have no competing interests. Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.  ... 
doi:10.1186/s40649-017-0048-0 pmid:29266119 pmcid:PMC5732624 fatcat:5rdwxlctjfeaxbul4f45vnljxu

Understanding opinions. A cognitive and formal account [article]

Francesca Giardini, Walter Quattrociocchi, Rosaria Conte
2011 arXiv   pre-print
The aim of this paper is to challenge the current theories on opinion by putting forward a cognitively grounded model where opinions are described as specific mental representations whose main properties  ...  The study of opinions, their formation and change, is one of the defining topics addressed by social psychology, but in recent years other disciplines, as computer science and complexity, have addressed  ...  The degree of confidence can also vary in accordance with the configuration activated by a certain opinion.  ... 
arXiv:1106.4221v1 fatcat:j2pws5nlajf53klv5r743x37pm

Agent-based opinion formation modeling in social network: a perspective of social psychology and evolutionary game theory [article]

Xicheng Yin, Hongwei Wang, Pei Yin
2018 arXiv   pre-print
The ratio of benefit to cost has a significant impact on opinion formation and a moderate ratio will result in the longest relaxation time or most unified global opinions.  ...  The proposed model is applied to Twitter to analyze the influence of topic type, parameter changing, and opinion leaders on opinion formation.  ...  by C. is the in-degree of nodes and denotes the probability of a node with in-degree .  ... 
arXiv:1807.06182v1 fatcat:di2nbl3ejfgebcffoygri7rirq

Multi-Equilibria Regulation Agent-Based Model of Opinion Dynamics in Social Networks

Andreas Koulouris, Ioannis Katerelos, Theodore Tsekeris
2013 Interdisciplinary Description of Complex Systems  
It relies on a small set of microprerequisites (intra-individual balance and confidence bound), leading to emergence of (non)stationary macro-outcomes.  ...  formation dynamics and the overall evolution of the system.  ...  These measures refer to: (i) Average in-degree (or row degree), i.e., the average of the connections leading to a node from other nodes, (ii) average out-degree (or column degree), i.e., the average of  ... 
doi:10.7906/indecs.11.1.5 fatcat:c4kakay4kzf6bfjgqq63qfuauu
« Previous Showing results 1 — 15 out of 14,963 results