A opinion dynamic model of group experts free discussion

Author

Jiong-Ming Su ; Bao-Hong Liu ; Zhi-yu Gao ; Qi Li ; Hong-Xu Ma

Author_Institution

Coll. of Mechatron. Eng. & Autom., Nat. Univ. of Defense Technol., Changsha, China

fYear

2013

fDate

25-27 May 2013

Firstpage

1638

Lastpage

1642

Abstract

A new nonlinear model of opinion dynamics for group experts free discussion is proposed. The model takes into account the factors of similarity between the opinions, threshold of bounded confidence and trust between experts. The impacts on opinions evolution by the times of experts´ speaking and rules of speech order are analyzed theoretically and compared by simulation respectively. The analytical results show that with the same expert repeats his opinion more, other experts´ opinions which lie in his area of confidence will continue approaching the expert´s opinion, and reach to the expert´s opinion finally. The statistical results from comparison of 5 kinds rules of speech order show that rule 5 is the most advisable rule which gets the minimal number of opinion clusters and can make most opinions converge in about 300 times of speech.

Keywords

decision making; decision theory; statistical analysis; bounded confidence; expert opinion; expert trust; group expert free discussion; nonlinear model; opinion cluster; opinion dynamic model; opinion evolution; similarity factor; speech order rule; statistical result; Analytical models; Computational modeling; Convergence; Educational institutions; Mathematical model; Speech; Vectors; Free Discussion; Opinion Dynamics; Simulation; Speech Order Rules;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2013 25th Chinese

Conference_Location

Guiyang

Print_ISBN

978-1-4673-5533-9

Type

conf

DOI

10.1109/CCDC.2013.6561193

Filename

6561193