具有个体信息差异的Deffuant-I舆论传播模型  

The Deffuant-I Opinion Diffusion Model with Differences in Individual Information Levels

作　　者：张亮[1] 杨闪[2] 李霞[2] 

机构地区：[1]青岛大学商学院,山东青岛266071 [2]天津科技大学经济与管理学院,天津00222

出　　处：《系统工程》2017年第6期82-88,共7页Systems Engineering

基　　金：天津市教委社会科学重大项目(2014ZD22);天津市教育科学"十三五"规划项目(HE3055);天津市哲学社会科学规划项目(TJGL16-021)

摘　　要：现有的舆论传播动力学模型较少考虑个体知识水平对舆论传播的影响。基于Deffuant模型,引入表示知识水平差异的信息量和表示信息应用处理水平的认知能力,提出Deffuant-I模型。仿真实验发现,信息量服从均匀分布或幂率分布时,群体认知能力与观点收敛速度成反比,幂率分布收敛速度较快;信息量服从正态分布时,认知能力正比于观点收敛速度,群体难以达成共识。The influence of individual knowledge on opinion diffusion process is seldom considered in the existing opinion dynamic models. Based onDeffuant model, this paper proposes an opinion dynamic model, namely Deffuant-I, which considers the information level that describes one＇s individual knowledge, as well as his/her cognitive ability which represent different abilities of information processing. The simulation results show that when the group＇s information level fol- lows uniform distribution or power-- law distribution, the cognitive ability is inversely proportional to the convergence speed, and the opinion convergence speed is higher when the group＇s information level is power--law distributed. When the information level is normally distributed, it is hard to obtain consensus opinion, while the cognitive ability is proportional to the convergence speed.

关 键 词：舆论传播 观点动力学 Deffuant模型 信息量 认知能力 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]