基于个体兴趣度差异和辟谣机制的谣言传播模型  

Rumor spread model considering difference of individual interest degree and refutation mechanism

作　　者：冉茂洁 刘超[1] 黄贤英[1] 刘小洋[1] 杨宏雨[1] 张光建[1] RAN Maojie;LIU Chao;HUANG Xianying;LIU Xiaoyang;YANG Hongyu;ZHANG Guangjian(School of Computer Science and Engineering,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆理工大学计算机科学与工程学院,重庆400054

出　　处：《计算机应用》2018年第11期3312-3318,共7页journal of Computer Applications

基　　金：国家自然科学基金青年基金资助项目(61503052;61503050);国家社会科学基金资助项目(17XXW004);教育部人文社科青年项目(16YJC860010;16JDSZ2019)~~

摘　　要：针对现有谣言传播模型未同时考虑个体兴趣度差异和辟谣机制的问题,提出基于个体兴趣度差异和辟谣机制的IWSR谣言传播模型。计算了模型的平衡点和基本再生数,利用Lyapunov稳定性定理、Hurwitz判据和La Salle不变性原理,得到部分谣言传播平衡点局部稳定和全局稳定的条件。通过数值仿真得出加强政府辟谣力度或提升个体判断能力等均能有效抑制谣言传播的结论,最后在WS小世界网络和BA无标度网络上的仿真结果得出在不同网络拓扑结构下谣言传播影响因子的影响力度存在差异性的结论。The impact of individual interest and refutation mechanism on rumor spread was investigated,and a new IWSR(Ignorant-Weak spreader-Strong spreader-Removal)rumor spread model was proposed.The basic reproduction number and equilibrium points of the model were calculated.Using Lyapunov stability theorem,Hurwitz criterion and LaSalle invariance principle,the local stability and global stability of some equilibrium points were proved.Through numerical simulations,it is concluded that increasing the effectivity of the governments’refutation actions or improving people’ability of rumor judgement can effectively suppress rumor spread.Finally,numerical simulations were conducted in WS(Watts-Strogatz)small-world network and BA(Barabási-Albert)scale-free network,showing that the network topology exerts significant influence on rumor spread.

关 键 词：全局稳定性 谣言传播 兴趣度差异 辟谣机制 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]