社交网络中带有真相传播者的谣言传播模型研究  

A Rumor Spreading Model with the Truth-Telling People in Social Networks

作　　者：邱小燕 王佳佳 QIU Xiaoyan;WANG Jiajia(School of Economics and Management,Shanghai Institute of Technology,Shanghai 201418,China;School of Emergency Management,Xihua University,Chengdu 610039,China)

机构地区：[1]上海应用技术大学经济与管理学院,上海201418 [2]西华大学应急管理学院,成都610039

出　　处：《应用技术学报》2022年第4期413-420,共8页Journal of Technology

基　　金：教育部人文社会科学青年基金项目(16YJC630117);上海市教委晨光计划人才项目(17CG61);上海应用技术大学引进人才项目(YJ2017-6);上海应用技术大学文科工程建设项目(10210Q172140);西华大学引进人才项目(RZ2100000789)资助。

摘　　要：真相传播者具有传播事实真相和驳斥谣言的作用。在均匀网络中研究辟谣机制的谣言传播模型,根据传播规则建立平均场方程,并进行稳定性分析。在社交网络Livejournal上就真相传播者对谣言传播过程的影响进行了数值模拟,得到如下结果:由于谣言的传播与免疫以及科学真相的传播,最终系统中仅剩下谣言免疫者和真相传播者;真相传播者通过传播真相和驳斥谣言,抑制了谣言的传播速度并且降低了谣言的传播规模;随着辟谣机制中的参数不同,网络结构对谣言传播的作用会发生变化,当真相传播率较高的时候,规则网络中的谣言最终规模小于BA无标度网络中规模,但在比较辟谣机制中其他参数的影响时,规则网络中的谣言最终规模大于BA无标度网络中规模。The truth-telling people can spread the true facts and refute the rumor.A rumor spreading model integrated with this truth-telling mechanism is developed on homogeneous networks.The mean field equations are derived accordingly,and the stability analysis is conducted as well.The numerical analysis is carried out on a real social network,Livejournal to investigate the impacts of the truth-telling mechanism on the rumor spreading.The results show that when the system goes steady,there are only stiflers and truth-tellers left;the truth-telling mechanism hampers the diffusion speed of the rumor and cuts down the final size of the rumor;the effects of the network structure change with the parameters in the truth-telling mechanism,i.e.when the truth spreading rate stays relatively high,the BA scale-free network has a larger final size of the rumor than the regular network,while in other cases,the final size of the rumor on regular network is larger than that on the BA scale-free network.

关 键 词：谣言传播模型 辟谣机制 社交网络 稳定性分析 

分 类 号：N945[自然科学总论—系统科学]