带有衰减效应和遗忘机制的微博网络谣言传播模型  

Rumor Propagation Model of Microblog Network with Attenuation Effect and Forgetting Mechanism

作　　者：王韩 刘万平[1] 卢玲[1] WANG Han;LIU Wanping;LU Ling(College 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：《计算机科学》2023年第S01期752-758,共7页Computer Science

基　　金：重庆市自然科学基金(cstc2021jcyj-msxmX0594);国家社会科学基金(17XXW005)。

摘　　要：随着微博用户的迅速增长,对网络谣言的控制也变得更加重要。为了快速平息微博谣言,缩小谣言在微博网络上的传播范围,研究了影响谣言传播的关键因素。首先,结合谣言在微博网络上的传播场景,创新性地提出了UNFR传播模型。该模型将用户分为4类:未知者、中立者、转发者和反驳者,并考虑了衰减效应和遗忘机制,从而重新定义了模型节点状态转移。通过对模型的动力学分析及数值实验,分析了网络谣言传播规律。然后,在微博网络上进行传播模拟实验,验证了模型的合理性。通过分析模型参数对谣言传播的影响,得到了缩小谣言传播范围的方法。最后,研究了模型在不同参数初值下的谣言控制效果,并根据实验结果提出了有效的微博谣言控制策略。With the rapid growth of microblog users,the control of network rumors becomes more important.In order to quiet down quickly the microblog rumors,and reduce the propagation range of rumors on microblog network,the key factors affecting the propagation of rumors are studied.Firstly,the UNFR propagating model is innovatively proposed by combining the spreading scene of rumors on microblog network,the model divides users into four categories:unknown,neutral,forwarder and refuter.Node state transitions of model are redefined by considering attenuation effect and forgetting mechanism.Through dynamics ana-lysis of the model and numerical experiments,the propagation regulations of network rumors are analyzed.Then,the rationality of the model is verified by propagation simulation experiments on microblog network.The method of reducing the propagation range of rumors is obtained by analyzing the influences of model parameters on rumor propagation.Finally,the control effects of para-meters under different initial values of rumor are studied,and effective control strategies of microblog rumors are proposed according to the experimental results.

关 键 词：网络谣言 谣言传播 动力学模型 衰减效应 遗忘机制 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]