Information Spreading Model And Simulation Of Social Networks

The research of information spreading model of social network is developed on the classical epidemic spreading model.The classical epidemic spreading model is the beginning of the research on transmission dynamic.As the development of times and the research further,many scholars began to study the rumor spreading model of traditional social network,which is another important stage of the research on transmission dynamics.With the development of Internet in recent years,online social network is becoming more and more popular and even changed the way of information dissemination and communication.In addition,online social networks have features which are different from that of traditional social networks.So many scholars began to study information transmission mechanisms of online social networks.In this paper,we focus on two popular online social platforms which are microblog and WeChat,and research the information transmission process and rules on them.WeChat Moments is a platform which is used to release information on WeChat,which mainly include four functions of releasing,collecting,reviewing and sharing information.According to the functions of WeChat Moments,a new information spreading model,namely IRCSS model,is proposed.Population is divided into five groups: ignorants,reviewers,collectors,sharers,stiflers in the model.It includes sharing mechanism,reviewing mechanism,collecting mechanism and stifling mechanism.Mean-field equations are derived to describe the dynamics of five groups in the IRCSS model.In addition,we conduct theoretical analysis and numerical simulation about the effects of parameters on information spreading.And we find the Influence of Network Structure on information dissemination.Microblog is another a relatively popular social software.Compared with WeChat,it is better in openness,and tend to spread information rather than to communicate.The basic functions of microblog are approximately same to WeChat Moments,but users of microblog include very important users the number of whose fans is bigger than that of ordinary users.So super spreaders are added to the model.According to information spreading mechanisms,we build IRC3 S model to simulate the process of information propagation on microblog network.Because the degree of super spreaders is bigger than that of ordinary spreaders,we improve the IRC3 S model.Then numerical simulations of two models are performed to find out the rules of information spreading on microblog.Finally,we conduct comparative analysis to two models of microblog and WeChat Moments to find the similarities and differences of information spreading of microblog and WeChat.