Research Of SEIR Microblog Public Opinion Communication Model With Positive And Negative Feedbacks

In recent years,with the progress of science and technology,as well as the development of the Internet,soclai networking sites around the world have developed rapidly.Social network has become the main position of social public opinion because of its high connectivity,wide user coverage,fast and rapid information dissemination.But at this stage of the network public opinion appeared two factors the internet mercenaries and zombie funs,which have great influence on the spread of public opinion transmission.Therefore,in view of the traditional model has been difficult to describe the social network public topic of the real dissemination process,the social network topic propagation model based on infectious disease dynamics with internet mercenaries and zombie fans as positive and negative feedbacks is proposed.It has important theoretical and practical significance to understand the transmission mechanism and process of real public opinion,to grasp the law of network communication and to provide effective guidance for public opinion regulation.Due to the mechanism of information transmission in social networks and in the nature of infectious disease transmission mechanism has many similar components,so this paper conbines the SEIR model studied the opinion propagation model system with the internet mercenaries and zombie fans as positive and negative feedbacks.The main contents can be sunmarized as follows:(1)Studied the characteristics of social networks which bulid the foundation for the later research of public opinion transmission mechanism.Considering the realistic correspondence and significence of this research,the WS dynamic small world model is studied,which verfies that the public opinion propagation network conforms to the characteristics of the real social network.(2)The identification of micro-blog mercenaries based on integrated exponential entropy merhod and the micro-blog zombie funs based on naive bayes are studied.By contrasting the normal user's information with the mercenaries and zombie fans separately.Analyzed the characteristics of mercenaries and zombie fans by contrast,established the discriminant model corresponding to the effective realization of the discrimination of positive and negative feedback factors respectively.(3)The micro-blog SEIR model with positive and negative feedbacks is analyzed.Established the control group respectively,the influence of positive and negative feedback on model is concluded,which helped improve the accuracy of public opinion analysis model,some corresponding regulation suggestions are given.The innovation of the thesis can be summarized as follows:(1)In the construction of the whole public opinion system,using WS small world model,starting from the source of a certain source of public opinion,expanding the user's bahavior and friends relationship,which can well meet the social relations of public opinion transmission;(2)The research uses the Weibo mercenaries and zombie fans as the positive and negative feedback in the Weibo SEIR model,improves the analysis characteristics of public opinion at this stage,and provides effective guidences for public opinion regulation.