Research On Simulation Of Weibo Public Opinion Dissemination And Evolution Mechanism

In the decade of the 21st century,human society entered the era of the Internet.The rapid development of the Internet has closely linked everyone on the planet.In the Internet era,the network platforms such as micro-blog,post bar,news websites are constantly growing and influencing people's lives.Among them,as a typical representative of the rapid rise in recent years,micro-blog has become an important earrier of network public opinion because of its strong openness and relatively low access barriers.It has played an important role in the development of relevant public opinion because of its de-centralization of information dissemination structure,timely release of information,rapid dissemination and active user participation.Weibo public opinion is the sum of all opinions,attitudes and opinions expressed by Weibo users on the Weibo platform.It also has a great impact on the development of public opinion-related events.If Weibo public opinion can not be effectively dealt with or improperly handled,it is very likely to induce bad mood of netizens,and then trigger people's violations and excessive behavior,which poses a certain threat to social harmony and stability.Therefore,it is necessary to study the dissemination and evolution process of Weibo public opinion,find its inherent law,and control and guide it to a certain extent.In this paper,Weibo public opinion as the research object,its dissemination process and evolution process as the research content,the purpose of the study is to find out how different factors affect the dissemination and evolution process of Weibo public opinion,and on this basis,put forward corresponding control and guidance strategies,aiming at maintaining social stability and harmony.On the basis of the research on the related literatures of Weibo public opinion at home and abroad,this paper comprehensively uses the methods of system analysis,model construction,case analysis,computer simulation and so on.This paper analyses the elements of the dissemination and evolution of Weibo public opinion,including Weibo platform,Weibo information and Weibo users.Based on the epidemic model SEIR in transmission dynamics and the dissemination characteristics of Weibo public opinion,a SEIR model with differential dissemination ability is constructed.Taking several Weibo public opinion events as examples,the model is validated tlirough data collection and analysis by distributed crawlers.Through computer simulation,the influence of opinion leaders,user participation,importance of public opinion and sustained attention on the process of public opinion dissemination on Weibo is obtained,and the government's control strategy of public opinion dissemination on Weibo is given.Based on the bounded confidence model HK model in public opinion dynamics and the evolving characteristics of Weibo public opinion,this paper constructs the HK model considering opinion leaders,and validates the model by analyzing the collected data through emotional orientation analysis technology.Through computer simulation,the influence of bounded trust parameters between individuals,persistence of opinion leaders,influence of opinion leaders on Weibo,and opinion leaders'value on the evolution of Weibo public opinion is obtained,and the government's guidance strategy for the evolution of Weibo public opinion is given.This study provides theoretical reference for the simulation of Weibo public opinion,and provides strategies for effective control and guidance of Weibo public opinion,which has certain practical significance.