| The information related to emergencies flows in the Internet space and has been promoted by the dissemination of online media.It has become the most active form of network public opinion.How to deal with the network public opinion generated by emergencies has become an important issue for emergency response to emergencies in the real society.The impact of the effect.The development characteristics of emergencies have fundamentally determined the evolution of Internet public opinion.However,with the rapid development of online media,online media has gradually become a platform for social thought culture and information exchange,and people have begun to use search engines such as Baidu.Searching for topics of interest to you,going to Weibo to learn about real-time news events happening on the Internet,discussing public events on the Internet platform,and looking for exports to express your own interests,has formed a field of public opinion that is different from traditional public opinion.Especially in the critical period of social transformation and frequent conflicts in China,the degree of activity of online public opinion has continuously increased.Especially in the process of the occurrence,development and dissemination of some public emergencies,the concentrated attention and explosive dissemination of relevant event information by netizens has led to the openness,hotspot and instability of the public opinion of the emergencies.The media platform represented by Baidu and Weibo played a vital role in the dissemination of various major emergencies,and also provided a platform for the public and stakeholders to express their appeals.At the same time,the media platform has also become a place to spread negative news,bad content and even public rumors,causing great panic.Once an emergency is consistent with the anti-social sentiment of netizens,it is easy to trigger a crisis of public opinion and endanger social stability.Therefore,it is of great practical significance to grasp the evolutionary law of the network's public opinion and the evolution of the public opinion,and to understand the mechanism of the network's public opinion.On this basis,it is of great practical significance to further study the evolution of the interaction of the Internet's public opinion.In the process of public opinion dissemination of emergencies,the government,network media and netizens are the three most important communicative subjects.The interaction between the three principals has an impact on the publicity of the publicity,the speed of communication and the evolution of public opinion.important influence.Under the interaction of the three subjects,the evolution of the public opinion of the emergency network conforms to the requirements of the classic SIR infectious disease model,and interaction occurs in both time and space.By actively and effectively guiding the public,strengthening cooperation with the media platform,and stabilizing the development of public opinion,it provides accurate analysis and effective governance for the evolution of Internet public opinion triggered by the Chinese government.This paper first summarizes and defines the concepts of emergencies,network public opinion,network evolution and evolution characteristics of emergencies,and then comprehensively analyzes the propagation mechanism of emergency network lyrics based on life cycle theory,silent spiral theory and public governance theory.It provides a theoretical basis for the interaction between the government,online media and netizens.Secondly,using social network analysis methods and multi-agent simulation and analysis methods of complex systems,using the data of Baidu Index and China's official Sina Weibo,we will regulate 110 emergencies that have generated major online public opinion in China from2010 to 2018.And empirical research.Through real case data analysis of the evolution of public opinion time and the evolution of public opinion space in emergencies,the communication mechanism of network public opinion is studied from two dimensions of time and space,and the influencing factors of public opinion evolution are analyzed through three public opinion subjects.The guiding countermeasures for public opinion transmission of emergencies.Spatially using the social network analysis method to analyze the spatial structure density of 110 cases,and classify 110 emergencies into four types: natural disasters,accident disasters,public health events and social security events.Three cases were selected for emergencies,and the centrality and intermediateity of the case space nodes were analyzed.Secondly,the theory of complex adaptive systems is expounded.On this basis,a multi-agent simulation method of complex system is used to establish a simulation model for public opinion information dissemination of emergency events.The model describes the attributes of each participant and establishes interaction rules between netizens and netizens,mediaand netizens,and government and netizens.Finally,the model is simulated by the multi-agent simulation platform Net logo of complex system.The simulation is divided into two parts: firstly,interactive simulation between government,network media and netizens is carried out,and the evolution effects of different stages of public opinion communication are obtained.By adjusting the attribute weight of the subject in the model,the author analyzes the influence of the subject on the evolution of public opinion,and combines the results of social network analysis and simulation to propose different strategic choices at each stage of the public opinion evolution.The results of this paper show that the network public opinion propagation process presents nonlinear characteristics.Therefore,in the process of public opinion evolution,the higher the authority of the government to publish information,the faster it can win the convergence of media and netizens in a short time,and reach the equilibrium of the system faster.status.The sooner the government releases information,the higher the acceptance of the media and netizens.The media's cooperation with the government can enhance its credibility,affect most netizens,and actively evade rumors,which is conducive to the guidance of emergency network grievances.Strengthen the cognitive ability of netizens and let netizens learn to trust the government and the media.Adopt a compliant means of communication to improve the level of comprehensive management of online public opinion. |
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