Research On Network Public Opinion Communication And Media Influence Of Food Safety Events Based On SNA

Food is the material basis for human survival and development.After the food safety incident,netizens expressed their emotions,attitudes,and wishes on the online platform,which led to the rapid development of online public opinion.If there is no timely guidance,intervention and response,it may lead to the fermentation of food safety incidents,rumors and even worse.Decrease citizens’ credibility of food safety,eventually triggering panic in public opinion and endangering social stability and tranquility.Therefore,the social network analysis(SNA)method is used to study the dissemination law of food safety incidents online public opinion,and at the same time,a cloud model is constructed on this basis to evaluate the media influence of food safety incidents online public opinion,comprehensively understand the process of food safety incidents online public opinion information dissemination,and guide Different media actively responded to the situation of network public opinion,and provided certain reference and suggestions for emergency management departments and network public opinion supervision departments.This paper studies the dissemination process of online public opinion on food safety incidents.Combined with the emergency information flow system,the life cycle theory is introduced into the research model of the dissemination process of food safety incidents on the Internet.Segment the propagation process.On the basis of the segmentation of the dissemination process,according to the dissemination network at different stages,different types of representative media are selected to establish an evaluation index system for the influence of food safety incident network public opinion media,and the cloud model is used to evaluate the food safety incident network public opinion media influence.Evaluation.The main work of this research includes:(1)Firstly,define food safety,sort out the characteristics and classification of food safety incidents,as well as related definitions and dissemination theories of network public opinion,etc.,to lay a theoretical foundation for the research on the process of network public opinion dissemination and media influence of food safety incidents.(2)Secondly,in order to fully understand the process of online public opinion dissemination of food safety incidents,this study uses social network analysis methods to establish a social network model to analyze the dissemination network of food safety incidents and the structural characteristics of the time network to accurately perceive and judge food safety incidents.The key time nodes of the dissemination process are divided into sections.The "2020 Chenzhou Milk Powder Incident" is selected as an empirical case,and Pajek software is used for visual analysis.At the same time,it proves the feasibility of the social network analysis method to study the spread of food safety incidents on the Internet.(3)Thirdly,in order to prevent the emergence of complicated situations of network public opinion evolution and create a good atmosphere for network public opinion dissemination,this study uses the cloud model to evaluate the influence of different types of media in network public opinion.Taking the "2020 Chenzhou Milk Powder Incident" as the object to conduct empirical research,using the cloud model to judge the weight of government media,media practitioners,intellectual media,and other media in the network public opinion,and to evaluate and analyze the influence of network public opinion.(4)Finally,according to the development law in the process of online public opinion dissemination of food safety incidents in different communication stages,and the different roles played by different media in the process of online public opinion dissemination of food safety incidents,it is the emergency management department and the supervision and management department of network public opinion.Actively respond to online public opinion on food safety incidents and provide certain references and suggestions.