Research And Development Of Public Opinion Communication Evolution Analysis System For Food Safety Network Based On Complex Network

In recent years,a number of domestic food safety incidents have gradually aroused public concern about food safety issues.For example,the incidents of nut mold exceeding the legal limit,plastic seaweed incident,industrial alcohol blending with liquor incident,etc.The lack of food safety guarantee has brought serious panic to the public heart and affected social stability and harmony,and the Internet is a tool for these food safety incidents to spread quickly and widely.Therefore,it is of great significance to study the evolution of Public Opinion Communication in food safety network for maintaining social stability and enhancing public trust in food safety.With the rapid development of the Internet,various new forms of information interaction have emerged,the social network platform is increasing,the spread of public opinion on food safety network has become more and more complex.The research based on complex network is one of the effective methods to study the evolution of Public Opinion Communication in food safety network.At present,the main content of complex network research is that network topology model reflects the characteristics of various networks in real society and the modeling of information propagation and opinion evolution behavior on the network.Firstly,this paper studies the modeling of Complex Network topology.According to the characteristics of real network,the BBV model is improved,and the local world and old connection edges are deleted.On this basis,different node attributes are set for the weighted network model,classical virus propagation model theory and continuous opinion evolution model are introduced,and the influence of network structure change on the evolution of public opinion propagation is analyzed.In this paper,the analysis system of public opinion communication evolution on food safety network is developed,and the Public Opinion Information Collection on micro-blog platform is realized,including real-time collection and hot spot collection,this paper analyzes the visual display of the change trend of the communicator through the communication model,and realizes the visual display of the evolution process of the group opinion in the complex network through the evolution model.The test result is good.