Fuzzy Multi-criteria Group Decision Making Method For Internet Public Opinion Situation Based On Prospect Theory

With the trend of network interconnection technology,the internet is affecting the daily lives of people at a rapid pace.The most direct impact of the network on life is changing the way of social information exchange,especially after the media platform appears.The information transmission mode changes from pushing information to pulling information.Netizens can express views and attitudes through various forms of network channels.Network gradually developed into a distributing center of the Internet public opinion and a magnifying glass to reflect public opinion.The Internet breaks the regional restrictions and let scattered netizens can gather in the virtual space to participate in social events.The collection of attitudes,speeches and emotions of public events in the network space is called as internet public opinion.Government regulators can understand public opinions seamlessly through the internet channel.People are also able to resolve some institutional restrictions on the upward mobility of information and their discontents will be effectively released.However the concealment and weak supervision of the network makes it easy to spread false information and polarization.Under the situation of information asymmetry,netizens accustom to the simple thinking,so they are susceptible to extreme and irrational emotions.In the environment of the rapid declining of flow cost and time of information,the political organization ability and the mobilization ability of ordinary people have been greatly enhanced.With the ineffective control of the internet public opinion,slow responses of relevant government departments and some selective reports from the media,emergencies may erupt.In recent years,emergencies occur frequently,and the ratio of emergencies triggered by the internet public opinion is higher.Because of the severe management situation of public opinion,the need of internet public opinion situation decision is urgent.It is necessary to construct the network public opinion situation decision method and auxiliary monitoring department to purify the network environment,so the negative impacts on social stability can be reduced.From the propagation theory of internet public opinion and the research of the situation decision,a fuzzy multi-criteria group decision method for internet public opinion situation based on prospect theory is built.Firstly,from 4 aspects of public opinion information,media,public opinion audience and emergency department,the paper establish an internet public opinion situation decision criteria system that contains 9 criterion.Secondly,considering the limited rational feature of decision makers and the advantages of group decision-making,a fuzzy multi-criteria group decision making method for network public opinion situation based on prospect theory after the fuzzy linguistic evaluation data is collected through questionnaire.Finally,the practicability and rationality of the method is verified by the "high price fish" event in Harbin.The research results include:1.Aiming at network public opinion situation decision,the design of the decisionmaking index system is simple,reasonable and intelligible.Use the fuzzy mathematics method to quantify the qualitative criterion,and the initial weights of indexes is calculated with the prospect theory for the limited rational reality of experts.2.A fuzzy multi-criteria group decision making method for network public opinion situation based on prospect theory is built.That the fuzzy theory,the prospect theory and the group decision-making technology are integrated in the internet public opinion situation decision-making is innovative in the application.