Research On Online Public Opinion Evolutionary Game Based On Scale-Free Network

In recent years,with the rapid development of the Internet,the online society has changed people's lifestyles as a new way and provided people with a brand new open platform for communication and activities.At the same time,more and more people expressed their emotions on the Internet,their opinions and attitudes formed online public opinion.Compared with traditional social networks,the complexity of network systems is increasing and increasing.Under such a background,the spread of online public opinion is faster and has a wider impact,and as a result,many public crisis events have formed and related issues have increased.The difficulty of department supervision has affected the stability of society.Therefore,understanding the spread and evolution law of public opinion in complex networks provides supervision for relevant departments and guides the public opinion of the Internet to provide theoretical basis and method guidance.The spread and evolution of Internet public opinion have been attracting the attention of experts and scholars in various fields.Based on the previous research,this paper combines the scale-free network in complex networks with the prisoner's dilemma game in game theory to build a foundation based on it.Scale-free network public opinion evolution model analyzes the choices of netizens' propagation behavior strategies under prisoner's dilemma game theory in scale-free networks,studies the evolution rules of network public opinion,and uses Monte Carlo simulation methods to respond to public opinion from the perspective of government.The computer simulation analysis was conducted on the time and penalties of government involvement in public opinion.According to the experiments,we found that the size of the network in the scale-free network does not affect the evolution of public opinion.The government should intervene promptly when responding to the public opinion.When necessary,it must appropriately increase the punishment to prevent the spread of false news and maintain the society.The harmony and stability.