The Simulation Of Public Opinion Formation On Internet Social Platform

With the development of society,economy and technology,Internet social platform has come to the forefront of people's work,life and entertainment in recent years,which has been paid more attention to by the public.At present,the phenomenon of public opinion on the network platform in China is mainly reflected in the two aspects:change but stability,both good and bad.For a healthy society,encouraging good public opinion and curbing bad public opinion must be faced with.However,the existing research results and methods about opinion dynamics and public opinion are insufficient,and the development of social network platform has also brought many problems in the research of public opinion formation,which are worth being studied.Therefore,we're based on the basic theory of opinion dynamics,diffusion theory of public opinion and ABM.And we study the cognition and communication logic,and the influence of network structure on the formation of public opinion.Based on the basic hypothesis of opinion dynamics and the theory of public opinion diffusion,Mathematica used as a simulation tool,constructing an interactive simulation model on social network,we form a control group from group composition,environment temperature and clustering coefficient to study the sensitivity analysis of public opinion formation.At the same time,on the basis of the original model,we'll further consider the effect of diminishing emotional bias and network structure change on the formation of public opinion.We found(1)When the majority are peace-driven agents,it is easy to form the public opinion biased toward the extreme side,and as the proportion rises,it tends to increase.When the majority are behavior-driven agents,it will form the public opinion(not extreme)but he extreme opinion is not mainstream.And with its proportion rising,the difference between extreme and not extreme opinion increases.When the majority are self-driven agents,there will be two opposite sides of the extreme opinion,and there is a dominant side,and as the proportion rises,the possibility of public opinion is lower.(2)When the social ambient temperature is low,the subtle changes can affect the individual's willingness to express,which makes the efficiency of the communication faster.However,the change of clustering coefficient has little influence on the formation of public opinion.(3)When considering the effect of diminishing emotional bias,public opinion will present a "latent-development-peak-retreat-vanishing" evolution cycle.When considering the change of network topology,we find that when the topology expands,the spread of public opinion increases and the degree of public opinion bias increases.