Evolution of Opinions with Estimation and Interference

The evolution of opinion is largely influenced by individual subjectivity, however, this is neglected in many studies about opinion dynamics. This paper analyzes the evolution of self-cognition and its impact on the spread of opinion from the perspective of individual judgment. Furthermore, this paper considers the effect of external interference on the cluster by altering social interaction, and discusses the impact of demagoguery on individual self-cognition bias and polarization of the cluster.