【Purpose/significance】In the evolution process of online public opinions in social media, opinions may be divided, opposed or concentrated, which leads to the group polarization phenomenon of online denunciation or confrontation. This paper aims to provide reference for...MORE 【Purpose/significance】In the evolution process of online public opinions in social media, opinions may be divided, opposed or concentrated, which leads to the group polarization phenomenon of online denunciation or confrontation. This paper aims to provide reference f...