Social Network Analysis Of Weibo Public Opinion Evolution In Internet Public Events

The evolution of public opinion in Internet public events is a multi-party opinion game.The expression of opinions reflects the balance of rights between different public opinion subjects.In order to understand the overall characteristics of the evolution of public opinion in the weibo field,as well as the roles played by key communication nodes with different attributes in the evolution of public opinion.First of all,through data mining to find " 4.14 Liaocheng Yu Huan case" related weibo;Secondly,using social network analysis,through centrality analysis,structural hole analysis and Kkernel analysis,the influential communication nodes in weibo forwarding relationship network are identified.Thirdly,through text analysis,the main viewpoints and topics of important communication nodes are refined.Finally,the relationship network of the whole and different stages of public opinion evolution is established,and quantitative analysis is carried out from many dimensions such as centrality,faction and core-edge structure.The study found that from the overall characteristics of the weibo public opinion field,The official response is an important factor in dismantling the rumor.Those public individuals who influenced by rumors are more likely to form a closed circle of factions,resulting in a group intensification effect.Under this premise,the timely intervention of the official response has become an important factor affecting the direction of public opinion.Judging from the stage characteristics of the evolution of public opinion,the detonation of public opinion is completed with the participation of weak nodes in the relational network.Although some rights organizations can use their own social resources and play a key role in the communication network structure,their views may not be given more attention in the public opinion field.Beside the competition for the core issues of public opinion is actually a process of emotional contagion.Those views with obvious emotional tendentiousness and consistent with mainstream opinions can often occupy a more important position in the public opinion field and become the core views.At the same time,Judging from the roles played by different public opinion subjects,the media is the setter of public opinion topics,the public is the followers of the topics,and the official agencies are the guides of public opinion.In the online public opinion field,the media organizations showed strong ability to issues set.And the evolution of public opinion has been accompanied by the control and participation of media organizations from beginning to end.