Study on the Mechanism of Guidance of Public Opinion Based on Graph Centrality in SNA

To quantitatively study the mechanism of the guidance of Internet public opinion,a new design on the effect of the common guiding methods through graph centrality in social network analysis(SNA) is presented.Compared with the result of the common methods using the data of 'Huananhu' event occurred in Tianya forum in the Internet,an advice of guiding the Internet public opinion in all stages of its evolvement is proposed.