Paper Title
Analysis and Research on Network Public Opinion for Vaccine Safety

Abstract
The issue of Changchun live vaccine, for example, using the crawler software acquisition after July 2018 SinaWeibo page text data relating to the vaccine in Changchun, through the analysis of the network public opinion supervision vaccine development of public opinion, to grasp the subjectivity of the text through the analysis of the emotional emotional bias is positive, neutral, or negative, on the basis of combining with clustering analysis for further mining netizens vaccine safety and vaccine event's point of view and attitude and put forward the corresponding strategies and Suggestions, to improve the oversight system for the government. Increase public confidence in vaccination against irrational behavior resulting from non-vaccination or delayed vaccination due to vaccination events. Keywords - Changchun Vaccine; Online Public Opinion; Emotional Analysis; Text Clustering