The application discloses a public opinion
response effect measurement method based on theme migration and emotion change recognition. The method takes relevant microblog hot search blog posts and comment information of an event as basic data, performs theme analysis on the microblog text based on an LDA theme model, calculates the emotion value of the comment content according to a Bi-LSTM model, constructs a measurement model of the
response effect under a sudden negative public opinion, and evaluates the
response effect based on the recognition results of theme migration and emotion change. The application has the advantages of easy practice, scientific index, strong pertinence and the like, can be used for measuring the response effect in a sudden negative public opinion, evaluating the
intervention effect on the evolution of the negative public opinion, analyzing the advantages and disadvantages of the response measures, and providing optimization strategies for optimizing the negative public opinion management work.