| In recent years,more and more users use microblog to share information and social interaction.So the mass data generated by users becomes a research focus for the industry and academia.Users publish posts and comments with personal emotion in microblog platform which reflect the views of various social phenomena and the new events.This makes the microblogging become public opinion fermentation places.As a result,it has important application value in the field of sentiment analysis and public opinion monitoring.This paper studies the problems of microblog information acquisition,sentiment analysis,microblog diffusion analysis in three aspects.First of all,this paper summarizes the development of the social media,introduces the research on information acquisition and the analysis of the social media,especially the microblog.O n the basis of this,this paper devises a new method of acquisitioning microblog information based on the kernel of the browser and the method of microblog texts pretreatment to extend emotional words by extracting expression symbol features from microblog information.Further,this paper uses the method of sentiment lexicon and rules weighted calculation of emotional features to judge sentiment polarity of chinese microblog.Combinng with visualization technology,this paper annlyzes the microblog propagation path and emotional change and visually displays result of microblog broadcast of information diffusion analysis.This paper designs and implements a prototype system of microblog information acquisition and analysis for Sina microblogging platform.Interacting via Web page,our system shows the results of microblog propagation path analysis,sentiment analysis and microblog information diffusion time rules analysis.We test and verify the system through case.The result illustrates the effectiveness of the system. |
