Design And Implementation Of Network Media Public Opinion Detection And Analysis System

In the Internet,the public opinion on public issues,the beliefs and values formed by social managers and the political attitude of society are network public opinions.This paper mainly studies the system of public opinion detection and analysis for network media,aiming at the current public opinion development and standardized processing.In this system,we can clearly understand the network news and public opinion news of different website portals,including Phoenix,Tencent,Xinhua and Sina,etc.,which will summarize the reports on a problem,and can further track and report such public opinion information,so as to analyze this topic and study its development trend Finally,it studies the development and change mechanism of various events in view of the network public opinion,and finally gives the decision-makers accurate data,so as to master the initiative of network public opinion and guide the public opinion on the Internet clearly.In this study,effective integration of web crawlers was carried out.Firstly,the actual situation of public opinion monitoring was introduced,the research status was elaborated,and relevant commodities in the current market were introduced.On the basis of web crawler technology,information filtering and grasping functions are combined to realize the collection of web page data by using search engine.Through a web denoising technology,web technology and feature selection technology for web and information preprocessing,based on the information retrieval algorithm,combined with two kinds of topic tracking and emotional mining method to analyze network public opinion,understand their needs,and development trend,to grasp the deficiency of the current commercial products,to launch event emotional tracking,topic tracking public opinion monitoring system;Dig deep into the distribution and source of public opinions and hot spots in the web page,make further interaction with users,and form corresponding user public opinion model library according to customer feedback.Then the prototype of the public opinion monitoring system is further decomposed to determine the technical focus.Framework based on the above theory and key technology,designed a network public opinion monitoring system,the system includes public opinion collection,web pretreatment,topic tracking,public opinion analysis several modules,according to the performance of web crawlers and public opinion text data to do the analysis and determination,the final result shows that this design of the network media public opinion detection and analysis system for check rate and high accuracy,good practicability.