| The information age is comming,so many enterprises will have a serious impact by negative network public opinion.We can just by carry out network public opinion analysis and assist enterprises to make scientific decisions for enterprises promote high-quality development.However,at present,the breadth and depth of information collection by the domestic government,enterprises and other public opinion monitoring departments are not meet the needs of public opinion monitoring.Therefore,this paper studies and develops a set of network public opinion analysis and assistant decision-making system by using advanced technologies such as information collection technology,keyword recognition technology,full-text retrieval and so on.The main achievements are as follows:Network public opinion information collection collects the current mainstream information data acquisition technology,cloud computing technology and data mining technology,and carries out data mining and classification acquisition of relevant information such as data and accessories on the Internet,realizing automatic identification of information sources,authors,release time,topics and content.Through the real-time,high-speed and huge processing and analysis method of Internet public opinion data,the collected data are automatically classified,calculated,and analyzed its key words and public opinion level,and the statistics and analysis of data are realized.In data analysis and processing,keyword recognition technology and text indexing technology are used.Through the analysis of the code in the web,we can get the important data information and key words in the page as the important data for the next analysis.After the analysis of the data,the useful information and useless information in the data are classified and processed by implementing the predetermined rules of screening and judgment,and the useless information is automatically filtered out,while the useful information is stored in the database.In the process of data processing,it is necessary to ensure the breadth of data collection,that is,the breadth of information sources such as websites and forums,as well as the depth of data collection,that is,the depth of data mining and the full coverage of web pages.Based on the solution of the key technical problems mentioned above,a network public opinion analysis and assistant decision-making system is developed.Through theimplementation of this system,we can monitor the key public opinion risk events in the Internet,analyze and process the data and publish the statistical analysis reports,so as to realize the network public opinion monitoring based on keywords and the early warning and supervision of the monitoring data.By focusing on and tracking the source pages and events,we can monitor the public opinion information and track the development changes,predict and warn automatically. |