Key Technology Research On Internet Public Opinion Information Acquisition And Analysis System

With the current Internet environment has become increasingly complex,Network public opinion have a significant impact on the stability of society and manypeople. The character of the public opinion is including wide range, high speed oftransmission, difficult to find and control, which makes information collection andanalysis of public opinion in the Internet has become very important.The demand of public opinion information on the Internet collection system isanalyzed deeply. Then, a public opinion-oriented information collected vertical searchengine crawlers is designed and implemented by the network topology, keywordbased web content filtering and breadth-first search technology. The hot publicopinion subject is analyzed by Chinese word segmentation and subject keywordsextraction method. Emergency public opinion events and heated security topics aredetected and early warned in time. The public opinion in local area is automaticidentified through the computer. A public opinion report semi-automatic generatedalgorithm is designed and implemented. The retrieved results are sorted by relatedindicators of keyword frequency, weight, categories of pages, web content warningpage. At last, public opinion report can be semi-automatic generated.The system can gather public opinion information of news sites, forum, blog andTie ba. Statistical analysis of the collected results and subject analysis is implemented.Furthermore, public opinion report is semi-automatic excepted.