Abstract

This paper focuses on the information of public opinion events on the Internet, and pays close attention to the development of the situation through continuous monitoring and analysis. Study the establishment of social big data system. Use web crawler technology to collect and improve the information database of mass historical public opinion events. Meanwhile, monitor specific websites, focus on key figures, and collect relevant information in a timely manner. Use the nosql database MongoDB to store the data and expand the management in time. Meanwhile, users can find important public opinion information from the historical database. ElasticSearch distributed full-text retrieval technology is adopted to quickly and accurately find relevant public opinion information.

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