The process of network public opinion monitoring is basically as follows: setting monitoring range, setting keyword combination, checking crawling results, excluding irrelevant information, setting focus, analyzing crawling information, writing public opinion report, and regularly testing system operation.
There are many enterprises in public opinion monitoring, and many public opinion monitoring products have been formed. Taking the public opinion monitoring system of Dorico public opinion data analysis station system as an example, this paper briefly introduces the main functions of public opinion monitoring:
L hot spot identification ability
According to the authority of news sources, the number of comments, the intensity of speech time and other parameters, hot topics in a given time period can be identified.
Trend analysis and statistics
The tendentiousness analysis of the viewpoints and themes of information provides reference for the analysis. The basis of analysis can judge the development trend of information according to the amount of information reprinted and the time density of comments.
L topic tracking
Topic tracking mainly refers to information tracking of hot topics, as well as tendency and trend analysis. The specific contents of tracking include: information source, reprint volume, reprint address, geographical distribution, information publisher and other related information elements. It is based on trends and trend analysis.
L information automatic summary function
It can automatically extract document summary information according to document content, and can accurately express the theme and central idea of article content. Users can quickly understand the general idea and core content of the article through this intelligent summary without looking at all the contents of the article, which improves the efficiency of user information utilization. Moreover, this kind of intelligent summary can be adjusted according to the needs of users to meet different needs, mainly including text information summary and web page information summary.
L trend analysis
The chart shows the distribution relationship between monitoring vocabulary and time and trend analysis, including the distribution of regional information, so as to provide periodic analysis, such as the regional distribution of information dissemination, reprint volume, reprint website type and so on.
L emergency analysis
There are the following kinds of emergencies: natural disasters, social disasters, wars, upheavals and accidents. The Internet information monitoring and analysis system mainly monitors and analyzes the emergencies of Internet information, and analyzes the trends and trends of hot information to monitor the sudden information.
L alarm system
The alarm system mainly monitors and analyzes the hot information and emergencies of the public opinion analysis engine system, and then analyzes them according to the information corpus and the alarm monitoring information base to ensure the healthy development of public opinion.
statistic report
According to the result database processed by the public opinion analysis engine, users can browse through the browser to provide information retrieval function, query hot topics and tendencies according to specified conditions, browse the specific content of information, and provide decision support.