Garlic Industry Network Public Opinion Monitoring Analysis System Development

With the development of the Internet era,the Internet has increasingly become the main gathering place of public opinion.Based on the characteristics of the rapid spread of the network,the influence of network public opinion on individuals,enterprises,society and the country is increasing.Agricultural network public opinion also plays an important role in the development of agriculture in China.Garlic industry's network public opinion such as “garlic is cruel” and “garlic is cheap” has once become the focus of society,which has brought extremely adverse effects on the healthy development of garlic industry.However,the garlic industry network public opinion information is complex.How to extract the industry public opinion information accurately from the complex network public opinion and conduct timely public opinion guidance has become an increasingly urgent need of the industry.Based on the analysis of the research status of network public opinion at home and abroad,combined with the characteristics of garlic industry network public opinion,guided by the theory of network public opinion,and using the key technology of network public opinion collection and analysis,this paper develops a garlic industry network public opinion monitoring and analysis system.Specific research contents are as follows:(1)Garlic industry network public opinion collection technology.Combining with the reality of garlic industry network public opinion,this paper analyses its main characteristics and main public opinion gathering places.Based on the research of network public opinion gathering methods,it uses Scrappy framework of network crawler technology to crawl garlic industry network public opinion information.Scrapy framework can effectively collect public opinion information from garlic industry network from different sources.It is not only flexible and scalable,but also can automatically upload the collected public opinion information to MySQL database.(2)Analysis of garlic industry network public opinion.Based on the analysis of the current mainstream keyword extraction algorithms,considering the practical application of different algorithms in garlic industry network public opinion analysis,TextRank algorithm is selected to extract garlic industry network public opinion keywords.A custom dictionary is constructed by combining the common words of garlic industry to further improve the accuracy of word segmentation,so as to ensure the effect of keyword extraction.In the research of emotional analysis of garlic industry network public opinion,using dictionary-based emotional analysis method and combining with the current mainstream basic emotional dictionary,a garlic industry network emotional dictionary is constructed.According to the text matching algorithm of emotional dictionary,the score is calculated,and the emotional state of garlic industry network public opinion is divided into positive,negative and neutral.(3)Development of garlic industry network public opinion monitoring and analysis system.Based on the garlic industry chain data platform,the garlic industry network public opinion monitoring and analysis subsystem is developed.The system realizes the functions of user management,public opinion monitoring,public opinion analysis,statistical analysis and interactive exchange.It can provide accurate and comprehensive garlic industry network public opinion information for the industry,and directly reflect its changing trend.This has a great impact on the garlic industry network public opinion information sharing and the construction of garlic single product data.Meaning.