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Research On The Early Warning Of Food Safety Network Public Opinion In China

Posted on:2019-12-06Degree:MasterType:Thesis
Country:ChinaCandidate:M Y DuFull Text:PDF
GTID:2429330545991127Subject:Administrative Management
Abstract/Summary:PDF Full Text Request
Food safety concerns the people's physical health and life safety.It is a major livelihood issue,an economic issue,and a political issue.The food safety issue has attracted extensive attention from the government,the public,and enterprises,and it is also one of the main topics of the “two sessions” in recent years.The continuous and steady development of the Internet industry,the rapid development of Internet technology has accelerated the dissemination of information,digital technology represented by the Internet is accelerating the integration of various areas of the economy and society,and the network has become a space for government to convey government information and the public to express their personal thoughts.Triggered a unique food safety network public opinion.The flourishing development of the Internet,the increasing number of food safety issues,and the government's emphasis on food safety and online public opinion have made the food safety network public opinion early warning an indispensable force,affecting the government's management level.The national government has actively promulgated a number of laws and regulations and policies to purify the network environment and enhance early warning ability of food safety network public opinion.As an effective means to prevent food safety accidents,the food safety network public opinion warning system provides networked public opinion warning on food safety issues as the decision basis for solving food safety problems.Therefore,how to timely and effectively analyze the development trend of the Internet public opinion on food safety,building a food safety network public opinion alert system suitable for China's national conditions is of great significance to improving our country's ability to solve the problem of food safety and public opinion.This article makes an in-depth study of the early warning of food safety public opinion in China.First of all,this article expounds the research background,research status at home and abroad,and related concepts of the food safety network public opinion early warning.Secondly,according to the theoretical basis of food safety network public opinion and the principle of selecting indicators,four early-level indicators and 15 secondary indicators have been established of early warning index system.The connotation of the indicators and the use of Bazhuayu collectors for data collection were described in detail.Third,through the implementation of the fuzzy comprehensive evaluation sample training method,the BP neural network is provided with training samples to construct the food safety network public opinion BP neural network early warning model.And using the MATLAB neural network toolbox for simulation experiments and analysis of experimental results.The results of simulation experiments show that the model has high early warning accuracy,and it proves that the index system and model constructed are both reasonable and feasible.It can provide network public opinion decision support for the food safety department,and Correspond countermeasures can be developed according to the grade changes at each stage of the incident.At the same time,it also has guiding significance for the network public opinion warning of other departments.Finally,from the perspective of the government,new media,enterprises,and the public,the countermeasures and suggestions for improving the early warning capabilities of food quality and safety network were put forward in China.The government's strategy to improve early warning capabilities was highlighted and the research work of the paper was summarized and forecasted.
Keywords/Search Tags:food safety, network public opinion, fuzzy comprehensive evaluation, BP neural network, early warning
PDF Full Text Request
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