A risk prediction and early warning method for event occurrence based on Internet open information

Abstract

The invention discloses an internet open information-based event occurrence risk prediction and early-warning method. The method comprises the following steps: (1), carrying out spam filtering on webpage information; (2), parsing words expressing location in the filtered webpage information to obtain a place name word; and carrying out processing on the parsed webpage information based on an established information body and classifying the webpage information into a matching region; (3), filtering the webpage information so as to obtain webpage information related to food safety, and carrying out processing on the filtered webpage information by using a regression analysis model and determining an object type related to each piece of webpage information; (4), determining webpage information sets of events of a set region and a set object and establishing event feature parameters and calculating parameter values regularly, and carrying out early warning on an event whose feature parameter exceeds a set threshold value; and (5), on the basis of a matrix analysis and a regression prediction model, carrying out different early warning on a risk of set event occurrence at a target region. According to the invention, the efficiency of risk early warning is improved.

Description

Technical field [0001] The present invention belongs to the field of information technology, and in particular relates to a method for performing specific processing on the Internet information obtained by crawling, and then predicting and pre-warning the risk of a specific event in a specific area, and is mainly applied to food safety information monitoring, risk warning, etc. Emergency handling of unconventional emergencies. Background technique [0002] In recent years, food safety incidents such as poisonous capsules, re-cooked oil, clenbuterol, dyed steamed bread, plasticizers, poisonous cucumbers, etc. have occurred frequently, which not only caused extremely bad social effects, but also brought a lot of economic losses. In order to avoid or minimize the harm caused by these food safety incidents, event-based risk early warning technology has begun to receive great attention. In order to carry out event-based risk warning, it is necessary to discover the information of the...

AI Technical Summary

Problems solved by technology

[0005] For example, some research work uses Internet information for risk warning, but how to process the collected information and what measures to take in this research requires manual participation and decision-making

There are also research works that can automatically provide food safety risk warnings for additives and supplements based on Internet information, but there are some shortcomings: the quality of the information is not considered in the process, and the collected garbage information is not filtered-this will affect the early warning. Accuracy; in the event information discovery process, the category information obtained after keyword matching is directly used as the same event information, and there may be inconsistencies in the subjects corresponding to the information, etc.

Through literature review, no such studies have been found

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