Public opinion event detection method, device and device

A technology of event detection and public opinion, applied in the field of semantic analysis, can solve the problems of time-consuming, low-precision data volume, etc., and achieve the effect of reducing modeling time and avoiding the influence of model public opinion detection accuracy

Active Publication Date: 2019-02-01
PING AN TECH (SHENZHEN) CO LTD
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Problems solved by technology

The main purpose is to solve the technical problems that the current semantic analysis models for public opinion detection in the network use separate modeling, but separate modeling is time-consuming, and the accuracy may be affected by low data volume

Method used

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  • Public opinion event detection method, device and device
  • Public opinion event detection method, device and device
  • Public opinion event detection method, device and device

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Embodiment Construction

[0026] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0027] The embodiment of the present application provides a public opinion event detection method. When it is necessary to detect public opinion events in other fields, there is no need to use a large amount of data for model training, and only need to use a small amount of data in other fields for transfer learning training, and you can get The text classification model can not only improve the detection accuracy of the model, but ...

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Abstract

A method for detect public opinion event Installations and equipment, The methods include: On the basis of a large number of data training in the source domain, the text classification model that candetect public opinion in the corresponding domain is obtained by using a small amount of data from other domains to carry out re-migration training, and the basic model is used as the text classification model for public opinion detection in the source domain. Obtaining a text classification model of a target domain to which an event to be detected belongs from the obtained plurality of text classification models, The public opinion of the event to be detected is analyzed, and the probability value of the public opinion event belonging to the target domain is analyzed. According to the resultof the comparison between the probability value and the corresponding predetermined threshold, whether the event to be detected is the public opinion event of the target domain is judged, and then thepublic opinion event is processed in a timely manner. This scheme can not only reduce the modeling time, but also avoid the impact of low data volume in the corresponding domain on the model public opinion detection accuracy.

Description

technical field [0001] The present application relates to the technical field of semantic analysis, in particular to a public opinion event detection method, device and equipment. Background technique [0002] In recent years, with the rapid development of the Internet, network media, as a new form of information dissemination, has penetrated into people's daily life. Netizens’ active speech has reached an unprecedented level. Whether it is a major domestic or international event, online public opinion can be formed immediately. Through this kind of network, opinions and thoughts can be expressed, which in turn generates huge pressure on public opinion, which cannot be ignored by any department or organization. the point. [0003] In response to the pressure of public opinion generated on the Internet, through public opinion detection technology, relevant departments can keep abreast of public opinion trends, so that they can timely warn public opinion events and correct th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/35
CPCY02D10/00
Inventor 金戈徐亮肖京
Owner PING AN TECH (SHENZHEN) CO LTD
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