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Public opinion event mining method and system

An event and public opinion technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as affecting results, data sparseness, and a large number of manual labeling events, so as to improve applicability and prevent the spread of automatic word segmentation errors Effect

Inactive Publication Date: 2018-01-09
武汉红茶数据技术有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the method based on statistical machine learning requires a large number of human-labeled events. If users need to mine a new type of event, they need to mark a large number of events of this type.
Moreover, the event annotation corpus itself also faces the problems of unbalanced positive and negative examples and sparse data.
In addition, traditional event mining is based on automatic word segmentation, and word segmentation errors will directly affect the results of the next step

Method used

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  • Public opinion event mining method and system
  • Public opinion event mining method and system

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Embodiment Construction

[0041] In the following description, for purposes of illustration rather than limitation, specific details, such as specific device structures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0042] like figure 1 A schematic flowchart of a public opinion event mining method provided in Embodiment 1 of the present invention is given. like figure 1 As shown, the subject of execution of the method may be a server, and the method includes the following steps:

[0043] Step 1, constructing an event ontology corresponding to each preset event category in at least one preset event category;...

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Abstract

The invention relates to the field of natural language processing, in particular to a public opinion event mining method and system. The method comprises the following steps of constructing an event ontology corresponding to each preset event type in at least one preset event type; analyzing each event ontology to generate a rule representation corresponding to each event ontology; and obtaining ato-be-mined text, and mining the to-be-mined text according to the rule representation corresponding to each event ontology to obtain at least one target preset event type contained in the to-be-mined text. The tagging of massive data is avoided; the influence of word segmentation on event mining is avoided; and the spreading of automatic word segmentation errors is prevented. A user can maintainthe event ontology as needed, so that the applicability, mining efficiency and mining accuracy of the public opinion event mining method are improved.

Description

technical field [0001] The invention relates to the field of natural language processing, in particular to a method and system for mining public opinion events. Background technique [0002] Nowadays, the scope of use of the Internet is becoming wider and wider, and its influence is getting bigger and bigger. All kinds of information are increasing geometrically. Online public opinion has become more and more complicated, and its impact on real life is increasing day by day. Some major Internet public opinion events often have a greater impact on society. big influence. For government departments, public media and large enterprises, how to strengthen the timely monitoring of Internet public opinion events and take timely and effective measures to deal with them has become a major difficulty in Internet public opinion management. [0003] Event mining is an important research in the field of information extraction, the purpose is to mine event information from unstructured t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 姬东鸿吕晨
Owner 武汉红茶数据技术有限公司
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