Event extraction method and device, equipment and storage medium

A technology of event extraction and event triggering, which is applied in the fields of instruments, electrical digital data processing, calculation, etc., can solve the problems of cumbersome processing procedures and low efficiency of event extraction, so as to improve accuracy, improve event extraction efficiency, and reduce model scale Effect

Pending Publication Date: 2021-05-28
合肥讯飞数码科技有限公司
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Problems solved by technology

The processing flow of the above-mentioned conventional event extraction method is cumbersome, and the event extraction efficiency is not high

Method used

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  • Event extraction method and device, equipment and storage medium
  • Event extraction method and device, equipment and storage medium
  • Event extraction method and device, equipment and storage medium

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Embodiment Construction

[0048] The technical solution of the embodiment of the present application is applicable to the application scenario of extracting events from the text. By adopting the technical solution of the embodiment of the present application, the event trigger words and event arguments can be determined from the text, thereby realizing event extraction. Moreover, the embodiment of the present application can simultaneously determine the event trigger word and the event argument from the text through one information extraction, which has higher event extraction efficiency.

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art witho...

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Abstract

The invention provides an event extraction method and device, equipment and a storage medium, and the method comprises the steps: the to-be-extracted text is inputted into a pre-trained event extraction model to acquire a category label of each text unit in the to-be-extracted text; by taking the category label as an event extraction result, the event extraction model is obtained through training by taking a text sequence as a training sample and taking an event trigger word position tag of the text sequence and a category tag of each text unit of the text sequence as a first type sample tag, wherein the category label of the text unit comprises a label of an event trigger word type and an event argument type to which the text unit belongs. According to the method, event extraction can be realized, and multiple roles of the text in the event can be comprehensively identified, so that the integrity of event extraction is ensured.

Description

technical field [0001] The present application relates to the technical field of natural language processing, and in particular to an event extraction method, device, device and storage medium. Background technique [0002] Event extraction is an important part of information extraction and intelligence analysis. An event represents the occurrence of an action or a change in state. In an event, the verb or noun representing the action is used as the trigger word of the action or state, and the main argument role (also known as argument, such as time) involved in the action behavior is also included. , place, person, etc.). [0003] Therefore, extracting event trigger words and event arguments from text is the key to realize event extraction. Conventional event extraction methods usually extract event trigger words and event arguments from the text step by step, so as to obtain event extraction. The above-mentioned conventional event extraction method has a cumbersome proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F40/279G06F40/216
CPCG06F40/216G06F40/279
Inventor 王玉杰吴飞张浩宇方四安柳林徐承
Owner 合肥讯飞数码科技有限公司
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