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Event extraction method, related equipment and readable storage medium

An event extraction and event technology, applied in computer components, special data processing applications, instruments, etc., can solve the problem of low accuracy of event extraction results, achieve the effect of improving accuracy and reducing the impact of cascading errors

Pending Publication Date: 2022-03-18
IFLYTEK CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, using the current event extraction scheme for event extraction will lead to low accuracy of event extraction results

Method used

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  • Event extraction method, related equipment and readable storage medium
  • Event extraction method, related equipment and readable storage medium
  • Event extraction method, related equipment and readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0149] As an implementable manner, the parameter extraction model includes an encoder and a decoder;

[0150] The encoder is used to encode the text to obtain a feature vector of the text;

[0151] The decoder is used to decode the feature vector of the text to obtain an output vector, and the output vector is used to indicate the parameter content in the text corresponding to the preset event type and parameter type combination.

[0152] As an implementable manner, the event determination unit includes:

[0153] A candidate event determining unit, configured to combine parameter information of the same event type to obtain at least one candidate event contained in the text;

[0154] an event to be split determining unit, configured to determine an event to be split from the at least one candidate event;

[0155] An event splitting unit, configured to split the event to be split to obtain split events;

[0156] The event determination subunit is configured to determine an e...

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PUM

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Abstract

The invention discloses an event extraction method, related equipment and a readable storage medium. In the scheme, a text to be subjected to event extraction is input into a parameter extraction model, after the parameter extraction model processes the text, parameter information corresponding to the text is output, and based on the parameter information corresponding to the text, at least one event contained in the text is determined. In the method, the parameter extraction model takes the parameter content corresponding to each preset event type and parameter type combination marked by the training text as the sample label, so that the joint learning of event detection and parameter identification is realized, and the cascade error influence is reduced. Therefore, by adopting the scheme, the accuracy of the event extraction result can be improved.

Description

technical field [0001] The present application relates to the technical field of natural language processing, and more specifically, relates to an event extraction method, related equipment, and a readable storage medium. Background technique [0002] An event refers to a series of activities around a certain theme in a specific time and space (time, space), participated by one or more characters (event subjects). Event Extraction (Event Extraction, EE) refers to the structured extraction of event parameters. As a subtask of information extraction, its purpose is to extract events of interest to users from unstructured information and present them to users in a structured manner. [0003] However, using the current event extraction scheme for event extraction will lead to low accuracy of event extraction results. [0004] Therefore, how to improve the accuracy of event extraction results has become an urgent technical problem to be solved by those skilled in the art. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/35G06K9/62
CPCG06F16/35G06F18/214G06F18/253
Inventor 赵崇帅顾成敏代旭东周维李宝善陈志刚魏思
Owner IFLYTEK CO LTD
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