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Event extraction method and device, electronic equipment and readable storage medium

An event extraction and event type technology, applied in the computer field, can solve the problem that the event extraction method cannot take into account high efficiency, low cost and high accuracy at the same time, and achieve the effect of avoiding too much dependence on domain experience, reducing efficiency, and improving accuracy

Pending Publication Date: 2022-04-12
BEIJING XIAOMI MOBILE SOFTWARE CO LTD +1
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Problems solved by technology

[0003] Existing event extraction methods cannot take into account the factors of high efficiency, low cost, and high accuracy at the same time. Therefore, an event extraction method that can take into account these factors is urgently needed

Method used

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

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Embodiment Construction

[0043] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0044] In the event extraction task, generally speaking, the user needs to formulate an event type system and the important roles in each event type, that is, the schema. For example, for an event type such as "price reduction", the important roles that may be related to this event type include "time", "price reduction party", "price reduction item", "price reduction range" and so on. ...

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Abstract

The invention relates to an event extraction method and device, electronic equipment and a readable storage medium, and the method comprises the steps: carrying out the training of a training sample, obtaining an event type-event trigger word combination model, recognizing a verification sample through the event type-event trigger word combination model, and obtaining a prediction event type set and a prediction event trigger word set, a prediction event type set and a prediction event trigger word set are used as additional features to be fused into event argument recognition, and a plurality of event argument extraction models based on event types and a plurality of event argument extraction models based on event trigger words are used for performing event extraction on sentence texts in verification samples respectively. According to the event extraction method and device, the multiple first event extraction results of each sentence text are obtained, the event extraction result of the sentence text is determined from the obtained multiple first event extraction results, the accuracy and efficiency of event extraction are improved, meanwhile, the human / material resource cost is reduced, and the situation that the event extraction is excessively dependent on field experience is avoided.

Description

technical field [0001] The present disclosure relates to the field of computer technology, and in particular to an event extraction method, device, electronic equipment and readable storage medium. Background technique [0002] Event extraction is an information extraction task, which is a challenging task in the field of Natural Language Processing (NLP). Event extraction is an important element in identifying events related to a user's goal from a piece of open text. This open text can be semi-structured or unstructured. The direct goal of event extraction is to identify a specific type of event from the text and extract elements that play a given role in the event. [0003] Existing event extraction methods cannot take into account the factors of high efficiency, low cost, and high accuracy at the same time. Therefore, an event extraction method that can take these factors into account is urgently needed. Contents of the invention [0004] In order to overcome the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/33G06F40/211G06K9/62
Inventor 代文花新宇陈帅
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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