Method and device for extracting events from text data

A text data and event technology, applied in the direction of text database indexing, unstructured text data retrieval, special data processing applications, etc., can solve the problem of unable to extract multiple events, solve the problem of error transmission, improve efficiency and accuracy , the effect of improving performance

Active Publication Date: 2022-02-15
航天宏康智能科技(北京)有限公司
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Problems solved by technology

[0005] In view of the problem that the existing event extraction method can only extract a single event from the input text and cannot extract multiple events separately, this application provides a method and device for extracting events from text data

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  • Method and device for extracting events from text data
  • Method and device for extracting events from text data
  • Method and device for extracting events from text data

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[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art withou...

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Abstract

The present application provides a method and device for extracting events from text data, the method comprising: acquiring text data; determining a first feature sequence of the text data based on the text data; Binary labeling is performed on the first feature element of each first feature vector; events in the text data are extracted based on the marked first feature sequence. The method and device for extracting events from text data according to the present application solves the problem that multiple events cannot be extracted separately, and the method and device for extracting events from text data can separate one or more events in the input natural language text Extract to improve the efficiency and accuracy of event extraction.

Description

technical field [0001] The present application relates to the field of natural language processing, and more specifically, relates to a method and device for extracting events from text data. Background technique [0002] Event extraction (Event Extraction, EE) is a typical task in the field of natural language processing. Using event extraction technology, events of interest to users can be extracted from unstructured information and presented to users in a structured form. [0003] In general, event extraction may include trigger word identification and event argument extraction, wherein the trigger word may represent a core word of an event occurrence, and the event argument may represent event participants. In the existing event extraction process, the pipeline method or sequence labeling method is usually used to sequentially label the input natural language text to determine the trigger words and event arguments of the event. [0004] However, such an event extraction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/31G06N20/00
CPCG06F16/313G06N20/00
Inventor 王潇茵李瑞群丁醒醒郑俊康张家华
Owner 航天宏康智能科技(北京)有限公司
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