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Named entity identification method and device, computer device and storage medium

A named entity recognition and named entity technology, applied in the field of information retrieval, can solve the problems of consumption, long time, high cost and so on

Active Publication Date: 2021-10-26
CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the amount of data in the corpus is huge, the process of manually labeling the corpus requires high cost and long time consumption.

Method used

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  • Named entity identification method and device, computer device and storage medium
  • Named entity identification method and device, computer device and storage medium

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Embodiment Construction

[0044] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0045] It can be understood that the terms "first" and "second" used in this application may be used to describe various technical terms herein, but unless otherwise specified, these technical terms are not limited by these terms. These terms are only used to distinguish one term from another. For example, without departing from the scope of the present application, the third preset threshold and the fourth preset threshold may be the same or different.

[0046] With the rapid development of the Internet and the information industry, massive text data is constantly being ...

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Abstract

The invention relates to a named entity identification method and device, a computer device and a storage medium. The method comprises the following steps of randomly selecting a preset number of texts from a corpus to form a training text library, and determining the segmented words in each text in the training text library based on a first preset algorithm; labeling the segmented words in each text in the training text library based on a second preset algorithm, wherein the labeling result of the word segmentation is a named entity or an entity trigger word; constructing a trigger word dictionary, wherein the trigger word dictionary is used for storing the named entities and entity trigger words which have corresponding relations in the training text library; and performing named entity identification on the to-be-identified text based on the trigger word dictionary. According to the present invention, the to-be-identified named entity is identified by utilizing the relationship between the entity trigger words and the named entities and manual annotation on all texts in the corpus is not needed, so that the identification efficiency is improved, and the identification cost is reduced.

Description

technical field [0001] The present application relates to the technical field of information retrieval, in particular to a named entity recognition method, equipment, computer equipment and storage media. Background technique [0002] With the rapid development of the Internet and the information industry, massive text data is constantly being generated. How to efficiently obtain useful information from massive text data has become a research hotspot. Information extraction technology has emerged as the times require, and named entity recognition is information extraction. A subtask of , whose purpose is to extract specified named entities from massive text data. In the field of natural language processing applications, named entity recognition is the basic task of many natural language processing applications such as information retrieval, machine translation, and sentiment analysis. Therefore, its research is of great significance and value. [0003] In related technologi...

Claims

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Application Information

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IPC IPC(8): G06F40/295G06F40/284G06F40/242
CPCG06F40/295G06F40/284G06F40/242
Inventor 郑楷洪曾璐琨李胜周尚礼龚起航刘玉仙
Owner CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD
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