Element extraction method and device, electronic equipment and storage medium

Abstract

The invention provides an element extraction method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining a to-be-extracted text and a vocabulary set of the to-be-extracted text; based on a matching result between character strings corresponding to every two characters in the to-be-extracted text and the vocabulary set, the relevancy between every two characters is determined, and the character strings are obtained by being intercepted from the to-be-extracted text with the two corresponding characters as starting points and ending points; coding each character in the to-be-extracted text on the basis of the relevancy between every two characters to obtain an element boundary feature of each character; and determining an element extraction result of the to-be-extracted text based on the element boundary features of the characters. According to the element extraction method and device, the electronic equipment and the storage medium provided by the invention, the matched vocabularies and the original sentences do not need to be spliced, and the original input length is not changed, so that the coding efficiency is improved. In addition, compared with an existing vocabulary splicing method, the storage space is saved.

Description

technical field [0001] The present invention relates to the technical field of natural language processing, in particular to an element extraction method, device, electronic equipment and storage medium. Background technique [0002] The work of element extraction is mainly to extract structured information from unstructured text, which is a very important subfield in natural language processing. The introduction of lexical information into feature extraction has attracted more and more attention from researchers, especially in some professional fields with insufficient corpus, the role of domain vocabulary is even more significant. [0003] At present, element extraction methods that integrate lexical information usually need to concatenate several vocabularies on the original sentence, which increases the input length and affects the coding efficiency. In addition, the size of the word embedding layer (Embedding) of the existing feature extraction model is directly propor...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an element extraction method, device, electronic equipment and storage medium to solve the problem of splicing several words on the original sentence in the element extraction method in the prior art, resulting in increased input length, affecting coding efficiency and occupying a large storage space defect

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