Text information extraction method, system, device and medium

Abstract

The present invention provides a method, system, device and medium for extracting text information, including: acquiring a user's information file, the information file is text data formed after the user visits the destination; preprocessing the text data, according to the text The format of the data divides the text data to form multiple text blocks; uses OCR technology to identify the text of each of the text blocks to form document data corresponding to the format; combines the knowledge map, attention mechanism and two-way GRU network to construct a text classification model, Using the text classification model to classify the document data to obtain a classification result; according to the document data corresponding to the classification result, extract key information associated with the classification topic. The invention uses bidirectional GRU to encode context information and combines attention mechanism to make text classification model pay attention to the relationship between words in the text, which not only helps to mine deep-level feature information, but also improves the efficiency and accuracy of information extraction.

Description

technical field [0001] The invention belongs to the technical field of data processing, and in particular relates to a text information extraction method, system, equipment and medium. Background technique [0002] With the continuous development of information technology, computers have become an important medium for information transmission. Therefore, converting the text in images into a format that can be processed by computers is beneficial to people's understanding, processing and transmission of information. Many text-related tasks in the visual field, such as image retrieval, intelligent accessibility aids, etc., need to be constructed with accurate text recognition results. [0003] At present, user information files mainly exist in paper form. However, when user information needs to be queried quickly, it can only be browsed through manual search, which is not only time-consuming, laborious, inefficient, but also misses key information of users due to time urgency...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a text information extraction method, system, device and medium for solving the problem of low efficiency and accuracy in the extraction of text information in the prior art

Images