Title:
TEXT EXTRACTION METHOD, APPARATUS, AND DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/051871
Kind Code:
A1
Abstract:
A text extraction method, apparatus and device, and a storage medium. The method comprises: reading text to the extracted, and extracting an extraction type identifier comprised in the text to be extracted (S10); upon detection that the extraction type identifier is field extraction, invoking a multi-threaded process script to segment the text to be extracted into sentence sets (S20); converting sentences in the sentence sets into sentence vectors by means of the multi-threaded process script (S30); splicing the sentence vectors to obtain a target sentence vector (S40); inputting the target sentence vector into a first conditional random field model to obtain a first prediction result output by the first conditional random field model (S50); and extracting a target field from the text to be extracted according to the first prediction result by using an exact matching retrieval algorithm (S60). According to the method, an extraction length is determined according to an extraction type identifier, and corresponding conditional random field models are selected for text extraction depending on different extraction lengths so that text extraction is more targeted; furthermore, a multi-threaded process script is used for text segmentation so that the overall efficiency of text extraction is improved, and target field extraction by means of an exact matching retrieval algorithm also guarantees the accuracy of target field extraction.
Inventors:
HAO ZHENGHONG (CN)
XU KAIHE (CN)
WANG SHAOJUN (CN)
XU KAIHE (CN)
WANG SHAOJUN (CN)
Application Number:
PCT/CN2020/093466
Publication Date:
March 25, 2021
Filing Date:
May 29, 2020
Export Citation:
Assignee:
PING AN TECH SHENZHEN CO LTD (CN)
International Classes:
G06F16/33
Foreign References:
| CN110781276A | 2020-02-11 | |||
| CN109189820A | 2019-01-11 | |||
| CN110019794A | 2019-07-16 | |||
| CN107808011A | 2018-03-16 | |||
| US20110035210A1 | 2011-02-10 |
Attorney, Agent or Firm:
INTELLECPRO CHINA LIMITED (CN)
Download PDF: