Information extraction model training method, information extraction method and device

• Main Authors: LYU LEBIN, DING LONGYAO, JIANG NING, WU HAIYING, LI KUAN
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides an information extraction model training method and device and an information extraction method and device. The training method comprises the following steps: constructing a corresponding structured prompter template for each task in a plurality of joint information extraction tasks to obtain a plurality of structured prompter templates; obtaining first training sample data and second training sample data; pre-training a reference model based on the first training sample data and the plurality of structured prompter templates to obtain a trained pre-training model; performing fine tuning training on a pre-training model based on the second training sample data and the plurality of structured prompter templates to obtain a trained information extraction model; wherein the information extraction model is used for extracting the structured languages respectively corresponding to the plurality of joint information extraction tasks from the input text data based on the prompt of the construc