业务文档检索方法、装置、设备及存储介质

By implementing interactive learning and multi-attention mechanism encoding in a dual-tower model architecture, the problems of low efficiency and low accuracy in business document retrieval in the financial field are solved, achieving more efficient and accurate document retrieval.

CN116662488BActive Publication Date: 2026-07-17PING AN TECH (SHENZHEN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PING AN TECH (SHENZHEN) CO LTD
Filing Date
2023-06-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing business document retrieval methods suffer from low retrieval efficiency or low accuracy in the financial field.

Method used

A dual-tower model architecture is adopted for interactive learning, and a multi-attention mechanism is combined to perform vector encoding on the set of documents to be retrieved in the financial field. The vector representation capability of the model is improved through multi-stage training, including multi-stage general training of a pre-built information extraction model to obtain a standard dual-tower model, and multi-attention dense vector encoding and query vector encoding are performed using a standard document model, and finally document retrieval is performed.

Benefits of technology

It improves the accuracy and efficiency of document retrieval, especially in the financial field, where a single document can better match different queries, enhancing retrieval accuracy while maintaining the retrieval efficiency of the traditional dual-tower model.

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Abstract

本发明涉及金融科技领域的人工智能技术,揭露了一种业务文档检索方法,包括:对预构建的信息抽取模型进行多阶段通用训练,得到原始双塔模型,利用原始文档训练集合对原始双塔模型进行对比学习训练,得到包括标准查询模型及标准文档模型的标准双塔模型,利用标准文档模型对待检索文档集合进行多注意力稠密向量编码,得到稠密向量集合,利用标准查询模型对用户查询信息进行向量编码,得到查询向量,基于查询向量对稠密向量集合进行文档检索,得到文档检索结果。本发明还涉及区块链技术,所述文档检索结果可存储在区块链的节点中。本发明还提出一种业务文档检索装置、电子设备以及可读存储介质。本发明可以提高文档检索的效率及准确率。
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