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1 results about "Direct transformation" patented technology

Document information extraction method, system and program product combining logic constraints with reinforcement learning

This invention discloses a document information extraction method, system, and program product that combines logical constraints and reinforcement learning, relating to the fields of artificial intelligence and intelligent document processing technology. Firstly, by explicitly incorporating arithmetic rules into the reward function, this invention significantly reduces "numerical illusions" and substantially improves logical consistency. Secondly, it solves the problem of extracting borderless tables, deriving the table structure through semantic content and logical constraints instead of relying on visual dividing lines, making it particularly suitable for borderless complex tables such as medical invoices. Thirdly, this invention uses reinforcement learning to transform discrete business rules into dense supervisory signals to guide the optimization of the document information extraction model. Furthermore, the document information extraction model of this invention directly outputs JSON format conforming to the database schema, eliminating the need for complex post-processing steps and achieving direct conversion from images to a queryable database.
Owner:UNIV OF SCI & TECH OF CHINA