The invention relates to the technical field of intelligent
processing of document information, discloses a method and a
system for extracting RAG type data items and checking consistency for
engineering technology documents, and solves the problem that an existing scheme is difficult to consider high-accuracy extraction, cross-document consistency, strong
traceability and structured landing in
engineering technology document
data processing. The scheme comprises the following steps of: performing
layout analysis and necessary OCR (
Optical Character Recognition)
processing on a received document, and dividing the document into multiple levels of text blocks; carrying out vectorization
processing on the multi-level text blocks by adopting an embedding model subjected to two-stage fine adjustment, establishing a vector index and recalling candidate fragments to form a candidate fragment set; a cross
encoder with efficient
fine tuning of parameters is adopted to screen out high-correlation fragments; performing
standardization processing by extracting a target variable to form a structured
record; consistency checking is conducted on the target variables, and finally structured records and checking results are bound with minimum evidence fragments and corresponding position information to be exported through a format
list.