The invention discloses a construction method of an
engineering specification intelligent question-answering
system oriented to pavement health management. Currently,
knowledge processing in the field of
road engineering faces the problems of tedious
information retrieval, limited application of a large
language model and the like, and an efficient question-answering
system is urgently needed for intelligent road development. The
system is built through the steps of data preprocessing,
rewriting, retrieval optimization,
model testing and the like. A BERT text filter screening problem is introduced, a road industry specification context is divided, a three-layer retrieval mechanism of a vector, a full text and a
knowledge graph is constructed, and a basic
large model and an RAG technology are applied. According to the method, efficient retrieval and quick response are achieved, the answer accuracy is improved, the
data quality and retrieval efficiency are guaranteed, industry knowledge resources are integrated, the requirement of an intelligent highway for accurately obtaining industry specifications is met, and the problem of
knowledge processing and intelligent interaction in the field of
road engineering is effectively solved.