The invention discloses a scientific and
technical literature hidden
problem identification method based on turning
semantics and a
knowledge graph, and relates to the technical field of
natural language processing, the method comprises the following steps: preprocessing a target scientific and
technical literature to obtain a structured corpus containing a
sentence boundary, a grammatical structure and a term
annotation; positioning turning words and identifying semantic questions based on a pre-constructed hierarchical turning word
bank to obtain a first candidate question set;
processing the negative expression in combination with a negative
expression pattern library and a co-occurrence analysis mechanism to obtain a second candidate question set; constructing a science and technology
knowledge graph to execute hole detection, and obtaining a third candidate
problem set; and after clustering, deduplication and scoring are carried out on the obtained three types of sets, a target scientific and
technical literature hidden problem structuring result is output. The technical problem that in the prior art, it is difficult to recognize expression in recessive
modes such as turning and negative in the scientific and technical literature is solved, and the technical effects that the recessive technical problems in the scientific and technical literature are precisely recognized, and the comprehensiveness and accuracy of recognition are remarkably improved are achieved.