The invention discloses an SEO content detection and release gating method and
system based on
information gain, and the method comprises the steps: carrying out the
paragraph-level viewpoint
sentence decomposition of a collected
search engine result page document and a candidate document for a target query, and constructing a
consensus semantic field; performing
semantic alignment and screening on the viewpoint sentences of the candidate documents and the
consensus semantic field, and performing multi-source evidence
verification and reliability aggregation on the screened effective newly-added viewpoint sentences to obtain macroscopic semantic novelty measurement of the candidate documents; constructing a
consensus knowledge graph to identify the structural hole and calculating the
gain of the structural hole; and carrying out joint scoring and issuing decisions, and outputting a structured evidence packet. According to the method, evaluation of novelty and
information gain is quantified by constructing a
ranking-weighted consensus semantic field; the reliability of the measurement
gain is ensured through evidence conditional macroscopic
divergence calculation and viewpoint
sentence-level multi-source
verification; and a structured evidence packet organized according to the viewpoint sentences is generated, so that the decision is well documented and auditable.