An Ontology-Guided, Deduplication-Aware Extraction Layer for Knowledge Graph Construction from Heterogeneous Documents
Ontology-guided two-pass extraction with a locally hosted Qwen3.5-9B over a Kafka document stream. Live ontology-slice retrieval cut catalog overhead by ~94%, and a six-algorithm deduplication + embedding-resolution pipeline raised search recall from 70% to 95% — with zero false merges.