Author

Vaibhav Dangaich

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Preprint Aug 2026

Curate Before You Connect: Identity and Ontology Tagging in a Production Knowledge Graph

This paper describes the ingestion and ontology-tagging layer that turns a validated extraction stream into a knowledge graph of 537,157 entities and 2,198,567 relationships drawn from 98,795 government documents, and describes a record-identity ladder that decides sameness from identifier columns, name columns, display names and type-scoped position rather than from name similarity.

Vaibhav Dangaich, Kevin Lewis, Kundeshwar Pundalik · 0 citations

Jul 2026

An Ontology-Guided, Deduplication-Aware Extraction Layer for Knowledge Graph Construction from Heterogeneous Documents

A production extraction layer that converts a live document stream into a validated knowledge graph aligned to a formal ontology, and improved search recall from roughly 70 to 95 percent with no false merges, and corrected seven classes of silent quality defect.

Vaibhav Dangaich, Kevin Lewis, Kundeshwar Pundalik · arXiv.org · 0 citations