rdf provenance

How to decide whether a federated SPARQL result is complete, incomplete or unknown: Darari et al. completeness statements, a query-level certificate, six failure tests and an 85% recall worked example, 2026.

How to verify a knowledge graph edge against its cited source span: a 2026 acceptance test with seven adversarial cases, four verdicts, support-rate arithmetic with Wilson intervals, and the literature behind each step.