knowledge graphs
6 Articles

Temporal knowledge graph benchmarks: A data leakage audit
A 2026 audit of temporal knowledge graph benchmark data leakage: time-stripped overlap, inverse shortcuts, forecasting history, ranking protocols and a reproducible acceptance sheet with published comparisons.

Knowledge graph identifier versioning after corrections
A 2026 guide to knowledge graph identifier versioning: stable referents, correction responses, retirement and custody transfer, with a lifecycle matrix, historical replay tests and a proposed registry schedule.

RDF 1.2 provenance: triple terms, reifiers, named graphs
A 2026 migration analysis of RDF 1.2 provenance, including six assertion-safety tests, a 13-quad two-library round trip, and guidance on reifiers versus named graphs.

Google Knowledge Vault: What Survived at Web Scale
A 2026 evidence-led analysis of Google Knowledge Vault, its 1.6 billion unique triples, POPACCU+ error audit, provenance assumptions, and a defensible evaluation checklist.

Competency Questions: From Business Need to Ontology Test
A 2026 guide to ontology competency questions as traceability contracts, covering five CQ types, SPARQL and SHACL testing, fixtures, expected results, and regression evidence.

Merge or Relate? A Framework for Organization Records
A 2026 evidence framework for deciding when organization records share one identity or require a typed link, with a decision tree, five synthetic cases, invariants, and error-cost analysis.