Knowledge Graph
A structured network of entities, concepts, and their relationships. AI systems use knowledge graphs to understand how topics, people, places, and organizations relate to each other.
Also known as: entity graph
A knowledge graph is a structured representation of entities such as people, organizations, websites, articles, products, and topics, plus the relationships between them. Search engines and other software can use those connections to interpret context.
For a website, a useful graph keeps stable identifiers for recurring entities and connects them with accurate properties such as author, publisher, isPartOf, mainEntity, about, and sameAs. JSON-LD is one way to publish the graph, but valid syntax alone does not prove that an external system used it.
See Knowledge Graphs for AI Web Publishing for the implementation sequence, testing steps, and limits of the evidence.