All terms
Optimization
Knowledge Graph
A network of entities and labeled relationships that machines can reason over.
Definition
A knowledge graph represents real-world things (such as people, places, or companies) as points and the relationships between them as labeled links, forming a network of facts a computer can read. Wikidata, Google's Knowledge Graph, and company-internal graphs are common examples. In AI applications, knowledge graphs anchor language model responses in real facts and reduce hallucination (confident made-up answers) by supplying structured context. They complement vector databases when reasoning over connected facts is needed.