Knowledge Graph

Full Definition

A knowledge graph is a database that stores information as a network of entities and the relationships between them. Google's Knowledge Graph, for example, stores facts about millions of entities including people, organizations, places, and concepts, along with the relationships connecting them. When Google knows that a physician specializes in cardiology, practices at a specific hospital, and is board-certified in their specialty, those facts exist in the knowledge graph as linked entity relationships rather than as unstructured text. For healthcare organizations, being accurately represented in knowledge graphs is critical because AI search systems draw from these structured entity databases when constructing answers. Structured data markup is the primary tool for feeding accurate information into knowledge graphs.