Knowledge Graph
Definition
A knowledge graph is a network of entities and relationships that machines use to understand how people, brands, and concepts connect.
Full definition
Search engines and some AI systems maintain graphs of entities (nodes) and relations (edges)—for example, Company X founded by Person Y, sells Product Z. Structured data, Wikipedia, and consistent web signals can influence how an entity appears in such graphs.
For marketers, “being in the knowledge graph” often means rich panels, disambiguation, and cleaner entity resolution. Entity SEO practices feed the same underlying idea even when a specific vendor graph is opaque. See Entity SEO.