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Technical implementation · Entity & Knowledge Graph

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Definition

A knowledge graph is a structured database that represents entities, their attributes, and the relationships between them as a network of interconnected nodes — enabling AI systems to understand not just individual facts but the web of connections that give those facts context. Google’s Knowledge Graph is the most prominent example at web scale. The knowledge graph is the entity layer that AI search runs on. When an AI system generates a response about a brand, it draws from the brand’s position in the knowledge graph — what type of entity it is, what attributes it has, what other entities it is associated with, and how much prominence it has within its category. Building knowledge graph presence means building entity signals, structured data, Wikidata entries, and the corroborating third-party coverage that knowledge graph systems use to verify and expand their understanding of an entity.

Entity graph

Google Knowledge Graph

Wikidata

Entity verification

sameAs array

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