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Knowledge Graph

A knowledge graph is a structured database that represents real-world entities (people, places, concepts) and the relationships between them as an interconnected network of nodes and edges. Knowledge graphs enable AI systems to understand context and connections — for example, knowing that "Paris is the capital of France" and "France is in Europe" lets the system infer that Paris is in Europe.

Example

Google's Knowledge Graph powers the information panels you see in search results. When you search "Albert Einstein," it displays his birth date, nationality, field, Nobel Prize, and related scientists — all drawn from a structured graph of entities and relationships, not from reading web pages.

Related Terms

Retrieval-Augmented Generation (RAG)EmbeddingGroundingSemantic Search

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