Approximate Nearest Neighbor (ann) Search Glossary Definition

Approximate Nearest Neighbor (ann) Search is a Database concept associated with document-oriented storage, where information is organized in flexible document structures rather than only fixed relational tables. In MongoDB contexts, the term may also reflect platform-specific behavior or documentation conventions.

Developers and data architects use this concept when modeling flexible records, designing application data access, or scaling document-oriented systems.

Related concepts include Collection.

Related concepts include Vector Search, Similarity Search and Embeddings.