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Home/Glossary/HNSW
AI Glossary Term

What does “HNSW” mean?

Definition

A graph-based index structure for fast approximate nearest-neighbor search over high-dimensional vectors.

Related terms

ANN (Approximate Nearest Neighbor)
Algorithms that find vectors close to a query without exhaustive comparison, trading exactness for speed.
Vector Database
A database optimized for storing and querying high-dimensional embedding vectors.
Knowledge Graph
A graph structure of entities and relationships used for reasoning or retrieval.
Embedding Model
A model specialized for converting data into vectors used for semantic search, clustering, and retrieval.
Hybrid Search
A retrieval approach that combines keyword (lexical) search with vector (semantic) search for better recall and precision.
Data Drift
A shift in real-world input data over time that can degrade model performance.

See also

RerankerSentencePieceBPE (Byte Pair Encoding)Cross-EncoderSliding Window AttentionBi-EncoderALiBiLLM-as-Judge
PreviousANN (Approximate Nearest Neighbor)NextReranker
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