Retrieval and search · MLD-0952
Product quantization
Compressing vectors by splitting them into subspaces and encoding each with a learned codebook.
Original reference page · detailed expansion pending. Original definitions, examples, notes and citations are preserved below. New examples are illustrative, not benchmark results.
Original example
Reduce approximate-search memory.
Original caveat
Compression introduces distance-estimation error.
Context and aliases
Level: Intermediate. Stages: Data · Retrieval · Inference · Evaluation.
Tags: ML · NLP · SLM · LLM · IR.
Aliases: PQ.
Related concepts
Concepts linking here
Original references
- Faiss documentation ↗ · Reference link
- Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks ↗ · Consulted
- Sentence Transformers documentation ↗ · Reference link
- Original reference URL ↗