Retrieval and search · MLD-0129
BM25
A lexical ranking function using term frequency, inverse document frequency, and document-length normalization.
Original reference page · detailed expansion pending. Original definitions, examples, notes and citations are preserved below. New examples are illustrative, not benchmark results.
Original example
Rank text documents for a keyword query.
Original caveat
Tokenization and domain vocabulary still affect retrieval.
Context and aliases
Level: Intermediate. Stages: Data · Retrieval · Inference · Evaluation.
Tags: ML · NLP · SLM · LLM · IR.
Aliases: Okapi BM25.
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 ↗