BM25

Concept

BM25 (Okapi BM25) is a classic sparse ranking function that scores documents by exact term overlap with a query; it is commonly combined with vector search in hybrid retrieval.

Title graphic: BM25 (Concept)

Type	Concept
Wikipedia	en.wikipedia.org/wiki/Okapi_BM25

Articles about BM25 (1)

Why Pure Vector Search Fails Enterprise AI (And How to Fix It)
2026-08-26 · Mirko Peters
When you start deploying generative AI across your organization, you quickly realize that standard Retrieval-Augmented Generation (RAG) setups lean heavily on pure …

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Sources

Wikipedia: en.wikipedia.org/wiki/Okapi_BM25
Feed for this topic (RSS): entity/bm25/feed.xml
Articles on this topic: 1

Maintained by Mirko Peters (Microsoft MVP) · Last updated: 2026-11-03