https://www.m365.fm/entity/bm25/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.enhttps://www.m365.fm/community/u/mirko-p/blog/why-pure-vector-search-fails-enterprise-ai-and-how-to-fix-it/https://www.m365.fm/community/u/mirko-p/blog/why-pure-vector-search-fails-enterprise-ai-and-how-to-fix-it/Wed, 26 Aug 2026 13:09:05 -0000articleWhen you start deploying generative AI across your organization, you quickly realize that standard Retrieval-Augmented Generation (RAG) setups lean heavily on pure …