2 docs tagged with "BM25"

Hybrid Search vs Dense Search in RAG: Which Retrieval Strategy Should You Use?

Compare hybrid search and dense search in RAG systems. Learn how semantic search, keyword search, BM25, and hybrid retrieval affect accuracy, recall, and production AI performance.

Sparse Retrieval in Information Retrieval: BM25, TF-IDF, and Lexical Search Explained

Learn how sparse retrieval works in information retrieval systems. Understand BM25, TF-IDF, inverted indexes, lexical search, and why sparse retrieval remains essential in modern RAG architectures.