Atlas · GenAI 2026
Hybrid Search
Hybrid search (dense embeddings + BM25/SPLADE, RRF)
conceptPeak: 2024Retrieval TechniquesAI consensus: 3/3
Prerequisites
Hybrid search is an optimization OF the RAG retrieval step — you must understand basic RAG to know what you're improving
- hardSemantic Search
Hybrid search combines dense (semantic) and sparse (keyword) retrieval — understanding both sides is required
Recommended reference
Formal & Piwowarski (2021) 'SPLADE: Sparse Lexical and Expansion Model for Information Retrieval' — SIGIR; foundational sparse retrieval paper
Notes from AI deep research
Anthropic Opus
Dense + sparse + RRF fusion. Must-have dla production RAG. Poprawia precision na dokumentach 'twardych'
OpenAI Deep Research
Precyzja w dokumentach 'twardych' [OA#33]
Google Deep Think
Optymalne łączenie gęstego z rzadkim [G#42]
Related skills
- → is part of: Retrieval-Augmented Generation(3/3)
- ← is subcategory of: BM25(0/3)
- ← is subcategory of: Dense Retrieval(0/3)