RAG•14 min read
Advanced RAG Techniques: Reranking and Hybrid Search
Move beyond basic RAG implementations with reranking, hybrid search, and multi-stage retrieval. Learn how to improve accuracy by 20-40% with these advanced techniques.
Advanced RAG Techniques: Reranking and Hybrid Search
Basic RAG uses simple vector search, but advanced techniques can significantly improve retrieval accuracy and response quality.
Reranking
Reranking uses cross-encoder models to re-score initial retrieval results. This can improve accuracy by 20-40% by better understanding query-document relationships.
Hybrid Search
Combining semantic (vector) search with keyword (BM25) search provides better coverage. Some queries benefit from semantic understanding, others from exact keyword matches.