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RAG14 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.

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