Hybrid Search for LLMs

Show Notes

Pure vector search misses keyword matches; pure BM25 misses semantic meaning. Alex and Sam explore hybrid search, reciprocal rank fusion, and reranking for better RAG retrieval.

Key Takeaways

• Alex and Sam explore hybrid search, reciprocal rank fusion, and reranking for better RAG retrieval.
• Core concepts covered: Hybrid Search, Bm25, Reranking, and 2 more.
• Key trade-offs and design decisions you can apply to your own system design interviews.

Architecture Diagram