vector search

1 lesson tagged vector search: free, quiz-checked micro-lessons.

Hybrid Retrieval for RAG: BM25, Dense Vectors, and Cross-Encoder Reranking

Build a production-grade retrieval pipeline combining BM25 keyword search with dense vector search, then sharpen precision with cross-encoder rerankers (Cohere Rerank, Voyage rerank-2, BGE). Learn when each layer matters and how to wire them together.

12 steps·~18 min

Hybrid Retrieval for RAG: BM25, Dense Vectors, and Cross-Encoder Reranking

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