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Hybrid Search for RAG: BM25 + Vectors in 50 Lines of Python

Hybrid search runs keyword search and vector search in parallel, then merges the two ranked lists into one, usually with Reciprocal Rank Fusion. It matters because the two methods fail in opposite ways: vector search misses product codes and proper nouns, while keyword search misses rephrased quest…

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  1. 2026-10-31 03:58 · DEV Community — Machine Learning
    Hybrid Search for RAG: BM25 + Vectors in 50 Lines of Python

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