BuildBot

Retrieval Engineering

Hybrid search & reranking

Lesson 4 of 5

Combine dense vector search with sparse keyword scoring, then rerank the top candidates for a sharper final order.

What you'll learn

  • Understand why dense and sparse retrieval are complementary
  • Fuse keyword and vector scores into one hybrid ranking
  • Apply a reranking stage over the top candidates
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Not sure yet? Try the free lesson first: Embeddings & cosine similarity