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Free ebookRAGQuery RewritingHyDE

Advanced query rewriting for RAG

Query rewriting patterns that turn vague user input into retrievable questions: HyDE, multi-query fan-out, decomposition, step-back. Grounded in the complex-RAG-guide and deep-thinking-rag repos.

What you get

  • Identify query shapes that wreck naive vector retrieval
  • Apply HyDE to bridge the phrasing gap between users and documents
  • Fan out multi-query variants to widen coverage without tanking precision
  • Decompose multi-hop questions into ordered sub-queries
  • Measure rewrite quality separately from retrieval and generation

Inside

  • Why queries fail before retrieval does
  • HyDE: hypothetical document embeddings
  • Multi-query fan-out and fusion
  • Decomposition for multi-hop questions
  • Step-back prompting for abstract queries
  • Evaluation: grading the rewrite layer
  • Cost and latency tradeoffs
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Prefer a walkthrough? Watch the companion webinar.