Why it matters

HyDE handles retrieval mismatch. Understanding shapes advanced retrieval.

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The architecture

LLM generates draft answer.

Embed draft.

Retrieve documents like the draft.

HyDE flowQueryuser inputLLM drafts answerhypothetical docEmbed draftsearchSolves query-doc embedding mismatch when queries differ from doc style
HyDE.
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How it works end to end

LLM prompt: draft an answer to query.

Embed draft (not query).

Vector search.

Retrieved docs used for final answer.