Chain-of-Verification (CoVe)
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Meta's Chain-of-Verification adds a "deliberation" step where the LLM fact-checks its own draft before finalizing.
Four-step pipeline: (1) Draft an initial response; (2) plan verification questions for fact-checking; (3) answer each verification question independently; (4) generate a final verified response.
Independent verification: Each verification question is answered independently to avoid bias from other responses, producing more reliable fact-checks than joint answering.
Hallucination reduction: Produces measurable hallucination reductions on long-form QA tasks compared to standard and CoT prompting.
Self-correction pattern: Influential example of the "LLM as its own critic" pattern, foreshadowing many 2024 self-refinement techniques.
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