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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Benedikt Wagner

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Jul 2026

Two Axes of LLM Abstention: Answer Correctness and Question Answerability

A calibrated policy that answers only when an answerability score and a correctness score each clear a separately certifies behave differently: the unanswerable-answer rate is controllable at every scale, while the wrong-answer rate is capped by model accuracy, so the guarantee tightens as threshold policy certifies bo...

Benedikt Wagner · 5 citations · ⚡2

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