Entity · technique

epistemic uncertainty

techniqueactiveepistemic-uncertainty-912b8e40·1 events·first seen May 27, 2026

Aliases: epistemic uncertainty

Co-occurring entities

Reinforcement Learning from Human Feedback MUSE sycophancy

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epistemic markers Epistemic Modesty BeyondUncertainty Uncertainty Quantification epistemic-separation regularizer Uncertainty-Aware Generation and Decision-Making Under Ambiguity Uncertainty Calibration Verbal Uncertainty Expression Reinforcement Learning with Metacognitive Feedback Elicits Faithful Uncertainty Expression in LLMs Opaque Epistemic Mediation: How LLM Deployment Configurations Shape the Validation of Pseudo-Science token-wise self-certainty Dynamic-Probabilistic Consistency Gap

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6arXiv · cs.CL·May 27, 2026·source ↗

MUSE Framework Disentangles Sycophancy from Epistemic Uncertainty in LLM Conformity

This paper introduces MUSE, a two-stage evaluation framework that separates two distinct mechanisms driving LLM conformity to user pushback: sycophantic conformity (yielding despite high certainty) and uncertainty-driven conformity (yielding proportional to epistemic uncertainty). The authors demonstrate that prior work's attribution of all conformity to RLHF-induced sycophancy is incomplete, as a model's inference-time uncertainty is an independent contributing factor. Ablation studies show both conformity types increase with perceived user expertise and plausibility of user suggestions, pointing toward distinct intervention strategies for each mechanism.

Evaluation and Benchmarking AI Safety Research Reinforcement Learning from Human Feedback MUSE epistemic uncertainty +2 more