Unverified50% confidenceFactExact time
U-Space extracts uncertainty signals from the model's internal residual representations and does not rely on external supervision.
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50%
Confidence
Long-term
Relevance
10/19/2026
First Seen
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UnverifiedU-Space's orthogonal basis assumes that residual representations are relatively stable, but its robustness across model families still needs to be tested.63% similarUnverifiedIsolating the LLM's uncertainty at the process entry point prevents it from directly affecting high-risk steps such as amount calculation or invoice generation.61% similarUnverified研究表明RLHF在模型残差流中留下的安全拒绝行为呈现低秩线性结构，主要分布在少数几个主方向上，因此易被正交投影移除61% similarUnverifiedUsing disagreements among multiple models as an uncertainty signal is a low-cost, automatable means of quality diagnosis.61% similarUnverifiedThe variance σ²(x) captures a mixture of epistemic uncertainty and aleatoric uncertainty, where the former reflects the model having seen little data and the latter reflects the inherent noise in the data itself.61% similar
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