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Yu-Kun Lai

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#natural language process... Apr 2026

GRADE: Probing Knowledge Gaps in LLMs through Gradient Subspace Dynamics

GRADE (GRAdient Dynamics for knowlEdge gap detection), which quantifies the knowledge gap via the cross-layer rank ratio of the gradient to that of the corresponding hidden state subspace, motivated by the property of gradients as estimators of the required knowledge updates for a given target.

Yujing Wang, Yuanbang Liang, Yu-Kun Lai et al. · arXiv.org · 1 citation