From Flat Facts to Sharp Hallucinations: Detecting Stubborn Errors via Gradient Sensitivity

Yee Zhing Liew, Andrew Huey Ping Tan, Anwar P. P. Abdul Majeed

Traditional hallucination detection fails on "Stubborn Hallucinations" - errors where LLMs are confidently wrong. We propose a geometric solution: Embedding-Perturbed Gradient Sens…