Do LLMs Really Forget? Evaluating Unlearning with Knowledge Correlation and Confidence Awareness - Wei, Rongzhe; Niu, Peizhi; Hsu, Hans Hao-Hsun; Wu, Ruihan; Yin, Haoteng; Ghassemi, Mohsen; Li, Yifan; Potluru, Vamsi; Chien, Eli; Chaudhuri, Kamalika; Milenkovic, Olgica; Li, Pan (Advances in Neural Information Processing Systems, 2025)