Search Results for author: Xinwen Cheng

Found 5 papers, 2 papers with code

Friendly Sharpness-Aware Minimization

1 code implementation19 Mar 2024 Tao Li, Pan Zhou, Zhengbao He, Xinwen Cheng, Xiaolin Huang

By decomposing the adversarial perturbation in SAM into full gradient and stochastic gradient noise components, we discover that relying solely on the full gradient component degrades generalization while excluding it leads to improved performance.

Machine Unlearning by Suppressing Sample Contribution

no code implementations23 Feb 2024 Xinwen Cheng, Zhehao Huang, Xiaolin Huang

Machine Unlearning (MU) is to forget data from a well-trained model, which is practically important due to the "right to be forgotten".

Machine Unlearning

Low-Dimensional Gradient Helps Out-of-Distribution Detection

no code implementations26 Oct 2023 Yingwen Wu, Tao Li, Xinwen Cheng, Jie Yang, Xiaolin Huang

To bridge this gap, in this paper, we conduct a comprehensive investigation into leveraging the entirety of gradient information for OOD detection.

Dimensionality Reduction Out-of-Distribution Detection

Self-Ensemble Protection: Training Checkpoints Are Good Data Protectors

1 code implementation22 Nov 2022 Sizhe Chen, Geng Yuan, Xinwen Cheng, Yifan Gong, Minghai Qin, Yanzhi Wang, Xiaolin Huang

In this paper, we uncover them by model checkpoints' gradients, forming the proposed self-ensemble protection (SEP), which is very effective because (1) learning on examples ignored during normal training tends to yield DNNs ignoring normal examples; (2) checkpoints' cross-model gradients are close to orthogonal, meaning that they are as diverse as DNNs with different architectures.

FG-UAP: Feature-Gathering Universal Adversarial Perturbation

no code implementations27 Sep 2022 Zhixing Ye, Xinwen Cheng, Xiaolin Huang

Deep Neural Networks (DNNs) are susceptible to elaborately designed perturbations, whether such perturbations are dependent or independent of images.

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