Search Results for author: Hanxun Huang

Found 8 papers, 6 papers with code

Multi-Trigger Backdoor Attacks: More Triggers, More Threats

no code implementations27 Jan 2024 Yige Li, Xingjun Ma, Jiabo He, Hanxun Huang, Yu-Gang Jiang

Arguably, real-world backdoor attacks can be much more complex, e. g., the existence of multiple adversaries for the same dataset if it is of high value.

LDReg: Local Dimensionality Regularized Self-Supervised Learning

1 code implementation19 Jan 2024 Hanxun Huang, Ricardo J. G. B. Campello, Sarah Monazam Erfani, Xingjun Ma, Michael E. Houle, James Bailey

Representations learned via self-supervised learning (SSL) can be susceptible to dimensional collapse, where the learned representation subspace is of extremely low dimensionality and thus fails to represent the full data distribution and modalities.

Self-Supervised Learning

Distilling Cognitive Backdoor Patterns within an Image

1 code implementation26 Jan 2023 Hanxun Huang, Xingjun Ma, Sarah Erfani, James Bailey

We conduct extensive experiments to show that CD can robustly detect a wide range of advanced backdoor attacks.

Exploring Architectural Ingredients of Adversarially Robust Deep Neural Networks

1 code implementation NeurIPS 2021 Hanxun Huang, Yisen Wang, Sarah Monazam Erfani, Quanquan Gu, James Bailey, Xingjun Ma

Specifically, we make the following key observations: 1) more parameters (higher model capacity) does not necessarily help adversarial robustness; 2) reducing capacity at the last stage (the last group of blocks) of the network can actually improve adversarial robustness; and 3) under the same parameter budget, there exists an optimal architectural configuration for adversarial robustness.

Adversarial Robustness

Neural Architecture Search via Combinatorial Multi-Armed Bandit

no code implementations1 Jan 2021 Hanxun Huang, Xingjun Ma, Sarah M. Erfani, James Bailey

NAS can be performed via policy gradient, evolutionary algorithms, differentiable architecture search or tree-search methods.

Evolutionary Algorithms Neural Architecture Search

Imbalanced Gradients: A Subtle Cause of Overestimated Adversarial Robustness

1 code implementation24 Jun 2020 Xingjun Ma, Linxi Jiang, Hanxun Huang, Zejia Weng, James Bailey, Yu-Gang Jiang

Evaluating the robustness of a defense model is a challenging task in adversarial robustness research.

Adversarial Robustness

Normalized Loss Functions for Deep Learning with Noisy Labels

4 code implementations ICML 2020 Xingjun Ma, Hanxun Huang, Yisen Wang, Simone Romano, Sarah Erfani, James Bailey

However, in practice, simply being robust is not sufficient for a loss function to train accurate DNNs.

Ranked #30 on Image Classification on mini WebVision 1.0 (ImageNet Top-1 Accuracy metric)

Learning with noisy labels

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