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Adversarial attack is aimed at fooling the target classifier with imperceptible perturbation. Adversarial examples, which are carefully crafted with a malicious purpose, can lead to erroneous predictions, resulting in catastrophic…

Machine Learning · Computer Science 2021-11-19 Mingu Kang , Trung Quang Tran , Seungju Cho , Daeyoung Kim

Deep neural networks have been widely used in various downstream tasks, especially those safety-critical scenario such as autonomous driving, but deep networks are often threatened by adversarial samples. Such adversarial attacks can be…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Yutong Zhang , Yao Li , Yin Li , Zhichang Guo

Adversarial attack methods have demonstrated the fragility of deep neural networks. Their imperceptible perturbations are frequently able fool classifiers into potentially dangerous misclassifications. We propose a novel way to interpret…

Machine Learning · Computer Science 2018-03-22 Joachim Folz , Sebastian Palacio , Joern Hees , Damian Borth , Andreas Dengel

We show that when taking into account also the image domain $[0,1]^d$, established $l_1$-projected gradient descent (PGD) attacks are suboptimal as they do not consider that the effective threat model is the intersection of the $l_1$-ball…

Machine Learning · Computer Science 2023-11-27 Francesco Croce , Matthias Hein

Deep neural network models are used today in various applications of artificial intelligence, the strengthening of which, in the face of adversarial attacks is of particular importance. An appropriate solution to adversarial attacks is…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Mohammad Khalooei , Mohammad Mehdi Homayounpour , Maryam Amirmazlaghani

Deep neural networks are vulnerable to adversarial examples. Adversarial training (AT) is an effective defense against adversarial examples. However, AT is prone to overfitting which degrades robustness substantially. Recently, data…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Lin Li , Jianing Qiu , Michael Spratling

Latent diffusion models have recently demonstrated superior capabilities in many downstream image synthesis tasks. However, customization of latent diffusion models using unauthorized data can severely compromise the privacy and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Sen Peng , Mingyue Wang , Jianfei He , Jijia Yang , Xiaohua Jia

Adversarial attacks on image models threaten system robustness by introducing imperceptible perturbations that cause incorrect predictions. We investigate human-aligned learned lossy compression as a defense mechanism, comparing two learned…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Samuel Räber , Andreas Plesner , Till Aczel , Roger Wattenhofer

Deep models are highly susceptible to adversarial attacks. Such attacks are carefully crafted imperceptible noises that can fool the network and can cause severe consequences when deployed. To encounter them, the model requires training…

Machine Learning · Computer Science 2022-04-11 Gaurav Kumar Nayak , Ruchit Rawal , Anirban Chakraborty

Deep learning models are vulnerable to adversarial examples, which can fool a target classifier by imposing imperceptible perturbations onto natural examples. In this work, we consider the practical and challenging decision-based black-box…

Machine Learning · Computer Science 2021-05-11 Qi-An Fu , Yinpeng Dong , Hang Su , Jun Zhu

Deep convolutional neural networks are susceptible to adversarial attacks. They can be easily deceived to give an incorrect output by adding a tiny perturbation to the input. This presents a great challenge in making CNNs robust against…

Machine Learning · Computer Science 2021-04-21 Yunrui Yu , Xitong Gao , Cheng-Zhong Xu

The security of the Person Re-identification(ReID) model plays a decisive role in the application of ReID. However, deep neural networks have been shown to be vulnerable, and adding undetectable adversarial perturbations to clean images can…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Yunpeng Gong , Zhiyong Zeng , Liwen Chen , Yifan Luo , Bin Weng , Feng Ye

We present a novel adversarial detection and correction method for machine learning classifiers.The detector consists of an autoencoder trained with a custom loss function based on the Kullback-Leibler divergence between the classifier…

Machine Learning · Computer Science 2020-02-24 Giovanni Vacanti , Arnaud Van Looveren

Adversarial purification using generative models demonstrates strong adversarial defense performance. These methods are classifier and attack-agnostic, making them versatile but often computationally intensive. Recent strides in diffusion…

Machine Learning · Computer Science 2026-04-10 Himanshu Singh , A V Subramanyam

Neural networks are vulnerable to adversarial examples, which poses a threat to their application in security sensitive systems. We propose high-level representation guided denoiser (HGD) as a defense for image classification. Standard…

Computer Vision and Pattern Recognition · Computer Science 2018-05-09 Fangzhou Liao , Ming Liang , Yinpeng Dong , Tianyu Pang , Xiaolin Hu , Jun Zhu

Rapid progress is being made in developing large, pretrained, task-agnostic foundational vision models such as CLIP, ALIGN, DINOv2, etc. In fact, we are approaching the point where these models do not have to be finetuned downstream, and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Nathan Inkawhich , Gwendolyn McDonald , Ryan Luley

Adversarial examples reveal the vulnerability and unexplained nature of neural networks. Studying the defense of adversarial examples is of considerable practical importance. Most adversarial examples that misclassify networks are often…

Computer Vision and Pattern Recognition · Computer Science 2021-12-23 Wanting Yu , Hongyi Yu , Lingyun Jiang , Mengli Zhang , Kai Qiao

Many defenses have recently been proposed at venues like NIPS, ICML, ICLR and CVPR. These defenses are mainly focused on mitigating white-box attacks. They do not properly examine black-box attacks. In this paper, we expand upon the…

Machine Learning · Computer Science 2021-11-03 Kaleel Mahmood , Deniz Gurevin , Marten van Dijk , Phuong Ha Nguyen

Adversarial attacks present a significant security risk to image recognition tasks. Defending against these attacks in a real-life setting can be compared to the way antivirus software works, with a key consideration being how well the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Haibo Zhang , Zhihua Yao , Kouichi Sakurai

Deep Neural Networks (DNNs) are vulnerable to backdoor attacks. Due to the nature of Machine Learning as a Service (MLaaS) applications, black-box defenses are more practical than white-box methods, yet existing purification techniques…

Cryptography and Security · Computer Science 2026-03-31 Abdullah Arafat Miah , Yu Bi