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We study black-box adversarial attacks for image classifiers in a constrained threat model, where adversaries can only modify a small fraction of pixels in the form of scratches on an image. We show that it is possible for adversaries to…

神经与进化计算 · 计算机科学 2020-08-07 Malhar Jere , Loris Rossi , Briland Hitaj , Gabriela Ciocarlie , Giacomo Boracchi , Farinaz Koushanfar

We introduce a grey-box adversarial attack and defence framework for sentiment classification. We address the issues of differentiability, label preservation and input reconstruction for adversarial attack and defence in one unified…

机器学习 · 计算机科学 2021-03-23 Ying Xu , Xu Zhong , Antonio Jimeno Yepes , Jey Han Lau

Deep neural networks are vulnerable to adversarial examples, even in the black-box setting where the attacker is only accessible to the model output. Recent studies have devised effective black-box attacks with high query efficiency.…

机器学习 · 计算机科学 2022-06-07 Zeyu Dai , Shengcai Liu , Ke Tang , Qing Li

Machine learning has been proven to be susceptible to carefully crafted samples, known as adversarial examples. The generation of these adversarial examples helps to make the models more robust and gives us an insight into the underlying…

计算与语言 · 计算机科学 2020-12-29 Sachin Saxena

We introduce the Adversarial Confusion Attack, a new class of threats against multimodal large language models (MLLMs). Unlike jailbreaks or targeted misclassification, the goal is to induce systematic disruption that makes the model…

计算与语言 · 计算机科学 2025-12-02 Jakub Hoscilowicz , Artur Janicki

Many machine learning algorithms are vulnerable to almost imperceptible perturbations of their inputs. So far it was unclear how much risk adversarial perturbations carry for the safety of real-world machine learning applications because…

机器学习 · 统计学 2018-02-19 Wieland Brendel , Jonas Rauber , Matthias Bethge

Deep neural networks are vulnerable to adversarial examples, which are crafted by adding human-imperceptible perturbations to original images. Most existing adversarial attack methods achieve nearly 100% attack success rates under the…

计算机视觉与模式识别 · 计算机科学 2022-04-15 Guoqiu Wang , Huanqian Yan , Ying Guo , Xingxing Wei

Adversarial examples are perturbed inputs designed to fool machine learning models. Adversarial training injects such examples into training data to increase robustness. To scale this technique to large datasets, perturbations are crafted…

Convolutional neural networks have been used to achieve a string of successes during recent years, but their lack of interpretability remains a serious issue. Adversarial examples are designed to deliberately fool neural networks into…

机器学习 · 计算机科学 2020-04-28 Jan Philip Göpfert , André Artelt , Heiko Wersing , Barbara Hammer

Deep Convolution Neural Networks (CNNs) can easily be fooled by subtle, imperceptible changes to the input images. To address this vulnerability, adversarial training creates perturbation patterns and includes them in the training set to…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Muzammal Naseer , Salman Khan , Munawar Hayat , Fahad Shahbaz Khan , Fatih Porikli

Deep convolutional neural networks can be highly vulnerable to small perturbations of their inputs, potentially a major issue or limitation on system robustness when using deep networks as classifiers. In this paper we propose a low-cost…

机器学习 · 计算机科学 2019-12-16 Amir Nazemi , Paul Fieguth

Recent studies have highlighted that deep neural networks (DNNs) are vulnerable to adversarial attacks, even in a black-box scenario. However, most of the existing black-box attack algorithms need to make a huge amount of queries to perform…

机器学习 · 统计学 2018-09-11 Yali Du , Meng Fang , Jinfeng Yi , Jun Cheng , Dacheng Tao

Nowadays, digital facial content manipulation has become ubiquitous and realistic with the success of generative adversarial networks (GANs), making face recognition (FR) systems suffer from unprecedented security concerns. In this paper,…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Run Wang , Felix Juefei-Xu , Qing Guo , Yihao Huang , Xiaofei Xie , Lei Ma , Yang Liu

Research of adversarial attacks is important for AI security because it shows the vulnerability of deep learning models and helps to build more robust models. Adversarial attacks on images are most widely studied, which include noise-based…

密码学与安全 · 计算机科学 2024-10-14 Xiaopei Zhu , Peiyang Xu , Guanning Zeng , Yingpeng Dong , Xiaolin Hu

Deep neural networks (DNNs) have achieved great success in various applications due to their strong expressive power. However, recent studies have shown that DNNs are vulnerable to adversarial examples which are manipulated instances…

机器学习 · 计算机科学 2020-07-06 Haonan Qiu , Chaowei Xiao , Lei Yang , Xinchen Yan , Honglak Lee , Bo Li

Deep neural networks can be exploited using natural adversarial samples, which do not impact human perception. Current approaches often rely on deep neural networks' white-box nature to generate these adversarial samples or synthetically…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Shashank Kotyan , Po-Yuan Mao , Pin-Yu Chen , Danilo Vasconcellos Vargas

Adversarial examples have gained tons of attention in recent years. Many adversarial attacks have been proposed to attack image classifiers, but few work shift attention to object detectors. In this paper, we propose Sparse Adversarial…

计算机视觉与模式识别 · 计算机科学 2020-12-29 Jiayu Bao

Machine learning models have been found to be susceptible to adversarial examples that are often indistinguishable from the original inputs. These adversarial examples are created by applying adversarial perturbations to input samples,…

机器学习 · 计算机科学 2019-09-18 Rayan Mosli , Matthew Wright , Bo Yuan , Yin Pan

Adversarial attacks constitute a notable threat to machine learning systems, given their potential to induce erroneous predictions and classifications. However, within real-world contexts, the essential specifics of the deployed model are…

计算机视觉与模式识别 · 计算机科学 2023-12-21 Jingwen Ye , Ruonan Yu , Songhua Liu , Xinchao Wang

It is significant to evaluate the security of existing digital image tampering localization algorithms in real-world applications. In this paper, we propose an adversarial attack scheme to reveal the reliability of such tampering…

计算机视觉与模式识别 · 计算机科学 2023-09-20 Yuqi Wang , Gang Cao , Zijie Lou , Haochen Zhu