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The language models, especially the basic text classification models, have been shown to be susceptible to textual adversarial attacks such as synonym substitution and word insertion attacks. To defend against such attacks, a growing body…

密码学与安全 · 计算机科学 2024-06-12 Xinyu Zhang , Hanbin Hong , Yuan Hong , Peng Huang , Binghui Wang , Zhongjie Ba , Kui Ren

Numerous studies have demonstrated the susceptibility of deep neural networks (DNNs) to subtle adversarial perturbations, prompting the development of many advanced adversarial defense methods aimed at mitigating adversarial attacks.…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Linyu Tang , Lei Zhang

Deep Learning models are highly susceptible to adversarial manipulations that can lead to catastrophic consequences. One of the most effective methods to defend against such disturbances is adversarial training but at the cost of…

计算机视觉与模式识别 · 计算机科学 2021-04-08 Samuel Henrique Silva , Arun Das , Ian Scarff , Peyman Najafirad

Randomized smoothing is a well-established method for achieving certified robustness against l2-adversarial perturbations. By incorporating a denoiser before the base classifier, pretrained classifiers can be seamlessly integrated into…

机器学习 · 计算机科学 2025-09-16 Ali Hedayatnia , Mostafa Tavassolipour , Babak Nadjar Araabi , Abdol-Hossein Vahabie

Multimodal large language models (MLLMs) have achieved impressive performance across diverse tasks by jointly reasoning over textual and visual inputs. Despite their success, these models remain highly vulnerable to adversarial…

机器学习 · 计算机科学 2025-11-03 Guangzhi Su , Shuchang Huang , Yutong Ke , Zhuohang Liu , Long Qian , Kaizhu Huang

Deep neural network-based image compression has been extensively studied. However, the model robustness which is crucial to practical application is largely overlooked. We propose to examine the robustness of prevailing learned image…

计算机视觉与模式识别 · 计算机科学 2023-06-09 Tong Chen , Zhan Ma

Recent works have shown that deep neural networks are vulnerable to adversarial examples that find samples close to the original image but can make the model misclassify. Even with access only to the model's output, an attacker can employ…

机器学习 · 计算机科学 2023-10-03 Quang H. Nguyen , Yingjie Lao , Tung Pham , Kok-Seng Wong , Khoa D. Doan

Recently, automatic speaker verification (ASV) based on deep learning is easily contaminated by adversarial attacks, which is a new type of attack that injects imperceptible perturbations to audio signals so as to make ASV produce wrong…

音频与语音处理 · 电气工程与系统科学 2024-07-10 Yibo Bai , Xiao-Lei Zhang , Xuelong Li

Machine learning security has recently become a prominent topic in the natural language processing (NLP) area. The existing black-box adversarial attack suffers prohibitively from the high model querying complexity, resulting in easily…

密码学与安全 · 计算机科学 2023-10-17 Wenjie Lv , Zhen Wang , Yitao Zheng , Zhehua Zhong , Qi Xuan , Tianyi Chen

Despite their unmatched performance, deep neural networks remain susceptible to targeted attacks by nearly imperceptible levels of adversarial noise. While the underlying cause of this sensitivity is not well understood, theoretical…

机器学习 · 计算机科学 2020-12-01 George Cazenavette , Calvin Murdock , Simon Lucey

It is imperative to ensure the stability of every prediction made by a language model; that is, a language's prediction should remain consistent despite minor input variations, like word substitutions. In this paper, we investigate the…

计算与语言 · 计算机科学 2024-06-06 Qian Lou , Xin Liang , Jiaqi Xue , Yancheng Zhang , Rui Xie , Mengxin Zheng

While adversarial training is considered as a standard defense method against adversarial attacks for image classifiers, adversarial purification, which purifies attacked images into clean images with a standalone purification model, has…

机器学习 · 计算机科学 2021-06-14 Jongmin Yoon , Sung Ju Hwang , Juho Lee

Recent advancements in Large Language Models (LLMs) have led to their widespread adoption in daily applications. Despite their impressive capabilities, they remain vulnerable to adversarial attacks, as even minor meaning-preserving changes…

机器学习 · 计算机科学 2025-12-11 Zixia Wang , Gaojie Jin , Jia Hu , Ronghui Mu

Large-scale pre-trained language models have shown outstanding performance in a variety of NLP tasks. However, they are also known to be significantly brittle against specifically crafted adversarial examples, leading to increasing interest…

计算与语言 · 计算机科学 2023-05-12 Han Cheol Moon , Shafiq Joty , Ruochen Zhao , Megh Thakkar , Xu Chi

Video recognition models remain vulnerable to adversarial attacks, while existing diffusion-based purification methods suffer from inefficient sampling and curved trajectories. Directly regressing clean videos from adversarial inputs often…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Duoxun Tang , Xueyi Zhang , Chak Hin Wang , Xi Xiao , Dasen Dai , Xinhang Jiang , Wentao Shi , Rui Li , Qing Li

Adversarial purification has achieved great success in combating adversarial image perturbations, which are usually assumed to be additive. However, non-additive adversarial perturbations such as blur, occlusion, and distortion are also…

计算机视觉与模式识别 · 计算机科学 2025-10-17 Junjie Nan , Jianing Li , Wei Chen , Mingkun Zhang , Xueqi Cheng

Despite the efficacy on a variety of computer vision tasks, deep neural networks (DNNs) are vulnerable to adversarial attacks, limiting their applications in security-critical systems. Recent works have shown the possibility of generating…

计算机视觉与模式识别 · 计算机科学 2018-12-21 Ziang Yan , Yiwen Guo , Changshui Zhang

Neural code models have found widespread success in tasks pertaining to code intelligence, yet they are vulnerable to backdoor attacks, where an adversary can manipulate the victim model's behavior by inserting triggers into the source…

密码学与安全 · 计算机科学 2024-10-29 Fangwen Mu , Junjie Wang , Zhuohao Yu , Lin Shi , Song Wang , Mingyang Li , Qing Wang

Deep Neural Networks (DNNs) are known to be susceptible to adversarial examples. Adversarial examples are maliciously crafted inputs that are designed to fool a model, but appear normal to human beings. Recent work has shown that pixel…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Pratik Vaishnavi , Tianji Cong , Kevin Eykholt , Atul Prakash , Amir Rahmati

Adversarial attacks to image classification systems present challenges to convolutional networks and opportunities for understanding them. This study suggests that adversarial perturbations on images lead to noise in the features…

计算机视觉与模式识别 · 计算机科学 2019-03-26 Cihang Xie , Yuxin Wu , Laurens van der Maaten , Alan Yuille , Kaiming He