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A single perturbation can pose the most natural images to be misclassified by classifiers. In black-box setting, current universal adversarial attack methods utilize substitute models to generate the perturbation, then apply the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Jing Wu , Mingyi Zhou , Shuaicheng Liu , Yipeng Liu , Ce Zhu

Vision-language models (VLMs) have significantly advanced autonomous driving (AD) by enhancing reasoning capabilities; however, these models remain highly susceptible to adversarial attacks. While existing research has explored white-box…

Computer Vision and Pattern Recognition · Computer Science 2025-01-24 Lu Wang , Tianyuan Zhang , Yang Qu , Siyuan Liang , Yuwei Chen , Aishan Liu , Xianglong Liu , Dacheng Tao

In this work, we study the black-box targeted attack problem from the model discrepancy perspective. On the theoretical side, we present a generalization error bound for black-box targeted attacks, which gives a rigorous theoretical…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Anqi Zhao , Tong Chu , Yahao Liu , Wen Li , Jingjing Li , Lixin Duan

Adversarial attack is a technique for deceiving Machine Learning (ML) models, which provides a way to evaluate the adversarial robustness. In practice, attack algorithms are artificially selected and tuned by human experts to break a ML…

Cryptography and Security · Computer Science 2020-12-11 Xiaofeng Mao , Yuefeng Chen , Shuhui Wang , Hang Su , Yuan He , Hui Xue

Multi-class text classification is one of the key problems in machine learning and natural language processing. Emerging neural networks deal with the problem using a multi-output softmax layer and achieve substantial progress, but they do…

Computation and Language · Computer Science 2020-03-26 Haiyang Xu , Junwen Chen , Kun Han , Xiangang Li

With the rapid advancement of retrieval-augmented vision-language models, multimodal medical retrieval-augmented generation (MMed-RAG) systems are increasingly adopted in clinical decision support. These systems enhance medical applications…

Cryptography and Security · Computer Science 2025-11-25 Yingjia Shang , Yi Liu , Huimin Wang , Furong Li , Wenfang Sun , Wu Chengyu , Yefeng Zheng

Deep-learning-based identity management systems, such as face authentication systems, are vulnerable to adversarial attacks. However, existing attacks are typically designed for single-task purposes, which means they are tailored to exploit…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Hanrui Wang , Shuo Wang , Cunjian Chen , Massimo Tistarelli , Zhe Jin

Many adversarial attack approaches are proposed to verify the vulnerability of language models. However, they require numerous queries and the information on the target model. Even black-box attack methods also require the target model's…

Cryptography and Security · Computer Science 2025-04-21 CheolWon Na , YunSeok Choi , Jee-Hyong Lee

Neural networks are vulnerable to adversarial examples, malicious inputs crafted to fool trained models. Adversarial examples often exhibit black-box transfer, meaning that adversarial examples for one model can fool another model. However,…

Machine Learning · Computer Science 2018-11-22 Qian Huang , Zeqi Gu , Isay Katsman , Horace He , Pian Pawakapan , Zhiqiu Lin , Serge Belongie , Ser-Nam Lim

Deep neural networks (DNNs) have achieved remarkable success in diverse fields. However, it has been demonstrated that DNNs are very vulnerable to adversarial examples even in black-box settings. A large number of black-box attack methods…

Machine Learning · Computer Science 2022-03-29 Junjie Fu , Jian Sun , Gang Wang

Unlike the white-box counterparts that are widely studied and readily accessible, adversarial examples in black-box settings are generally more Herculean on account of the difficulty of estimating gradients. Many methods achieve the task by…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Ziang Yan , Yiwen Guo , Changshui Zhang

Deep neural networks are known to be extremely vulnerable to adversarial examples under white-box setting. Moreover, the malicious adversaries crafted on the surrogate (source) model often exhibit black-box transferability on other models…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Xiaosen Wang , Xuanran He , Jingdong Wang , Kun He

The phenomenon of adversarial examples has been revealed in variant scenarios. Recent studies show that well-designed adversarial defense strategies can improve the robustness of deep learning models against adversarial examples. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Jialiang Sun , Wen Yao , Tingsong Jiang , Xiaoqian Chen

Adversarial ranking attacks have gained increasing attention due to their success in probing vulnerabilities, and, hence, enhancing the robustness, of neural ranking models. Conventional attack methods employ perturbations at a single…

Information Retrieval · Computer Science 2024-04-12 Yu-An Liu , Ruqing Zhang , Jiafeng Guo , Maarten de Rijke , Yixing Fan , Xueqi Cheng

Recent work has shown how easily white-box adversarial attacks can be applied to state-of-the-art image classifiers. However, real-life scenarios resemble more the black-box adversarial conditions, lacking transparency and usually imposing…

Cryptography and Security · Computer Science 2021-07-14 Andrei Ilie , Marius Popescu , Alin Stefanescu

Although deep-learning based video recognition models have achieved remarkable success, they are vulnerable to adversarial examples that are generated by adding human-imperceptible perturbations on clean video samples. As indicated in…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Zhipeng Wei , Jingjing Chen , Zuxuan Wu , Yu-Gang Jiang

Large language model (LLM) agents have demonstrated remarkable capabilities in complex reasoning and decision-making by leveraging external tools. However, this tool-centric paradigm introduces a previously underexplored attack surface,…

Artificial Intelligence · Computer Science 2026-01-08 Kanghua Mo , Li Hu , Yucheng Long , Zhihao Li

The success of deep learning research has catapulted deep models into production systems that our society is becoming increasingly dependent on, especially in the image and video domains. However, recent work has shown that these largely…

Computer Vision and Pattern Recognition · Computer Science 2018-11-30 Nathan Inkawhich , Matthew Inkawhich , Yiran Chen , Hai Li

Facially manipulated images and videos or DeepFakes can be used maliciously to fuel misinformation or defame individuals. Therefore, detecting DeepFakes is crucial to increase the credibility of social media platforms and other media…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Paarth Neekhara , Brian Dolhansky , Joanna Bitton , Cristian Canton Ferrer

Adversarial examples have revealed the vulnerability of deep learning models and raised serious concerns about information security. The transfer-based attack is a hot topic in black-box attacks that are practical to real-world scenarios…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Jian-Wei Li , Wen-Ze Shao