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The challenge of WAD (web attack detection) is growing as hackers continuously refine their methods to evade traditional detection. Deep learning models excel in handling complex unknown attacks due to their strong generalization and…

机器学习 · 计算机科学 2024-06-19 Lijia Shi , Shihao Dong

Features, logits, and labels are the three primary data when a sample passes through a deep neural network. Feature perturbation and label perturbation receive increasing attention in recent years. They have been proven to be useful in…

机器学习 · 计算机科学 2022-09-27 Mengyang Li , Fengguang Su , Ou Wu , Ji Zhang

Outsourced deep neural networks have been demonstrated to suffer from patch-based trojan attacks, in which an adversary poisons the training sets to inject a backdoor in the obtained model so that regular inputs can be still labeled…

密码学与安全 · 计算机科学 2022-05-17 Ying He , Zhili Shen , Chang Xia , Jingyu Hua , Wei Tong , Sheng Zhong

We present an algorithm for computing class-specific universal adversarial perturbations for deep neural networks. Such perturbations can induce misclassification in a large fraction of images of a specific class. Unlike previous methods…

机器学习 · 计算机科学 2019-12-03 Tejus Gupta , Abhishek Sinha , Nupur Kumari , Mayank Singh , Balaji Krishnamurthy

We study an important and challenging task of attacking natural language processing models in a hard label black box setting. We propose a decision-based attack strategy that crafts high quality adversarial examples on text classification…

计算与语言 · 计算机科学 2021-04-30 Rishabh Maheshwary , Saket Maheshwary , Vikram Pudi

State-of-the-art, high capacity deep neural networks not only require large amounts of labelled training data, they are also highly susceptible to label errors in this data, typically resulting in large efforts and costs and therefore…

机器学习 · 计算机科学 2020-07-20 Christian Haase-Schütz , Rainer Stal , Heinz Hertlein , Bernhard Sick

The drastic increase of data quantity often brings the severe decrease of data quality, such as incorrect label annotations, which poses a great challenge for robustly training Deep Neural Networks (DNNs). Existing learning \mbox{methods}…

机器学习 · 计算机科学 2022-03-18 Qizhou Wang , Bo Han , Tongliang Liu , Gang Niu , Jian Yang , Chen Gong

Federated learning (FL) is vulnerable to backdoor attacks, yet most existing methods are limited by fixed-pattern or single-target triggers, making them inflexible and easier to detect. We propose FLAT (FL Arbitrary-Target Attack), a novel…

机器学习 · 计算机科学 2025-08-07 Tuan Nguyen , Khoa D Doan , Kok-Seng Wong

Deep learning based models are vulnerable to adversarial attacks. These attacks can be much more harmful in case of targeted attacks, where an attacker tries not only to fool the deep learning model, but also to misguide the model to…

机器学习 · 计算机科学 2021-01-15 Pradeep Rathore , Arghya Basak , Sri Harsha Nistala , Venkataramana Runkana

An online template attack (OTA) is a powerful technique previously used to attack elliptic curve scalar multiplication algorithms. This attack has only been analyzed in the realm of power consumption and EM side channels, where the signals…

密码学与安全 · 计算机科学 2021-07-13 Alejandro Cabrera Aldaya , Billy Bob Brumley

Large language models are increasingly used for text classification tasks such as sentiment analysis, yet their reliance on natural language prompts exposes them to prompt injection attacks. In particular, class-directive injections exploit…

计算与语言 · 计算机科学 2026-02-05 Yanxi Li , Ruocheng Shan

In this work, we propose a novel complementary learning approach to enhance test-time adaptation (TTA), which has been proven to exhibit good performance on testing data with distribution shifts such as corruptions. In test-time adaptation…

计算机视觉与模式识别 · 计算机科学 2024-05-01 Jiayi Han , Longbin Zeng , Liang Du , Weiyang Ding , Jianfeng Feng

Machine Learning often involves various imprecise labels, leading to diverse weakly supervised settings. While recent methods aim for universal handling, they usually suffer from complex manual pre-work, ignore the relationships between…

机器学习 · 计算机科学 2026-03-03 Ziquan Wang , Haobo Wang , Ke Chen , Lei Feng , Gang Chen

Currently, sample-specific backdoor attacks (SSBAs) are the most advanced and malicious methods since they can easily circumvent most of the current backdoor defenses. In this paper, we reveal that SSBAs are not sufficiently stealthy due to…

密码学与安全 · 计算机科学 2025-03-17 Mingyan Zhu , Yiming Li , Junfeng Guo , Tao Wei , Shu-Tao Xia , Zhan Qin

By injecting a small number of poisoned samples into the training set, backdoor attacks aim to make the victim model produce designed outputs on any input injected with pre-designed backdoors. In order to achieve a high attack success rate…

密码学与安全 · 计算机科学 2024-07-23 Minlong Peng , Zidi Xiong , Quang H. Nguyen , Mingming Sun , Khoa D. Doan , Ping Li

AI-generated text (AIGT) detection evasion aims to reduce the detection probability of AIGT, helping to identify weaknesses in detectors and enhance their effectiveness and reliability in practical applications. Although existing evasion…

密码学与安全 · 计算机科学 2025-08-25 Yinghan Zhou , Juan Wen , Wanli Peng , Zhengxian Wu , Ziwei Zhang , Yiming Xue

Backdoor attacks in machine learning have drawn significant attention for their potential to compromise models stealthily, yet most research has focused on homogeneous data such as images. In this work, we propose a novel backdoor attack on…

机器学习 · 计算机科学 2025-11-11 Behrad Tajalli , Stefanos Koffas , Stjepan Picek

The performance of machine learning models depends on the quality of the underlying data. Malicious actors can attack the model by poisoning the training data. Current detectors are tied to either specific data types, models, or attacks,…

密码学与安全 · 计算机科学 2023-10-26 Xinglong Chang , Katharina Dost , Gillian Dobbie , Jörg Wicker

Deep speech classification tasks, including keyword spotting and speaker verification, are vital in speech-based human-computer interaction. Recently, the security of these technologies has been revealed to be susceptible to backdoor…

声音 · 计算机科学 2025-06-11 Wenhan Yao , Fen Xiao , Xiarun Chen , Jia Liu , YongQiang He , Weiping Wen

Recently, deep learning (DL) approaches to vulnerability detection have gained significant traction. These methods demonstrate promising results, often surpassing traditional static code analysis tools in effectiveness. In this study, we…

机器学习 · 计算机科学 2024-10-07 Pavel Snopov , Andrey Nikolaevich Golubinskiy