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While machine-generated texts (MGTs) offer great convenience, they also pose risks such as disinformation and phishing, highlighting the need for reliable detection. Metric-based methods, which extract statistically distinguishable features…

计算与语言 · 计算机科学 2026-02-10 Chenwang Wu , Yiu-ming Cheung , Shuhai Zhang , Bo Han , Defu Lian

Recent work shows that deep neural networks are vulnerable to adversarial examples. Much work studies adversarial example generation, while very little work focuses on more critical adversarial defense. Existing adversarial detection…

机器学习 · 计算机科学 2021-09-15 Bin Zhu , Zhaoquan Gu , Le Wang , Zhihong Tian

Deep neural networks are vulnerable to adversarial attacks, where a small perturbation to an input alters the model prediction. In many cases, malicious inputs intentionally crafted for one model can fool another model. In this paper, we…

机器学习 · 计算机科学 2021-09-23 Liping Yuan , Xiaoqing Zheng , Yi Zhou , Cho-Jui Hsieh , Kai-wei Chang

Network data packet anomaly detection faces numerous challenges, including exploring new anomaly supervision signals, researching weakly supervised anomaly detection, and improving model interpretability. This paper proposes NIDS-GPT, a…

密码学与安全 · 计算机科学 2024-12-09 Jie Huang

Deep neural network-based image classifications are vulnerable to adversarial perturbations. The image classifications can be easily fooled by adding artificial small and imperceptible perturbations to input images. As one of the most…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Jindong Gu , Hengshuang Zhao , Volker Tresp , Philip Torr

Pre-training data detection for LLMs is essential for addressing copyright concerns and mitigating benchmark contamination. Existing methods mainly focus on the likelihood-based statistical features or heuristic signals before and after…

计算与语言 · 计算机科学 2026-03-06 Ruiqi Zhang , Lingxiang Wang , Hainan Zhang , Zhiming Zheng , Yanyan Lan

Recent advancements in adversarial attacks have demonstrated their effectiveness in misleading speaker recognition models, making wrong predictions about speaker identities. On the other hand, defense techniques against speaker-adversarial…

音频与语音处理 · 电气工程与系统科学 2025-10-13 Liping Chen , Chenyang Guo , Kong Aik Lee , Zhen-Hua Ling , Wu Guo

Adversarial attacks are a type of attack on machine learning models where an attacker deliberately modifies the inputs to cause the model to make incorrect predictions. Adversarial attacks can have serious consequences, particularly in…

We investigated word recognition in a Visually Grounded Speech model. The model has been trained on pairs of images and spoken captions to create visually grounded embeddings which can be used for speech to image retrieval and vice versa.…

计算与语言 · 计算机科学 2020-06-02 Sebastiaan Scholten , Danny Merkx , Odette Scharenborg

Adversarial training is the most empirically successful approach in improving the robustness of deep neural networks for image classification.For text classification, however, existing synonym substitution based adversarial attacks are…

计算与语言 · 计算机科学 2020-12-17 Xiaosen Wang , Yichen Yang , Yihe Deng , Kun He

Deep Neural Networks, despite their great success in diverse domains, are provably sensitive to small perturbations on correctly classified examples and lead to erroneous predictions. Recently, it was proposed that this behavior can be…

机器学习 · 计算机科学 2020-09-29 Nan Xu , Oluwaseyi Feyisetan , Abhinav Aggarwal , Zekun Xu , Nathanael Teissier

The landscape of adversarial attacks against text classifiers continues to grow, with new attacks developed every year and many of them available in standard toolkits, such as TextAttack and OpenAttack. In response, there is a growing body…

Neural networks have demonstrated state-of-the-art performance in various machine learning fields. However, the introduction of malicious perturbations in input data, known as adversarial examples, has been shown to deceive neural network…

机器学习 · 计算机科学 2023-02-06 Dennis Y. Menn , Tzu-hsun Feng , Hung-yi Lee

In the era of large language models generating high quality texts, it is a necessity to develop methods for detection of machine-generated text to avoid harmful use or simply due to annotation purposes. It is, however, also important to…

计算与语言 · 计算机科学 2024-12-18 Michal Spiegel , Dominik Macko

As Speech Large Language Models (Speech LLMs) become increasingly integrated into voice-based applications, ensuring their robustness against manipulative or adversarial input becomes critical. Although prior work has studied adversarial…

计算与语言 · 计算机科学 2026-05-25 Jinyang Wu , Bin Zhu , Xiandong Zou , Qiquan Zhang , Xu Fang , Pan Zhou

Despite recent success on various tasks, deep learning techniques still perform poorly on adversarial examples with small perturbations. While optimization-based methods for adversarial attacks are well-explored in the field of computer…

计算与语言 · 计算机科学 2023-06-09 Lifan Yuan , Yichi Zhang , Yangyi Chen , Wei Wei

Textual adversarial attacks pose a serious security threat to Natural Language Processing (NLP) systems by introducing imperceptible perturbations that mislead deep learning models. While adversarial example detection offers a lightweight…

计算与语言 · 计算机科学 2026-03-16 He Zhu , Yanshu Li , Wen Liu , Haitian Yang

Vision-Language Models (VLMs), such as CLIP, have achieved impressive zero-shot recognition performance but remain highly susceptible to adversarial perturbations, posing significant risks in safety-critical scenarios. Previous…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Zhiwei Li , Yitian Pang , Weining Wang , Zhenan Sun , Qi Li

Deep learning models have achieved great success in many fields, yet they are vulnerable to adversarial examples. This paper follows a causal perspective to look into the adversarial vulnerability and proposes Causal Intervention by…

机器学习 · 计算机科学 2022-10-18 Haiteng Zhao , Chang Ma , Xinshuai Dong , Anh Tuan Luu , Zhi-Hong Deng , Hanwang Zhang

Existing language model safety evaluations focus on overt attacks and low-stakes tasks. In reality, an attacker can easily subvert existing safeguards by requesting help on small, benign-seeming tasks across many independent queries.…

密码学与安全 · 计算机科学 2026-04-22 Davis Brown , Mahdi Sabbaghi , Luze Sun , Alexander Robey , George J. Pappas , Eric Wong , Hamed Hassani