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It is well known that natural language models are vulnerable to adversarial attacks, which are mostly input-specific in nature. Recently, it has been shown that there also exist input-agnostic attacks in NLP models, called universal…

计算与语言 · 计算机科学 2021-09-28 Swapnil Parekh , Yaman Singla Kumar , Somesh Singh , Changyou Chen , Balaji Krishnamurthy , Rajiv Ratn Shah

Although temporal tagging is still dominated by rule-based systems, there have been recent attempts at neural temporal taggers. However, all of them focus on monolingual settings. In this paper, we explore multilingual methods for the…

计算与语言 · 计算机科学 2020-05-20 Lukas Lange , Anastasiia Iurshina , Heike Adel , Jannik Strötgen

Deep neural networks (DNNs) are vulnerable to adversarial examples, perturbations to correctly classified examples which can cause the model to misclassify. In the image domain, these perturbations are often virtually indistinguishable to…

计算与语言 · 计算机科学 2018-09-26 Moustafa Alzantot , Yash Sharma , Ahmed Elgohary , Bo-Jhang Ho , Mani Srivastava , Kai-Wei Chang

We present a new method for black-box adversarial attack. Unlike previous methods that combined transfer-based and scored-based methods by using the gradient or initialization of a surrogate white-box model, this new method tries to learn a…

机器学习 · 计算机科学 2020-01-07 Zhichao Huang , Tong Zhang

Language Models today provide a high accuracy across a large number of downstream tasks. However, they remain susceptible to adversarial attacks, particularly against those where the adversarial examples maintain considerable similarity to…

计算与语言 · 计算机科学 2023-07-25 Neel Bhandari , Pin-Yu Chen

Even though several methods have proposed to defend textual neural network (NN) models against black-box adversarial attacks, they often defend against a specific text perturbation strategy and/or require re-training the models from…

机器学习 · 计算机科学 2022-03-17 Thai Le , Noseong Park , Dongwon Lee

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

Detecting hate speech and offensive language is essential for maintaining a safe and respectful digital environment. This study examines the limitations of state-of-the-art large language models (LLMs) in identifying offensive content…

计算与语言 · 计算机科学 2024-06-19 Yunze Xiao , Yujia Hu , Kenny Tsu Wei Choo , Roy Ka-wei Lee

Manual annotation of ICD-9 codes is a time consuming and error-prone process. Deep learning based systems tackling the problem of automated ICD-9 coding have achieved competitive performance. Given the increased proliferation of electronic…

机器学习 · 计算机科学 2020-09-30 Sharan Raja , Rudraksh Tuwani

Deep neural networks are vulnerable to adversarial examples, i.e., carefully-perturbed inputs aimed to mislead classification. This work proposes a detection method based on combining non-linear dimensionality reduction and density…

机器学习 · 计算机科学 2019-05-02 Francesco Crecchi , Davide Bacciu , Battista Biggio

Generative Adversarial Networks (GANs) for text generation have recently received many criticisms, as they perform worse than their MLE counterparts. We suspect previous text GANs' inferior performance is due to the lack of a reliable…

计算与语言 · 计算机科学 2021-04-28 Qingyang Wu , Lei Li , Zhou Yu

Several years of research have shown that machine-learning systems are vulnerable to adversarial examples, both in theory and in practice. Until now, such attacks have primarily targeted visual models, exploiting the gap between human and…

计算与语言 · 计算机科学 2021-12-14 Nicholas Boucher , Ilia Shumailov , Ross Anderson , Nicolas Papernot

Pre-trained language models (PLMs) have been widely used to underpin various downstream tasks. However, the adversarial attack task has found that PLMs are vulnerable to small perturbations. Mainstream methods adopt a detached two-stage…

计算与语言 · 计算机科学 2023-05-30 Xuanjie Fang , Sijie Cheng , Yang Liu , Wei Wang

Adversarial attacks have been shown to be highly effective at degrading the performance of deep neural networks (DNNs). The most prominent defense is adversarial training, a method for learning a robust model. Nevertheless, adversarial…

计算机视觉与模式识别 · 计算机科学 2021-09-07 Uriya Pesso , Koby Bibas , Meir Feder

Adversarial attacks against machine learning models have threatened various real-world applications such as spam filtering and sentiment analysis. In this paper, we propose a novel framework, learning to DIScriminate Perturbations (DISP),…

计算与语言 · 计算机科学 2019-09-10 Yichao Zhou , Jyun-Yu Jiang , Kai-Wei Chang , Wei Wang

Deep learning-based natural language processing (NLP) models, particularly pre-trained language models (PLMs), have been revealed to be vulnerable to adversarial attacks. However, the adversarial examples generated by many mainstream…

计算与语言 · 计算机科学 2023-11-21 Zimu Wang , Wei Wang , Qi Chen , Qiufeng Wang , Anh Nguyen

Note that this paper is superceded by "Black-Box Adversarial Attacks with Limited Queries and Information." Current neural network-based image classifiers are susceptible to adversarial examples, even in the black-box setting, where the…

计算机视觉与模式识别 · 计算机科学 2018-04-09 Andrew Ilyas , Logan Engstrom , Anish Athalye , Jessy Lin

Adversarial attacks involve adding, small, often imperceptible, perturbations to inputs with the goal of getting a machine learning model to misclassifying them. While many different adversarial attack strategies have been proposed on image…

计算机视觉与模式识别 · 计算机科学 2018-06-01 Avishek Joey Bose , Parham Aarabi

Recent studies show that text-to-image (T2I) models are vulnerable to adversarial attacks, especially with noun perturbations in text prompts. In this study, we investigate the impact of adversarial attacks on different POS tags within text…

计算与语言 · 计算机科学 2024-09-25 G M Shahariar , Jia Chen , Jiachen Li , Yue Dong

Deep Neural Networks are vulnerable to adversarial examples, i.e., carefully crafted input samples that can cause models to make incorrect predictions with high confidence. To mitigate these vulnerabilities, adversarial training and…

计算机视觉与模式识别 · 计算机科学 2025-04-21 Francesco Villani , Igor Maljkovic , Dario Lazzaro , Angelo Sotgiu , Antonio Emanuele Cinà , Fabio Roli