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This study investigates a counterintuitive phenomenon in adversarial machine learning: the potential for noise-based defenses to inadvertently aid evasion attacks in certain scenarios. While randomness is often employed as a defensive…

Cryptography and Security · Computer Science 2024-11-01 Steve Bakos , Pooria Madani , Heidar Davoudi

Due to the development of machine learning and speech processing, speech emotion recognition has been a popular research topic in recent years. However, the speech data cannot be protected when it is uploaded and processed on servers in the…

Sound · Computer Science 2022-03-10 Yi Chang , Sofiane Laridi , Zhao Ren , Gregory Palmer , Björn W. Schuller , Marco Fisichella

Robustness against word substitutions has a well-defined and widely acceptable form, i.e., using semantically similar words as substitutions, and thus it is considered as a fundamental stepping-stone towards broader robustness in natural…

Computation and Language · Computer Science 2021-07-29 Xinshuai Dong , Anh Tuan Luu , Rongrong Ji , Hong Liu

Recently, few certified defense methods have been developed to provably guarantee the robustness of a text classifier to adversarial synonym substitutions. However, all existing certified defense methods assume that the defenders are…

Computation and Language · Computer Science 2021-07-27 Jiehang Zeng , Xiaoqing Zheng , Jianhan Xu , Linyang Li , Liping Yuan , Xuanjing Huang

Recently deep neural networks (DNNs) have achieved significant success in real-world image super-resolution (SR). However, adversarial image samples with quasi-imperceptible noises could threaten deep learning SR models. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Jiutao Yue , Haofeng Li , Pengxu Wei , Guanbin Li , Liang Lin

The ubiquitous presence of machine learning systems in our lives necessitates research into their vulnerabilities and appropriate countermeasures. In particular, we investigate the effectiveness of adversarial attacks and defenses against…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-28 Piotr Żelasko , Sonal Joshi , Yiwen Shao , Jesus Villalba , Jan Trmal , Najim Dehak , Sanjeev Khudanpur

This paper presents a DNN bottleneck reinforcement scheme to alleviate the vulnerability of Deep Neural Networks (DNN) against adversarial attacks. Typical DNN classifiers encode the input image into a compressed latent representation more…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Wenqing Liu , Miaojing Shi , Teddy Furon , Li Li

Deep learning based systems are susceptible to adversarial attacks, where a small, imperceptible change at the input alters the model prediction. However, to date the majority of the approaches to detect these attacks have been designed for…

Computation and Language · Computer Science 2022-09-27 Vyas Raina , Mark Gales

The field of textual adversarial defenses has gained considerable attention in recent years due to the increasing vulnerability of natural language processing (NLP) models to adversarial attacks, which exploit subtle perturbations in input…

Computation and Language · Computer Science 2024-12-11 Wangli Yang , Jie Yang , Yi Guo , Johan Barthelemy

Over the past decade, there has been extensive research aimed at enhancing the robustness of neural networks, yet this problem remains vastly unsolved. Here, one major impediment has been the overestimation of the robustness of new defense…

Artificial Intelligence · Computer Science 2023-10-31 Leo Schwinn , David Dobre , Stephan Günnemann , Gauthier Gidel

Currently, natural language processing (NLP) models are wildly used in various scenarios. However, NLP models, like all deep models, are vulnerable to adversarially generated text. Numerous works have been working on mitigating the…

Computation and Language · Computer Science 2023-02-14 Lujia Shen , Xuhong Zhang , Shouling Ji , Yuwen Pu , Chunpeng Ge , Xing Yang , Yanghe Feng

In this paper we investigate speech denoising as a defense against adversarial attacks on automatic speech recognition (ASR) systems. Adversarial attacks attempt to force misclassification by adding small perturbations to the original…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-13 Anirudh Sreeram , Nicholas Mehlman , Raghuveer Peri , Dillon Knox , Shrikanth Narayanan

Recent work has demonstrated the vulnerability of modern text classifiers to universal adversarial attacks, which are input-agnostic sequences of words added to text processed by classifiers. Despite being successful, the word sequences…

Computation and Language · Computer Science 2021-04-09 Liwei Song , Xinwei Yu , Hsuan-Tung Peng , Karthik Narasimhan

Building an effective adversarial attacker and elaborating on countermeasures for adversarial attacks for natural language processing (NLP) have attracted a lot of research in recent years. However, most of the existing approaches focus on…

Computation and Language · Computer Science 2020-10-20 Wenjuan Han , Liwen Zhang , Yong Jiang , Kewei Tu

Over the past few years, various word-level textual attack approaches have been proposed to reveal the vulnerability of deep neural networks used in natural language processing. Typically, these approaches involve an important optimization…

Computation and Language · Computer Science 2021-11-23 Shengcai Liu , Ning Lu , Cheng Chen , Ke Tang

Deep Neural Networks have taken Natural Language Processing by storm. While this led to incredible improvements across many tasks, it also initiated a new research field, questioning the robustness of these neural networks by attacking…

Computation and Language · Computer Science 2021-09-16 Jens Hauser , Zhao Meng , Damián Pascual , Roger Wattenhofer

Deep neural networks are known to be vulnerable to adversarial attacks. This exposes them to potential exploits in security-sensitive applications and highlights their lack of robustness. This paper uses a variational auto-encoder (VAE) to…

Computer Vision and Pattern Recognition · Computer Science 2018-12-10 Yi Luo , Henry Pfister

Although pre-trained language models (PrLMs) have achieved significant success, recent studies demonstrate that PrLMs are vulnerable to adversarial attacks. By generating adversarial examples with slight perturbations on different levels…

Computation and Language · Computer Science 2022-08-23 Jiayi Wang , Rongzhou Bao , Zhuosheng Zhang , Hai Zhao

Robustness of huge Transformer-based models for natural language processing is an important issue due to their capabilities and wide adoption. One way to understand and improve robustness of these models is an exploration of an adversarial…

Neural ranking models (NRMs) have shown remarkable success in recent years, especially with pre-trained language models. However, deep neural models are notorious for their vulnerability to adversarial examples. Adversarial attacks may…

Information Retrieval · Computer Science 2022-06-09 Chen Wu , Ruqing Zhang , Jiafeng Guo , Maarten de Rijke , Yixing Fan , Xueqi Cheng