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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…

Computation and Language · Computer Science 2022-01-24 Zhouhang Xie , Jonathan Brophy , Adam Noack , Wencong You , Kalyani Asthana , Carter Perkins , Sabrina Reis , Sameer Singh , Daniel Lowd

Adversarial classification is the task of performing robust classification in the presence of a strategic attacker. Originating from information hiding and multimedia forensics, adversarial classification recently received a lot of…

Cryptography and Security · Computer Science 2018-03-12 Pascal Schöttle , Alexander Schlögl , Cecilia Pasquini , Rainer Böhme

The vulnerability of deep neural networks to adversarial attacks has been widely demonstrated (e.g., adversarial example attacks). Traditional attacks perform unstructured pixel-wise perturbation to fool the classifier. An alternative…

Machine Learning · Computer Science 2022-05-23 Shuo Wang , Surya Nepal , Carsten Rudolph , Marthie Grobler , Shangyu Chen , Tianle Chen

Deep neural networks have been shown to exhibit an intriguing vulnerability to adversarial input images corrupted with imperceptible perturbations. However, the majority of adversarial attacks assume global, fine-grained control over the…

Computer Vision and Pattern Recognition · Computer Science 2019-08-19 Ameya Joshi , Amitangshu Mukherjee , Soumik Sarkar , Chinmay Hegde

This paper addresses the problem of manipulating images using natural language description. Our task aims to semantically modify visual attributes of an object in an image according to the text describing the new visual appearance. Although…

Computer Vision and Pattern Recognition · Computer Science 2018-11-29 Seonghyeon Nam , Yunji Kim , Seon Joo Kim

The Generative Adversarial Network (GAN) has achieved great success in generating realistic (real-valued) synthetic data. However, convergence issues and difficulties dealing with discrete data hinder the applicability of GAN to text. We…

Machine Learning · Statistics 2017-11-21 Yizhe Zhang , Zhe Gan , Kai Fan , Zhi Chen , Ricardo Henao , Dinghan Shen , Lawrence Carin

In this paper, we focus on generating realistic images from text descriptions. Current methods first generate an initial image with rough shape and color, and then refine the initial image to a high-resolution one. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2019-04-03 Minfeng Zhu , Pingbo Pan , Wei Chen , Yi Yang

Adversarial examples have been demonstrated to threaten many computer vision tasks including object detection. However, the existing attacking methods for object detection have two limitations: poor transferability, which denotes that the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Xingxing Wei , Siyuan Liang , Ning Chen , Xiaochun Cao

Deep learning models are known to be vulnerable to adversarial examples crafted by adding human-imperceptible perturbations on benign images. Many existing adversarial attack methods have achieved great white-box attack performance, but…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Xiaosen Wang , Jiadong Lin , Han Hu , Jingdong Wang , Kun He

Matching information across image and text modalities is a fundamental challenge for many applications that involve both vision and natural language processing. The objective is to find efficient similarity metrics to compare the similarity…

Computer Vision and Pattern Recognition · Computer Science 2020-10-29 Li Ren , Kai Li , LiQiang Wang , Kien Hua

Attackers create adversarial text to deceive both human perception and the current AI systems to perform malicious purposes such as spam product reviews and fake political posts. We investigate the difference between the adversarial and the…

Computation and Language · Computer Science 2019-12-20 Hoang-Quoc Nguyen-Son , Tran Phuong Thao , Seira Hidano , Shinsaku Kiyomoto

Convolutional neural networks have outperformed humans in image recognition tasks, but they remain vulnerable to attacks from adversarial examples. Since these data are crafted by adding imperceptible noise to normal images, their existence…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Heng Yin , Hengwei Zhang , Jindong Wang , Ruiyu Dou

Recently, it has been shown that, in spite of the significant performance of deep neural networks in different fields, those are vulnerable to adversarial examples. In this paper, we propose a gradient-based adversarial attack against…

Computation and Language · Computer Science 2022-03-14 Sahar Sadrizadeh , Ljiljana Dolamic , Pascal Frossard

Recently, many studies have demonstrated deep neural network (DNN) classifiers can be fooled by the adversarial example, which is crafted via introducing some perturbations into an original sample. Accordingly, some powerful defense…

Cryptography and Security · Computer Science 2019-01-10 Bin Liang , Hongcheng Li , Miaoqiang Su , Xirong Li , Wenchang Shi , Xiaofeng Wang

Deep neural networks are vulnerable to adversarial examples, which are crafted by adding human-imperceptible perturbations to original images. Most existing adversarial attack methods achieve nearly 100% attack success rates under the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Guoqiu Wang , Huanqian Yan , Ying Guo , Xingxing Wei

Adversarial examples are helpful for analyzing and improving the robustness of text classifiers. Generating high-quality adversarial examples is a challenging task as it requires generating fluent adversarial sentences that are semantically…

Computation and Language · Computer Science 2022-10-21 Lei Xu , Alfredo Cuesta-Infante , Laure Berti-Equille , Kalyan Veeramachaneni

This paper introduces a novel adversarial attack method targeting text classification models, termed the Modified Word Saliency-based Adversarial At-tack (MWSAA). The technique builds upon the concept of word saliency to strategically…

Computation and Language · Computer Science 2025-05-13 Hetvi Waghela , Sneha Rakshit , Jaydip Sen

We propose a novel method for creating adversarial examples. Instead of perturbing pixels, we use an encoder-decoder representation of the input image and perturb intermediate layers in the decoder. This changes the high-level features…

Computer Vision and Pattern Recognition · Computer Science 2021-10-15 Vojtěch Čermák , Lukáš Adam

Compared with traditional machine learning models, deep neural networks perform better, especially in image classification tasks. However, they are vulnerable to adversarial examples. Adding small perturbations on examples causes a…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Zifei Zhang , Kai Qiao , Lingyun Jiang , Linyuan Wang , Bin Yan

We describe a new approach that improves the training of generative adversarial nets (GANs) for synthesizing diverse images from a text input. Our approach is based on the conditional version of GANs and expands on previous work leveraging…

Computer Vision and Pattern Recognition · Computer Science 2019-02-07 Miriam Cha , Youngjune L. Gwon , H. T. Kung