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Deep neural networks (DNNs) are found to be vulnerable against adversarial examples, which are carefully crafted inputs with a small magnitude of perturbation aiming to induce arbitrarily incorrect predictions. Recent studies show that…

Cryptography and Security · Computer Science 2019-07-12 Yulong Cao , Chaowei Xiao , Dawei Yang , Jing Fang , Ruigang Yang , Mingyan Liu , Bo Li

Deep neural networks (DNNs) are well known to be vulnerable to adversarial examples (AEs). In addition, AEs have adversarial transferability, which means AEs generated for a source model can fool another black-box model (target model) with…

Machine Learning · Computer Science 2022-09-20 Ryota Iijima , Miki Tanaka , Isao Echizen , Hitoshi Kiya

Unsupervised disentangled representation learning from the unlabelled audio data, and high fidelity audio generation have become two linchpins in the machine learning research fields. However, the representation learned from an unsupervised…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-20 Kazi Nazmul Haque , Rajib Rana , Björn W Schuller

With the evolution of self-supervised learning, the pre-training paradigm has emerged as a predominant solution within the deep learning landscape. Model providers furnish pre-trained encoders designed to function as versatile feature…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Ziqi Zhou , Minghui Li , Wei Liu , Shengshan Hu , Yechao Zhang , Wei Wan , Lulu Xue , Leo Yu Zhang , Dezhong Yao , Hai Jin

Deep latent variable models, trained using variational autoencoders or generative adversarial networks, are now a key technique for representation learning of continuous structures. However, applying similar methods to discrete structures,…

Machine Learning · Computer Science 2018-07-02 Jake Zhao , Yoon Kim , Kelly Zhang , Alexander M. Rush , Yann LeCun

Traditional adversarial examples are typically generated by adding perturbation noise to the input image within a small matrix norm. In practice, un-restricted adversarial attack has raised great concern and presented a new threat to the AI…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Wenzhao Xiang , Chang Liu , Shibao Zheng

Deep neural networks (DNNs) are notoriously vulnerable to adversarial attacks that place carefully crafted perturbations on normal examples to fool DNNs. To better understand such attacks, a characterization of the features carried by…

Machine Learning · Computer Science 2024-03-26 Rui Zheng , Yuhao Zhou , Zhiheng Xi , Tao Gui , Qi Zhang , Xuanjing Huang

Over the last few years, convolutional neural networks (CNNs) have proved to reach super-human performance in visual recognition tasks. However, CNNs can easily be fooled by adversarial examples, i.e., maliciously-crafted images that force…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Federico Nesti , Alessandro Biondi , Giorgio Buttazzo

In recent years, Deep Neural Networks (DNNs) have become increasingly integral to IoT-based environments, enabling realtime visual computing. However, the limited computational capacity of these devices has motivated the adoption of…

Cryptography and Security · Computer Science 2026-04-29 Shima Yousefi , Motahare Mounesan , Saptarshi Debroy

Unlearnable examples (UEs) seek to maximize testing error by making subtle modifications to training examples that are correctly labeled. Defenses against these poisoning attacks can be categorized based on whether specific interventions…

Cryptography and Security · Computer Science 2024-05-07 Yi Yu , Yufei Wang , Song Xia , Wenhan Yang , Shijian Lu , Yap-Peng Tan , Alex C. Kot

Neural networks are known to be vulnerable to adversarial examples: inputs that are close to natural inputs but classified incorrectly. In order to better understand the space of adversarial examples, we survey ten recent proposals that are…

Machine Learning · Computer Science 2017-11-02 Nicholas Carlini , David Wagner

Variational autoencoders (VAEs) have recently been shown to be vulnerable to adversarial attacks, wherein they are fooled into reconstructing a chosen target image. However, how to defend against such attacks remains an open problem. We…

Machine Learning · Statistics 2021-02-01 Matthew Willetts , Alexander Camuto , Tom Rainforth , Stephen Roberts , Chris Holmes

Deep neural network (DNN) models have proven to be vulnerable to adversarial digital and physical attacks. In this paper, we propose a novel attack- and dataset-agnostic and real-time detector for both types of adversarial inputs to…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Yiannis Kantaros , Taylor Carpenter , Kaustubh Sridhar , Yahan Yang , Insup Lee , James Weimer

With rapid progress and significant successes in a wide spectrum of applications, deep learning is being applied in many safety-critical environments. However, deep neural networks have been recently found vulnerable to well-designed input…

Machine Learning · Computer Science 2018-07-10 Xiaoyong Yuan , Pan He , Qile Zhu , Xiaolin Li

This paper introduces a hybrid attention and autoencoder (AE) model for unsupervised online anomaly detection in time series. The autoencoder captures local structural patterns in short embeddings, while the attention model learns long-term…

Machine Learning · Computer Science 2024-01-09 Seyed Amirhossein Najafi , Mohammad Hassan Asemani , Peyman Setoodeh

Modern applications of artificial neural networks have yielded remarkable performance gains in a wide range of tasks. However, recent studies have discovered that such modelling strategy is vulnerable to Adversarial Examples, i.e. examples…

Computer Vision and Pattern Recognition · Computer Science 2019-04-24 João Monteiro , Isabela Albuquerque , Zahid Akhtar , Tiago H. Falk

Deep neural network (DNN) is a popular model implemented in many systems to handle complex tasks such as image classification, object recognition, natural language processing etc. Consequently DNN structural vulnerabilities become part of…

Machine Learning · Computer Science 2021-07-02 Juan Shu , Bowei Xi , Charles Kamhoua

The study of adversarial vulnerabilities of deep neural networks (DNNs) has progressed rapidly. Existing attacks require either internal access (to the architecture, parameters, or training set of the victim model) or external access (to…

Computer Vision and Pattern Recognition · Computer Science 2020-12-07 Qizhang Li , Yiwen Guo , Hao Chen

From face recognition systems installed in phones to self-driving cars, the field of AI is witnessing rapid transformations and is being integrated into our everyday lives at an incredible pace. Any major failure in these system's…

Cryptography and Security · Computer Science 2020-12-14 Ayush Goel

Most deep latent factor models choose simple priors for simplicity, tractability or not knowing what prior to use. Recent studies show that the choice of the prior may have a profound effect on the expressiveness of the model,especially…

Machine Learning · Computer Science 2019-09-11 Hui-Po Wang , Wen-Hsiao Peng , Wei-Jan Ko