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Adversarial training (AT) is considered to be one of the most reliable defenses against adversarial attacks. However, models trained with AT sacrifice standard accuracy and do not generalize well to novel attacks. Recent works show…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Chun Pong Lau , Jiang Liu , Hossein Souri , Wei-An Lin , Soheil Feizi , Rama Chellappa

Many adversarial defense methods have been proposed to enhance the adversarial robustness of natural language processing models. However, most of them introduce additional pre-set linguistic knowledge and assume that the synonym candidates…

Computation and Language · Computer Science 2024-02-28 Yichen Yang , Xin Liu , Kun He

Human Activity Recognition (HAR) is one of the fundamental building blocks of human assistive devices like orthoses and exoskeletons. There are different approaches to HAR depending on the application. Numerous studies have been focused on…

Human-Computer Interaction · Computer Science 2024-03-08 Farhad Nazari , Darius Nahavandi , Navid Mohajer , Abbas Khosravi

Many deep learning models are vulnerable to the adversarial attack, i.e., imperceptible but intentionally-designed perturbations to the input can cause incorrect output of the networks. In this paper, using information geometry, we provide…

Machine Learning · Computer Science 2019-02-12 Chenxiao Zhao , P. Thomas Fletcher , Mixue Yu , Yaxin Peng , Guixu Zhang , Chaomin Shen

Human Activity Recognition (HAR) is considered a valuable research topic in the last few decades. Different types of machine learning models are used for this purpose, and this is a part of analyzing human behavior through machines. It is…

Machine Learning · Computer Science 2021-03-31 Jakaria Rabbi , Md. Tahmid Hasan Fuad , Md. Abdul Awal

Human Activity Recognition (HAR) on resource-constrained wearable devices demands inference models that harmonize accuracy with computational efficiency. This paper introduces TinierHAR, an ultra-lightweight deep learning architecture that…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Sizhen Bian , Mengxi Liu , Vitor Fortes Rey , Daniel Geissler , Paul Lukowicz

Security-sensitive applications that rely on Deep Neural Networks (DNNs) are vulnerable to small perturbations that are crafted to generate Adversarial Examples(AEs). The AEs are imperceptible to humans and cause DNN to misclassify them.…

Cryptography and Security · Computer Science 2021-06-22 Ahmed Aldahdooh , Wassim Hamidouche , Olivier Déforges

Human Activity Recognition (HAR) is one of the key applications of health monitoring that requires continuous use of wearable devices to track daily activities. This paper proposes an Adaptive CNN for energy-efficient HAR (AHAR) suitable…

Machine Learning · Computer Science 2022-01-04 Nafiul Rashid , Berken Utku Demirel , Mohammad Abdullah Al Faruque

In recent years, the security issues of artificial intelligence have become increasingly prominent due to the rapid development of deep learning research and applications. Backdoor attack is an attack targeting the vulnerability of deep…

Cryptography and Security · Computer Science 2023-12-14 Peixin Zhang , Jun Sun , Mingtian Tan , Xinyu Wang

Human Activity Recognition (HAR) simply refers to the capacity of a machine to perceive human actions. HAR is a prominent application of advanced Machine Learning and Artificial Intelligence techniques that utilize computer vision to…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Niloy Sikder , Md. Sanaullah Chowdhury , Abu Shamim Mohammad Arif , Abdullah-Al Nahid

Adversarial training (AT) aims to improve the robustness of deep learning models by mixing clean data and adversarial examples (AEs). Most existing AT approaches can be grouped into restricted and unrestricted approaches. Restricted AT…

Machine Learning · Computer Science 2020-04-14 Haidong Xie , Xueshuang Xiang , Naijin Liu , Bin Dong

The increased need for unattended authentication in multiple scenarios has motivated a wide deployment of biometric systems in the last few years. This has in turn led to the disclosure of security concerns specifically related to biometric…

Computer Vision and Pattern Recognition · Computer Science 2019-09-13 Ruben Tolosana , Marta Gomez-Barrero , Christoph Busch , Javier Ortega-Garcia

Adversarial training serves as one of the most popular and effective methods to defend against adversarial perturbations. However, most defense mechanisms only consider a single type of perturbation while various attack methods might be…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Huihui Gong , Minjing Dong , Siqi Ma , Seyit Camtepe , Surya Nepal , Chang Xu

This paper presents RADAR-Robust Adversarial Detection via Adversarial Retraining-an approach designed to enhance the robustness of adversarial detectors against adaptive attacks, while maintaining classifier performance. An adaptive attack…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Raz Lapid , Almog Dubin , Moshe Sipper

Given their substantial success in addressing a wide range of computer vision challenges, Convolutional Neural Networks (CNNs) are increasingly being used in smart home applications, with many of these applications relying on the automatic…

Computer Vision and Pattern Recognition · Computer Science 2021-01-27 Utku Ozbulak , Baptist Vandersmissen , Azarakhsh Jalalvand , Ivo Couckuyt , Arnout Van Messem , Wesley De Neve

Human Activity Recognition (HAR) is essential in ubiquitous computing, with far-reaching real-world applications. While recent SOTA HAR research has demonstrated impressive performance, some key aspects remain under-explored. Firstly, HAR…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Wen Ge , Guanyi Mou , Emmanuel O. Agu , Kyumin Lee

The primary objective of human activity recognition (HAR) is to infer ongoing human actions from sensor data, a task that finds broad applications in health monitoring, safety protection, and sports analysis. Despite proliferating research,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Hang Xiao , Ying Yu , Jiarui Li , Zhifan Yang , Haotian Tang , Hanyu Liu , Chao Li

Automatic speech recognition (ASR) models are prevalent, particularly in applications for voice navigation and voice control of domestic appliances. The computational core of ASRs are deep neural networks (DNNs) that have been shown to be…

Sound · Computer Science 2022-04-13 Xiaoliang Wu , Ajitha Rajan

Due to the increasing sophistication of web attacks, Web Application Firewalls (WAFs) have to be tested and updated regularly to resist the relentless flow of web attacks. In practice, using a brute-force attack to discover vulnerabilities…

Cryptography and Security · Computer Science 2023-12-14 Mohammadhossein Amouei , Mohsen Rezvani , Mansoor Fateh

One major factor impeding more widespread adoption of deep neural networks (DNNs) is their lack of robustness, which is essential for safety-critical applications such as autonomous driving. This has motivated much recent work on…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Abdullah Hamdi , Matthias Müller , Bernard Ghanem