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Electrocardiogram (ECG) acquisition requires an automated system and analysis pipeline for understanding specific rhythm irregularities. Deep neural networks have become a popular technique for tracing ECG signals, outperforming human…

Graph anomaly detection (GAD) aims to identify nodes from a graph that are significantly different from normal patterns. Most previous studies are model-driven, focusing on enhancing the detection effect by improving the model structure.…

Machine Learning · Computer Science 2025-01-27 Yitong Hao , Enbo He , Yue Zhang , Guisheng Yin

Deep reinforcement learning has made significant progress in the field of continuous control, such as physical control and autonomous driving. However, it is challenging for a reinforcement model to learn a policy for each task sequentially…

Machine Learning · Computer Science 2019-06-24 Fengda Zhu , Xiaojun Chang , Runhao Zeng , Mingkui Tan

Continual learning (CL) empowers AI systems to progressively acquire knowledge from non-stationary data streams. However, catastrophic forgetting remains a critical challenge. In this work, we identify attention drift in Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Yue Lu , Xiangyu Zhou , Shizhou Zhang , Yinghui Xing , Guoqiang Liang , Wencong Zhang

Deep neural networks have made tremendous progress in 3D point-cloud recognition. Recent works have shown that these 3D recognition networks are also vulnerable to adversarial samples produced from various attack methods, including…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Hang Zhou , Dongdong Chen , Jing Liao , Weiming Zhang , Kejiang Chen , Xiaoyi Dong , Kunlin Liu , Gang Hua , Nenghai Yu

Conditional Generative Adversarial Networks (GANs) for cross-domain image-to-image translation have made much progress recently. Depending on the task complexity, thousands to millions of labeled image pairs are needed to train a…

Computer Vision and Pattern Recognition · Computer Science 2018-10-12 Zili Yi , Hao Zhang , Ping Tan , Minglun Gong

Generative adversarial network (GAN) still exists some problems in dealing with speech enhancement (SE) task. Some GAN-based systems adopt the same structure from Pixel-to-Pixel directly without special optimization. The importance of the…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-09 Huixiang Huang , Renjie Wu , Jingbiao Huang , Jucai Lin , Jun Yin

The control of nonlinear systems with unknown dynamics has been a significant field of research for many years. This paper presents a novel data-driven optimal adaptive control structure with less control effort and faster adaptation than…

Systems and Control · Electrical Eng. & Systems 2022-06-28 Mohammad Mahmoudi , Nasser Sadati

Online Continual Learning (CL) solves the problem of learning the ever-emerging new classification tasks from a continuous data stream. Unlike its offline counterpart, in online CL, the training data can only be seen once. Most existing…

Machine Learning · Computer Science 2024-04-02 Maorong Wang , Nicolas Michel , Ling Xiao , Toshihiko Yamasaki

Most existing text-to-image generation methods adopt a multi-stage modular architecture which has three significant problems: 1) Training multiple networks increases the run time and affects the convergence and stability of the generative…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Zhenxing Zhang , Lambert Schomaker

Catastrophic forgetting is the notorious vulnerability of neural networks to the change of the data distribution while learning. This phenomenon has long been considered a major obstacle for allowing the use of learning agents in realistic…

Machine Learning · Statistics 2019-02-13 Chen Zeno , Itay Golan , Elad Hoffer , Daniel Soudry

Graph anomaly detection aims to identify unusual patterns in graph-based data, with wide applications in fields such as web security and financial fraud detection. Existing methods typically rely on contrastive learning, assuming that a…

Machine Learning · Computer Science 2025-05-26 Di Jin , Jingyi Cao , Xiaobao Wang , Bingdao Feng , Dongxiao He , Longbiao Wang , Jianwu Dang

The increasing complexity of IoT edge networks presents significant challenges for anomaly detection, particularly in identifying sophisticated Denial-of-Service (DoS) attacks and zero-day exploits under highly dynamic and imbalanced…

Machine Learning · Computer Science 2025-12-02 Henry Onyeka , Emmanuel Samson , Liang Hong , Tariqul Islam , Imtiaz Ahmed , Kamrul Hasan

Continual learning (CL) promises to allow neural networks to learn from continuous streams of inputs, instead of IID (independent and identically distributed) sampling, which requires random access to a full dataset. This would allow for…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Shivani Mall , Joao F. Henriques

Adversarial patch attacks pose a significant threat to the practical deployment of deep learning systems. However, existing research primarily focuses on image pre-processing defenses, which often result in reduced classification accuracy…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Nandish Chattopadhyay , Amira Guesmi , Muhammad Shafique

Recent works have demonstrated the superiority of supervised Convolutional Neural Networks (CNNs) in learning hierarchical representations from time series data for successful classification. These methods require sufficiently large labeled…

Machine Learning · Computer Science 2023-09-12 Fanling Huang , Yangdong Deng

Continual Learning (CL) is a powerful tool that enables agents to learn a sequence of tasks, accumulating knowledge learned in the past and using it for problem-solving or future task learning. However, existing CL methods often assume that…

Machine Learning · Computer Science 2025-06-09 Chaofan Pan , Jiafen Liu , Yanhua Li , Linbo Xiong , Fan Min , Wei Wei , Xin Yang

Deep neural networks have recently achieved notable progress in 3D point cloud recognition, yet their vulnerability to adversarial perturbations poses critical security challenges in practical deployments. Conventional defense mechanisms…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Yuanmin Huang , Wenxuan Li , Mi Zhang , Xiaohan Zhang , Xiaoyu You , Min Yang

Anomaly detection techniques enable effective anomaly detection and diagnosis in multi-variate time series data, which are of major significance for today's industrial applications. However, establishing an anomaly detection system that can…

Machine Learning · Computer Science 2024-05-02 Lingrui Yu

In this paper, we focus on preserving differential privacy (DP) in continual learning (CL), in which we train ML models to learn a sequence of new tasks while memorizing previous tasks. We first introduce a notion of continual adjacent…

Machine Learning · Computer Science 2021-10-12 Pradnya Desai , Phung Lai , NhatHai Phan , My T. Thai