English
Related papers

Related papers: Self-supervised Anomaly Detection Pretraining Enha…

200 papers

Arrhythmia is just one of the many cardiovascular illnesses that have been extensively studied throughout the years. Using multi-lead ECG data, this research describes a deep learning (DL) pipeline technique based on convolutional neural…

Signal Processing · Electrical Eng. & Systems 2024-06-13 Aryan Odugoudar , Jaskaran Singh Walia

Traditional deep learning models often lack annotated data, especially in cross-domain applications such as anomaly detection, which is critical for early disease diagnosis in medicine and defect detection in industry. To address this…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Wahyu Rahmaniar , Kenji Suzuki

Anomaly detection is the task of identifying examples that do not behave as expected. Because anomalies are rare and unexpected events, collecting real anomalous examples is often challenging in several applications. In addition, learning…

Machine Learning · Computer Science 2024-05-24 Lorenzo Perini , Maja Rudolph , Sabrina Schmedding , Chen Qiu

Except for a few specific types, cardiac arrhythmias are not immediately life-threatening. However, if not treated appropriately, they can cause serious complications. In particular, atrial fibrillation, which is characterized by fast and…

Machine Learning · Computer Science 2020-10-08 Jérôme Van Zaen , Ricard Delgado-Gonzalo , Damien Ferrario Mathieu Lemay

Electrocardiography (ECG) signals are frequently degraded by noise, limiting their clinical reliability in both conventional and wearable settings. Existing methods for addressing ECG noise, relying on artifact classification or denoising,…

Signal Processing · Electrical Eng. & Systems 2025-07-23 Tae-Seong Han , Jae-Wook Heo , Hakseung Kim , Cheol-Hui Lee , Hyub Huh , Eue-Keun Choi , Hye Jin Kim , Dong-Joo Kim

Evaluating canine electrocardiograms (ECGs) is challenging due to noise that can obscure clinically relevant cardiac electrical activity. Common sources of interference include respiration, muscle activity, poor lead contact, and external…

Machine Learning · Computer Science 2026-05-19 Jeff Breeding-Allison , Emil Walleser

Detecting anomalies in large complex systems is a critical and challenging task. The difficulties arise from several aspects. First, collecting ground truth labels or prior knowledge for anomalies is hard in real-world systems, which often…

Machine Learning · Computer Science 2021-06-01 Huiling Qin , Xianyuan Zhan , Yu Zheng

The complexity of the patterns associated with Atrial Fibrillation (AF) and the high level of noise affecting these patterns have significantly limited the current signal processing and shallow machine learning approaches to get accurate AF…

Quantitative Methods · Quantitative Biology 2019-02-18 Sajad Mousavi , Fatemeh Afghah , Abolfazl Razi , U. Rajendra Acharya

This paper presents an innovative and generic deep learning approach to monitor heart conditions from ECG signals.We focus our attention on both the detection and classification of abnormal heartbeats, known as arrhythmia. We strongly…

Machine Learning · Computer Science 2019-06-14 Meryll Dindin , Yuhei Umeda , Frederic Chazal

Recent advancements in artificial intelligence (AI) have revolutionized cardiovascular medicine, particularly through integration with computed tomography (CT), magnetic resonance imaging (MRI), electrocardiography (ECG) and ultrasound…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Yuanlin Mo , Haishan Huang , Bocheng Liang , Weibo Ma

Medical anomaly detection aims to identify abnormal findings using only normal training data, playing a crucial role in health screening and recognizing rare diseases. Reconstruction-based methods, particularly those utilizing autoencoders…

Machine Learning · Computer Science 2024-07-10 Yu Cai , Hao Chen , Kwang-Ting Cheng

Advances in self-supervised learning (SSL) have shown that self-supervised pretraining on medical imaging data can provide a strong initialization for downstream supervised classification and segmentation. Given the difficulty of obtaining…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Gregory Holste , Evangelos K. Oikonomou , Bobak J. Mortazavi , Zhangyang Wang , Rohan Khera

The diagnostic value of electrocardiogram (ECG) lies in its dynamic characteristics, ranging from rhythm fluctuations to subtle waveform deformations that evolve across time and frequency domains. However, supervised ECG models tend to…

Signal Processing · Electrical Eng. & Systems 2025-07-29 He-Yang Xu , Hongxiang Gao , Yuwen Li , Xiu-Shen Wei , Chengyu Liu

Evaluating canine electrocardiograms (ECG) require skilled veterinarians, but current availability of veterinary cardiologists for ECG interpretation and diagnostic support is limited. Developing tools for automated assessment of ECG…

Mobile electrocardiogram (ECG) recording technologies represent a promising tool to fight the ongoing epidemic of cardiovascular diseases, which are responsible for more deaths globally than any other cause. While the ability to monitor…

Signal Processing · Electrical Eng. & Systems 2018-10-10 Jennifer N. John , Conner Galloway , Alexander Valys

Anomaly detection is a prominent data preprocessing step in learning applications for correction and/or removal of faulty data. Automating this data type with the use of autoencoders could increase the quality of the dataset by isolating…

Machine Learning · Computer Science 2020-04-10 Benjamin Smith , Kevin Cant , Gloria Wang

Cardiotocography (CTG) is a low-cost, non-invasive fetal health assessment technique used globally, especially in underdeveloped countries. However, it is currently mainly used to identify the fetus's current status (e.g., fetal acidosis or…

Signal Processing · Electrical Eng. & Systems 2025-09-19 Jinshuai Gu , Zenghui Lin , Jingying Ma , Jingyu Wang , Linyan Zhang , Rui Bai , Zelin Tu , Youyou Jiang , Donglin Xie , Yuxi Zhou , Guoli Liu , Shenda Hong

Electrocardiogram(ECG) is commonly used to detect cardiac irregularities such as atrial fibrillation, bradycardia, and other irregular complexes. While previous studies have achieved great accomplishment classifying these irregularities…

Machine Learning · Computer Science 2022-05-02 Hao-Chun Yang , Wan-Ting Hsieh , Trista Pei-Chun Chen

Unsupervised anomaly detection aims to identify anomalous samples from highly complex and unstructured data, which is pervasive in both fundamental research and industrial applications. However, most existing methods neglect the complex…

Machine Learning · Computer Science 2020-10-20 Haoyi Fan , Fengbin Zhang , Ruidong Wang , Liang Xi , Zuoyong Li

Electroencephalography (EEG) plays a crucial role in the diagnosis of various neurological disorders. However, small hospitals and clinics often lack advanced EEG signal analysis systems and are prone to misinterpretation in manual EEG…

Artificial Intelligence · Computer Science 2024-11-18 Chin-Sung Tung , Sheng-Fu Liang , Shu-Feng Chang , Chung-Ping Young