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相关论文: Class Augmented Semi-Supervised Learning for Pract…

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A learning classifier must outperform a trivial solution, in case of imbalanced data, this condition usually does not hold true. To overcome this problem, we propose a novel data level resampling method - Clustering Based Oversampling for…

机器学习 · 计算机科学 2018-11-13 Naman D. Singh , Abhinav Dhall

Critically ill patients in regular wards are vulnerable to unanticipated clinical dete- rioration which requires timely transfer to the intensive care unit (ICU). To allow for risk scoring and patient monitoring in such a setting, we…

机器学习 · 计算机科学 2016-11-17 Ahmed M. Alaa , Jinsung Yoon , Scott Hu , Mihaela van der Schaar

Incremental Learning (IL) allows AI systems to adapt to streamed data. Most existing algorithms make two strong hypotheses which reduce the realism of the incremental scenario: (1) new data are assumed to be readily annotated when streamed…

计算机视觉与模式识别 · 计算机科学 2020-08-26 Eden Belouadah , Adrian Popescu , Umang Aggarwal , Léo Saci

Camera-based physiological monitoring, especially remote photoplethysmography (rPPG), is a promising tool for health diagnostics, and state-of-the-art pulse estimators have shown impressive performance on benchmark datasets. We argue that…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Jeremy Speth , Nathan Vance , Benjamin Sporrer , Lu Niu , Patrick Flynn , Adam Czajka

Timely detection of concerning events is an important problem in clinical practice. In this paper, we consider the problem of conditional anomaly detection that aims to identify data instances with an unusual response, such as the omission…

机器学习 · 计算机科学 2026-04-27 Michal Valko , Hamed Valizadegan , Branislav Kveton , Gregory F. Cooper , Milos Hauskrecht

Continuous electrocardiogram (ECG) monitoring via wearable devices is vital for early cardiovascular disease detection. However, deploying deep learning models on resource-constrained microcontrollers faces reliability challenges,…

机器学习 · 计算机科学 2026-01-26 Mustafa Fuad Rifet Ibrahim , Maurice Meijer , Alexander Schlaefer , Peer Stelldinger

Class-imbalanced graph node classification is a practical yet underexplored research problem. Although recent studies have attempted to address this issue, they typically assume clean and reliable labels when processing class-imbalanced…

机器学习 · 计算机科学 2025-07-28 Riting Xia , Rucong Wang , Yulin Liu , Anchen Li , Xueyan Liu , Yan Zhang

The characterization of heart dynamics with a view to distinguish abnormal from normal behavior is an interesting topic in clinical sciences. Here we present an analysis of the Electro-cardiogram (ECG) signals obtained under controlled…

组织与器官 · 定量生物学 2018-09-05 Snehal M. Shekatkar , Yamini Kotriwar , K. P. Harikrishnan , G. Ambika

The class-imbalance issue is intrinsic to many real-world machine learning tasks, particularly to the rare-event classification problems. Although the impact and treatment of imbalanced data is widely known, the magnitude of a metric's…

机器学习 · 计算机科学 2022-06-22 Azim Ahmadzadeh , Rafal A. Angryk

Log anomaly detection is a critical component in modern software system security and maintenance, serving as a crucial support and basis for system monitoring, operation, and troubleshooting. It aids operations personnel in timely…

软件工程 · 计算机科学 2024-07-31 Yingying He , Xiaobing Pei

Class imbalance is prevalent in real-world node classification tasks and poses great challenges for graph learning models. Most existing studies are rooted in a class-rebalancing (CR) perspective and address class imbalance with class-wise…

Medical image segmentation is critical for computer-aided diagnosis. However, dense pixel-level annotation is time-consuming and expensive, and medical datasets often exhibit severe class imbalance. Such imbalance causes minority structures…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Yingxue Su , Yiheng Zhong , Keying Zhu , Zimu Zhang , Zhuoru Zhang , Yifang Wang , Yuxin Zhang , Jingxin Liu

The performances of commonly used electrocardiogram (ECG) diagnosis models have recently improved with the introduction of deep learning (DL). However, the impact of various combinations of multiple DL components and/or the role of data…

信号处理 · 电气工程与系统科学 2022-08-02 Jae-Won Choi , Dae-Yong Hong , Chan Jung , Eugene Hwang , Sung-Hyuk Park , Seung-Young Roh

Accurate uncertainty quantification is critical for reliable predictive modeling. Existing methods typically address either aleatoric uncertainty due to measurement noise or epistemic uncertainty resulting from limited data, but not both in…

机器学习 · 统计学 2026-03-04 Ilia Azizi , Juraj Bodik , Jakob Heiss , Bin Yu

We present algorithms for the detection of a class of heart arrhythmias with the goal of eventual adoption by practicing cardiologists. In clinical practice, detection is based on a small number of meaningful features extracted from the…

机器学习 · 统计学 2016-07-14 Choudur Lakshminarayan , Tony Basil

Positive-unlabeled learning (PUL) aims at learning a binary classifier from only positive and unlabeled training data. Even though real-world applications often involve imbalanced datasets where the majority of examples belong to one class,…

机器学习 · 统计学 2024-03-12 Emilio Dorigatti , Jann Goschenhofer , Benjamin Schubert , Mina Rezaei , Bernd Bischl

Cerebral stroke, the second most substantial cause of death universally, has been a primary public health concern over the last few years. With the help of machine learning techniques, early detection of various stroke alerts is accessible,…

机器学习 · 计算机科学 2022-11-16 Yuru Jing

Electronic health records contain rich textual data which possess critical predictive information for machine-learning based diagnostic aids. However many traditional machine learning methods fail to simultaneously integrate both vector…

机器学习 · 计算机科学 2012-07-31 Thomas Perry , Hongyuan Zha , Patricio Frias , Dadan Zeng , Mark Braunstein

The combination of semi-supervised learning (SemiSL) and contrastive learning (CL) has been successful in medical image segmentation with limited annotations. However, these works often rely on pretext tasks that lack the specificity…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Zehua Cheng , Di Yuan , Thomas Lukasiewicz

Heart Sound (also known as phonocardiogram (PCG)) analysis is a popular way that detects cardiovascular diseases (CVDs). Most PCG analysis uses supervised way, which demands both normal and abnormal samples. This paper proposes a method of…

声音 · 计算机科学 2021-01-15 Shengchen Li , Ke Tian , Rui Wang
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