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An accelerated failure time (AFT) model assumes a log-linear relationship between failure times and a set of covariates. In contrast to other popular survival models that work on hazard functions, the effects of covariates are directly on…

机器学习 · 统计学 2025-07-15 Gwangsu Kim , Sangwook Kang

Purpose: Arterial spin labeling (ASL) perfusion imaging indicates direct and absolute measurement of cerebral blood flow (CBF). Arterial transit time (ATT) is a related physiological parameter reflecting the duration for the labeled spins…

图像与视频处理 · 电气工程与系统科学 2022-06-15 Yiran Li , Ze Wang

Objective. Arrhythmia classification from electrocardiograms (ECGs) suffers from high false positive rates and limited cross-dataset generalization, particularly for atrial fibrillation (AF) detection where specificity ranges from 0.72 to…

机器学习 · 计算机科学 2026-02-16 Tiezhi Wang , Wilhelm Haverkamp , Nils Strodthoff

We tackle the problem of classifying Electrocardiography (ECG) signals with the aim of predicting the onset of Paroxysmal Atrial Fibrillation (PAF). Atrial fibrillation is the most common type of arrhythmia, but in many cases PAF episodes…

机器学习 · 计算机科学 2018-04-06 Filippo Maria Bianchi , Lorenzo Livi , Alberto Ferrante , Jelena Milosevic , Miroslaw Malek

Atrial fibrillation (AF), a common cardiac arrhythmia, significantly increases the risk of stroke, heart disease, and mortality. Photoplethysmography (PPG) offers a promising solution for continuous AF monitoring, due to its cost efficiency…

信号处理 · 电气工程与系统科学 2024-04-25 Runze Yan , Cheng Ding , Ran Xiao , Aleksandr Fedorov , Randall J Lee , Fadi Nahab , Xiao Hu

Hypertension and atrial fibrillation (AF) often coexist in critically ill patients, significantly increasing mortality rates in the ICU. Early identification of high-risk individuals is crucial for targeted interventions. However, limited…

应用统计 · 统计学 2025-06-19 Shuheng Chen , Yong Si , Junyi Fan , Li Sun , Greg Placencia , Elham Pishgar , Kamiar Alaei , Maryam Pishgar

The acute respiratory distress syndrome (ARDS) is a severe form of hypoxemic respiratory failure with in-hospital mortality of 35-46%. High mortality is thought to be related in part to challenges in making a prompt diagnosis, which may in…

机器学习 · 计算机科学 2021-09-28 Gregory B. Rehm , Chao Wang , Irene Cortes-Puch , Chen-Nee Chuah , Jason Adams

Atrial fibrillation (AF) is the most prevalent form of cardiac arrhythmia and is associated with increased morbidity and mortality. The effectiveness of current clinical interventions for AF is often limited by an incomplete understanding…

图像与视频处理 · 电气工程与系统科学 2024-09-25 Lucas Beveridge , Le Zhang

Heart failure (HF) affects 11.8% of adults aged 65 and older, reducing quality of life and longevity. Preventing HF can reduce morbidity and mortality. We hypothesized that artificial intelligence (AI) applied to 24-hour single-lead…

信号处理 · 电气工程与系统科学 2026-01-05 Eran Zvuloni , Ronit Almog , Michael Glikson , Shany Brimer Biton , Ilan Green , Izhar Laufer , Offer Amir , Joachim A. Behar

Supervised deep learning has been widely used in the studies of automatic ECG classification, which largely benefits from sufficient annotation of large datasets. However, most of the existing large ECG datasets are roughly annotated, so…

机器学习 · 计算机科学 2020-12-11 Yang Liu , Kuanquan Wang , Qince Li , Runnan He , Yongfeng Yuan , Henggui Zhang

Cardiovascular diseases (CVDs) are the number one cause of death worldwide. While there is growing evidence that the atrial fibrillation (AF) has strong associations with various CVDs, this heart arrhythmia is usually diagnosed using…

系统与控制 · 电气工程与系统科学 2022-07-13 Wei-Ying Yi , Peng-Fei Liu , Sheung-Lai Lo , Ya-Fen Chan , Yu Zhou , Yee Leung , Kam-Sang Woo , Alex Pui-Wai Lee , Jia-Min Chen , Kwong-Sak Leung

Artificial reverberation (AR) models play a central role in various audio applications. Therefore, estimating the AR model parameters (ARPs) of a reference reverberation is a crucial task. Although a few recent deep-learning-based…

声音 · 计算机科学 2022-07-21 Sungho Lee , Hyeong-Seok Choi , Kyogu Lee

The human brain performs tasks with an outstanding energy efficiency, i.e., with approximately 20 Watts. The state-of-the-art Artificial/Deep Neural Networks (ANN/DNN), on the other hand, have recently been shown to consume massive amounts…

机器学习 · 计算机科学 2024-09-02 Amin Aminifar , Baichuan Huang , Azra Abtahi , Amir Aminifar

The gold standard to assess respiration during sleep is polysomnography; a technique that is burdensome, expensive (both in analysis time and measurement costs), and difficult to repeat. Automation of respiratory analysis can improve test…

The traditional method of diagnosing heart disease on ECG signal is artificial observation. Some have tried to combine expertise and signal processing to classify ECG signal by heart disease type. However, the currency is not so sufficient…

信号处理 · 电气工程与系统科学 2019-10-29 Jie Zhang , Bohao Li , Kexin Xiang , Xuegang Shi

Deep Differentiable Logic Gate Networks (LGNs) and Lookup Table Networks (LUTNs) are demonstrated to be suitable for the automatic classification of electrocardiograms (ECGs) using the inter-patient paradigm. The methods are benchmarked…

机器学习 · 计算机科学 2026-01-19 Wout Mommen , Lars Keuninckx , Paul Detterer , Achiel Colpaert , Piet Wambacq

The electrocardiogram (ECG) monitoring device is an expensive albeit essential device for the treatment and diagnosis of cardiovascular diseases (CVD). The cost of this device typically ranges from $2000 to $10000. Several studies have…

Blood pressure monitoring is an essential component of hypertension management and in the prediction of associated comorbidities. Blood pressure is a dynamic vital sign with frequent changes throughout a given day. Capturing blood pressure…

Atrial fibrillation (AF) is the most common arrhythmia affecting millions of people in the Western countries and, due to the widespread impact on the population and its medical relevance, is largely investigated in both clinical and…

医学物理 · 物理学 2014-09-12 Stefania Scarsoglio , Andrea Guala , Carlo Camporeale , Luca Ridolfi

Atrial arrhythmia can be categorized into tachycardia, flutter, and fibrillation. Atrial fibrillation is a prevalent heart disease that results in weak and irregular contractions of the atria. It affects millions people worldwide and…

医学物理 · 物理学 2024-02-01 Jiyue He