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Low left ventricular ejection fraction (LEF) frequently remains undetected until progression to symptomatic heart failure, underscoring the need for scalable screening strategies. Although artificial intelligence-enabled electrocardiography…

机器学习 · 计算机科学 2026-04-07 Ya Zhou , Tianxiang Hao , Ziyi Cai , Haojie Zhu , Kejun He , Jia Liu , Xiaohan Fan , Jing Yuan

Electrocardiogram (ECG) analysis is a fundamental tool for diagnosing cardiovascular conditions, yet anomaly detection in ECG signals remains challenging due to their inherent complexity and variability. We propose Multi-scale Masked…

机器学习 · 计算机科学 2025-02-11 Ya Zhou , Yujie Yang , Jianhuang Gan , Xiangjie Li , Jing Yuan , Wei Zhao

We tackle the problem of computing counterfactual explanations -- minimal changes to the features that flip an undesirable model prediction. We propose a solution to this question for linear Support Vector Machine (SVMs) models. Moreover,…

机器学习 · 计算机科学 2022-12-16 Sebastian Salazar , Samuel Denton , Ansaf Salleb-Aouissi

Early detection of myocardial infarction (MI), a critical condition arising from coronary artery disease (CAD), is vital to prevent further myocardial damage. This study introduces a novel method for early MI detection using a one-class…

Due to the significant advancement of Natural Language Processing and Computer Vision-based models, Visual Question Answering (VQA) systems are becoming more intelligent and advanced. However, they are still error-prone when dealing with…

计算机视觉与模式识别 · 计算机科学 2022-01-11 Zeyd Boukhers , Timo Hartmann , Jan Jürjens

Electrocardiogram (ECG) is a widely used diagnostic tool for detecting heart conditions. Rare cardiac diseases may be underdiagnosed using traditional ECG analysis, considering that no training dataset can exhaust all possible cardiac…

计算机视觉与模式识别 · 计算机科学 2023-08-04 Aofan Jiang , Chaoqin Huang , Qing Cao , Shuang Wu , Zi Zeng , Kang Chen , Ya Zhang , Yanfeng Wang

Interpretability methods aim to help users build trust in and understand the capabilities of machine learning models. However, existing approaches often rely on abstract, complex visualizations that poorly map to the task at hand or require…

人机交互 · 计算机科学 2021-07-12 Harini Suresh , Kathleen M. Lewis , John V. Guttag , Arvind Satyanarayan

Electrocardiography (ECG) serves as an indispensable diagnostic tool in clinical practice, yet existing multimodal large language models (MLLMs) remain unreliable for ECG interpretation, often producing plausible but clinically incorrect…

Myocardial Infarction (MI) has the highest mortality of all cardiovascular diseases (CVDs). Detection of MI and information regarding its occurrence-time in particular, would enable timely interventions that may improve patient outcomes,…

信号处理 · 电气工程与系统科学 2021-04-06 Girmaw Abebe Tadesse , Hamza Javed , Yong Liu , Jin Liu , Jiyan Chen , Komminist Weldemariam , Tingting Zhu

Counterfactual Explanations (CFEs) interpret machine learning models by identifying the smallest change to input features needed to change the model's prediction to a desired output. For classification tasks, CFEs determine how close a…

机器学习 · 计算机科学 2025-10-01 Margarita A. Guerrero , Cristian R. Rojas

Counterfactual explanation is an important Explainable AI technique to explain machine learning predictions. Despite being studied actively, existing optimization-based methods often assume that the underlying machine-learning model is…

人工智能 · 计算机科学 2022-06-01 Wenzhuo Yang , Jia Li , Caiming Xiong , Steven C. H. Hoi

Counterfactual explanations enhance interpretability by identifying alternative inputs that produce different outputs, offering localized insights into model decisions. However, traditional methods often neglect causal relationships,…

机器学习 · 计算机科学 2025-05-23 Pouria Fatemi , Ehsan Sharifian , Mohammad Hossein Yassaee

Purpose: Tracer-kinetic models can be used for the quantitative assessment of contrast-enhanced MRI data. However, the model-fitting can produce unreliable results due to the limited data acquired and the high noise levels. Such problems…

图像与视频处理 · 电气工程与系统科学 2019-11-25 Cian M. Scannell , Amedeo Chiribiri , Adriana D. M. Villa , Marcel Breeuwer , Jack Lee

Reconstructing a 12-lead electrocardiogram (ECG) from a reduced lead set is an ill-posed inverse problem due to anatomical variability. Standard deep learning methods often ignore underlying cardiac pathology losing vital morphology in…

机器学习 · 计算机科学 2026-03-19 Youssef Youssef , Jitin Singla

Eating monitoring has remained an open challenge in medical research for years due to the lack of non-invasive sensors for continuous monitoring and the reliable methods for automatic behavior detection. In this paper, we present a pilot…

机器学习 · 计算机科学 2025-02-21 Xu-Lu Zhang , Zhen-Qun Yang , Dong-Mei Jiang , Ga Liao , Qing Li , Ramesh Jain , Xiao-Yong Wei

The electrocardiogram (ECG) is a vital tool for diagnosing heart diseases. However, many disease patterns are derived from outdated datasets and traditional stepwise algorithms with limited accuracy. This study presents a method for direct…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Oğuzhan Büyüksolak , İlkay Öksüz

In clinical practice, one often needs to identify whether a patient is at high risk of adverse outcomes after some key medical event. For example, quantifying the risk of adverse outcomes after an acute cardiovascular event helps healthcare…

We introduce MCCE: Monte Carlo sampling of valid and realistic Counterfactual Explanations for tabular data, a novel counterfactual explanation method that generates on-manifold, actionable and valid counterfactuals by modeling the joint…

机器学习 · 统计学 2024-01-26 Annabelle Redelmeier , Martin Jullum , Kjersti Aas , Anders Løland

Electrocardiograms (ECGs) are vital for monitoring cardiac health, enabling the assessment of heart rate variability (HRV), detection of arrhythmias, and diagnosis of cardiovascular conditions. However, ECG signals recorded from wearable…

机器学习 · 计算机科学 2025-12-17 Sharmad Kalpande , Nilesh Kumar Sahu , Haroon Lone

As deep learning has achieved state-of-the-art performance for many tasks of EEG-based BCI, many efforts have been made in recent years trying to understand what have been learned by the models. This is commonly done by generating a heatmap…

神经与进化计算 · 计算机科学 2023-08-21 Jian Cui , Liqiang Yuan , Zhaoxiang Wang , Ruilin Li , Tianzi Jiang