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Recent years have witnessed the emerging success of leveraging syntax graphs for the target sentiment classification task. However, we discover that existing syntax-based models suffer from two issues: noisy information aggregation and loss…

Computation and Language · Computer Science 2022-05-24 Bowen Xing , Ivor W. Tsang

Accurate and consistent predictions of echocardiography parameters are important for cardiovascular diagnosis and treatment. In particular, segmentations of the left ventricle can be used to derive ventricular volume, ejection fraction (EF)…

Computer Vision and Pattern Recognition · Computer Science 2022-07-07 Sarina Thomas , Andrew Gilbert , Guy Ben-Yosef

Despite the utility of neural networks (NNs) for astronomical time-series classification, the proliferation of learning architectures applied to diverse datasets has thus far hampered a direct intercomparison of different approaches. Here…

Instrumentation and Methods for Astrophysics · Physics 2020-10-05 Sara Jamal , Joshua S. Bloom

Robust and interpretable dementia diagnosis from noisy, non-stationary electroencephalography (EEG) is clinically essential yet remains challenging. To this end, we propose SeeGraph, a Sparse-Explanatory dynamic EEG-graph network that…

Signal Processing · Electrical Eng. & Systems 2026-03-19 Fengcheng Wu , Zhenxi Song , Guoyang Xu , Kaisong Hu , Zirui Wang , Yi Guo , Zhiguo Zhang

Purpose: Myocardium segmentation in echocardiography videos is a challenging task due to low contrast, noise, and anatomical variability. Traditional deep learning models either process frames independently, ignoring temporal information,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Bahar Khodabakhshian , Nima Hashemi , Armin Saadat , Zahra Gholami , In-Chang Hwang , Samira Sojoudi , Christina Luong , Purang Abolmaesumi , Teresa Tsang

Although deep learning has advanced automated electrocardiogram (ECG) diagnosis, prevalent supervised methods typically treat recordings as undifferentiated one-dimensional (1D) signals or two-dimensional (2D) images. This formulation…

Machine Learning · Computer Science 2026-01-13 Runze Ma , Caizhi Liao

Sleep stage classification is crucial for detecting patients' health conditions. Existing models, which mainly use Convolutional Neural Networks (CNN) for modelling Euclidean data and Graph Convolution Networks (GNN) for modelling…

Machine Learning · Computer Science 2023-09-06 Yuze Liu , Ziming Zhao , Tiehua Zhang , Kang Wang , Xin Chen , Xiaowei Huang , Jun Yin , Zhishu Shen

To facilitate diagnosis on cardiac ultrasound (US), clinical practice has established several standard views of the heart, which serve as reference points for diagnostic measurements and define viewports from which images are acquired.…

Image and Video Processing · Electrical Eng. & Systems 2024-03-04 Sarina Thomas , Cristiana Tiago , Børge Solli Andreassen , Svein Arne Aase , Jurica Šprem , Erik Steen , Anne Solberg , Guy Ben-Yosef

Ultrasound imaging is a commonly used technology for visualising patient anatomy in real-time during diagnostic and therapeutic procedures. High operator dependency and low reproducibility make ultrasound imaging and interpretation…

Percutaneous epicardial access (PEA), performed on a beating heart under fluoroscopy, enables arrhythmia treatment. However, advancing a needle toward the thin and moving pericardium remains highly challenging and risky. To address this…

Cardiac auscultation involves expert interpretation of abnormalities in heart sounds using stethoscope. Deep learning based cardiac auscultation is of significant interest to the healthcare community as it can help reducing the burden of…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Siddique Latif , Muhammad Usman , Rajib Rana , Junaid Qadir

Breast tumor segmentation is a critical task in computer-aided diagnosis (CAD) systems for breast cancer detection because accurate tumor size, shape and location are important for further tumor quantification and classification. However,…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Bryar Shareef , Alex Vakanski , Min Xian , Phoebe E. Freer

Spatial-temporal graph representations play a crucial role in urban sensing applications, including traffic analysis, human mobility behavior modeling, and citywide crime prediction. However, a key challenge lies in the noisy and sparse…

Machine Learning · Computer Science 2025-08-15 Qianru Zhang , Xinyi Gao , Haixin Wang , Dong Huang , Siu-Ming Yiu , Hongzhi Yin

Heart rate variability studies depend on the robust calculation of the tachogram, the heart rate times series, usually by the detection of R peaks in the electrocardiogram (ECG). ECGs however are subject to a number of sources of noise…

Quantitative Methods · Quantitative Biology 2019-02-19 Sean Parsons , Jan Huizinga

Echocardiography segmentation for cardiac analysis is time-consuming and resource-intensive due to the variability in image quality and the necessity to process scans from various standard views. While current automated segmentation methods…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Sekeun Kim , Hui Ren , Peng Guo , Abder-Rahman Ali , Patrick Zhang , Kyungsang Kim , Xiang Li , Quanzheng Li

Learning from longitudinal electronic health records is limited if it does not capture the temporal trajectories of the patient's state in a clinical setting. Graph models allow us to capture the hidden dependencies of the multivariate…

Machine Learning · Computer Science 2025-03-31 Munib Mesinovic , Soheila Molaei , Peter Watkinson , Tingting Zhu

Ultrasound imaging has been widely used in clinical examinations owing to the advantages of being portable, real-time, and radiation-free. Considering the potential of extensive deployment of autonomous examination systems in hospitals,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Zhongliang Jiang , Yunfeng Kang , Yuan Bi , Xuesong Li , Chenyang Li , Nassir Navab

Cardiac parametric mapping is useful for evaluating cardiac fibrosis and edema. Parametric mapping relies on single-shot heartbeat-by-heartbeat imaging, which is susceptible to intra-shot motion during the imaging window. However, reducing…

Image and Video Processing · Electrical Eng. & Systems 2025-03-25 Calder D. Sheagren , Brenden T. Kadota , Jaykumar H. Patel , Mark Chiew , Graham A. Wright

Computed tomography (CT) provides high spatial resolution visualization of 3D structures for scientific and clinical applications. Traditional analytical/iterative CT reconstruction algorithms require hundreds of angular data samplings, a…

Image and Video Processing · Electrical Eng. & Systems 2024-11-14 Di Xu , Yang Yang , Hengjie Liu , Qihui Lyu , Martina Descovich , Dan Ruan , Ke Sheng

Electrocardiographic signal is a subject to multiple noises, caused by various factors. It is therefore a standard practice to denoise such signal before further analysis. With advances of new branch of machine learning, called deep…

Neural and Evolutionary Computing · Computer Science 2019-01-18 Karol Antczak