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Unsupervised multivariate time series (MTS) representation learning aims to extract compact and informative representations from raw sequences without relying on labels, enabling efficient transfer to diverse downstream tasks. In this…

机器学习 · 计算机科学 2025-09-22 Yi Xu , Yitian Zhang , Yun Fu

Based on digital pathology slice scanning technology, artificial intelligence algorithms represented by deep learning have achieved remarkable results in the field of computational pathology. Compared to other medical images, pathology…

图像与视频处理 · 电气工程与系统科学 2023-11-17 Hao Quan , Xingyu Li , Weixing Chen , Qun Bai , Mingchen Zou , Ruijie Yang , Tingting Zheng , Ruiqun Qi , Xinghua Gao , Xiaoyu Cui

We propose a method to improve subject transfer in motor imagery BCIs by aligning covariance matrices on a Riemannian manifold, followed by computing a new common spatial patterns (CSP) based spatial filter. We explore various ways to…

计算机视觉与模式识别 · 计算机科学 2025-04-25 Tekin Gunasar , Virginia de Sa

The performance of deep segmentation models often degrades due to distribution shifts in image intensities between the training and test data sets. This is particularly pronounced in multi-centre studies involving data acquired using…

图像与视频处理 · 电气工程与系统科学 2021-08-03 Zhendong Liu , Van Manh , Xin Yang , Xiaoqiong Huang , Karim Lekadir , Víctor Campello , Nishant Ravikumar , Alejandro F Frangi , Dong Ni

Spatial transcriptomics (ST) enables the visualization of gene expression within the context of tissue morphology. This emerging discipline has the potential to serve as a foundation for developing tools to design precision medicines.…

图像与视频处理 · 电气工程与系统科学 2024-11-12 Shivam Kumar , Samrat Chatterjee

The integration of different imaging modalities, such as structural, diffusion tensor, and functional magnetic resonance imaging, with deep learning models has yielded promising outcomes in discerning phenotypic characteristics and…

图像与视频处理 · 电气工程与系统科学 2024-10-08 Zhiyuan Li , Hailong Li , Anca L. Ralescu , Jonathan R. Dillman , Mekibib Altaye , Kim M. Cecil , Nehal A. Parikh , Lili He

Recently the deep learning has shown its advantage in representation learning and clustering for time series data. Despite the considerable progress, the existing deep time series clustering approaches mostly seek to train the deep neural…

机器学习 · 计算机科学 2023-01-02 Ying Zhong , Dong Huang , Chang-Dong Wang

Painting classification plays a vital role in organizing, finding, and suggesting artwork for digital and classic art galleries. Existing methods struggle with adapting knowledge from the real world to artistic images during training,…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Mridula Vijendran , Frederick W. B. Li , Jingjing Deng , Hubert P. H. Shum

Generalization to previously unseen images with potential domain shifts and different styles is essential for clinically applicable medical image segmentation, and the ability to disentangle domain-specific and domain-invariant features is…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Ran Gu , Guotai Wang , Jiangshan Lu , Jingyang Zhang , Wenhui Lei , Yinan Chen , Wenjun Liao , Shichuan Zhang , Kang Li , Dimitris N. Metaxas , Shaoting Zhang

A new modification of the minimum-contrast estimator (the weighted MCE) of drift parameter in a linear stochastic evolution equation with additive fractional noise is introduced in the setting of the spectral approach (Fourier coordinates…

概率论 · 数学 2019-09-30 Pavel Kriz

Dynamic Contrast-Enhanced Magnetic Resonance Imaging (DCE-MRI) is a valuable tool to localize, characterize, and evaluate anomalous prostate tissue. Ultrafast gradient-echo acquisitions of MRI volumes are generated at regular time intervals…

In this work we consider the image reconstruction problem of sparsely sampled dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI). DCE-MRI is a technique for acquiring a series of MR images before, during and after intravenous…

图像与视频处理 · 电气工程与系统科学 2020-02-24 Kati Niinimäki , Matti Hanhela , Ville Kolehmainen

Purpose: To improve the quality of images obtained via dynamic contrast-enhanced MRI (DCE-MRI) that include motion artifacts and blurring using a deep learning approach. Methods: A multi-channel convolutional neural network (MARC) based…

计算机视觉与模式识别 · 计算机科学 2020-03-02 Daiki Tamada , Marie-Luise Kromrey , Hiroshi Onishi , Utaroh Motosugi

Deep learning models such as convolutional neural net- work have been widely used in 3D biomedical segmentation and achieve state-of-the-art performance. However, most of them often adapt a single modality or stack multiple modalities as…

计算机视觉与模式识别 · 计算机科学 2017-04-26 Kuan-Lun Tseng , Yen-Liang Lin , Winston Hsu , Chung-Yang Huang

Deep learning (DL) applied to breast tissue segmentation in magnetic resonance imaging (MRI) has received increased attention in the last decade, however, the domain shift which arises from different vendors, acquisition protocols, and…

Combining neuroimaging datasets from multiple sites and scanners can help increase statistical power and thus provide greater insight into subtle neuroanatomical effects. However, site-specific effects pose a challenge by potentially…

计算机视觉与模式识别 · 计算机科学 2024-08-29 Ayodeji Ijishakin , Ana Lawry Aguila , Elizabeth Levitis , Ahmed Abdulaal , Andre Altmann , James Cole

While unsupervised change detection using contrastive learning has been significantly improved the performance of literature techniques, at present, it only focuses on the bi-temporal change detection scenario. Previous state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Yuxing Chen , Lorenzo Bruzzone

Foundational vision models, such as the Segment Anything Model (SAM), have achieved significant breakthroughs through extensive pre-training on large-scale visual datasets. Despite their general success, these models may fall short in…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Ke Zhou , Zhongwei Qiu , Dongmei Fu

Unpaired image-to-image translation involves learning mappings between source domain and target domain in the absence of aligned or corresponding samples. Score based diffusion models have demonstrated state-of-the-art performance in…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Venkata Narendra Kotyada , Revanth Eranki , Nagesh Bhattu Sristy

A new dynamic latent space eigenmodel (LSM) is proposed for weighted temporal networks. The model accommodates integer-valued weights, excess of zeros, time-varying node positions (features), and time-varying network sparsity. The latent…

统计方法学 · 统计学 2026-04-15 Roberto Casarin , Matteo Iacopini , Antonio Peruzzi