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Magnetic Resonance Imaging (MRI) is crucial for clinical diagnostics but is hindered by prolonged scan times. Current deep learning models enhance MRI reconstruction but are often memory-intensive and unsuitable for resource-limited…

图像与视频处理 · 电气工程与系统科学 2025-07-17 Haosen Zhang , Jiahao Huang , Yinzhe Wu , Congren Dai , Fanwen Wang , Zhenxuan Zhang , Guang Yang

This paper proposes fast randomized algorithms for computing the Kronecker Tensor Decomposition (KTD). The proposed algorithms can decompose a given tensor into the KTD format much faster than the existing state-of-the-art algorithms. Our…

数值分析 · 数学 2025-05-22 Salman Ahmadi-Asl , Naeim Rezaeian , Andre L. F. de Almeida , Yipeng Liu

High-dimensional Kronecker-structured estimation faces a conflict between non-convex scaling ambiguities and statistical robustness. The arbitrary factor scaling distorts gradient magnitudes, rendering standard fixed-threshold robust…

统计方法学 · 统计学 2025-12-23 Xiaoyu Zhang , Zhiyun Fan , Wenyang Zhang , Di Wang

Achieving fast and reliable temporal signal encoding is crucial for low-power, always-on systems. While current spike-based encoding algorithms rely on complex networks or precise timing references, simple and robust encoding models can be…

神经与进化计算 · 计算机科学 2025-04-23 Filippo Costa , Chiara De Luca

The low complexity quantization of channel state information (CSI) and the utilization of vertical freedom of three dimension (3D) channels are two critical issues in the limited feedback design of the \emph{full dimension…

信息论 · 计算机科学 2016-05-04 Lisi Jiang , Juling Zeng

Current 3DGS compression methods largely forego the neural analysis-synthesis transform, which is a crucial component in learned signal compression systems. As a result, redundancy removal is left solely to the entropy coder, overburdening…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Hao Xu , Xiaolin Wu , Xi Zhang

Dynamic mode decomposition (DMD) has become a powerful data-driven method for analyzing the spatiotemporal dynamics of complex, high-dimensional systems. However, conventional DMD methods are limited to matrix-based formulations, which…

系统与控制 · 电气工程与系统科学 2025-08-05 Ziqin He , Mengqi Hu , Yifei Lou , Can Chen

We propose an automated computational algorithm for simultaneous model selection and parameter identification for the hyperelastic mechanical characterization of human brain tissue. Following the motive of the recently proposed…

Natural signals and images are well-known to be approximately sparse in transform domains such as Wavelets and DCT. This property has been heavily exploited in various applications in image processing and medical imaging. Compressed sensing…

机器学习 · 计算机科学 2015-10-26 Saiprasad Ravishankar , Yoram Bresler

We consider the estimation and inference of graphical models that characterize the dependency structure of high-dimensional tensor-valued data. To facilitate the estimation of the precision matrix corresponding to each way of the tensor, we…

机器学习 · 统计学 2019-02-27 Xiang Lyu , Will Wei Sun , Zhaoran Wang , Han Liu , Jian Yang , Guang Cheng

Higher-order tensors are well-suited for representing multi-dimensional data, such as images and videos, which typically characterize low-rank structures. Low-rank tensor decomposition has become essential in machine learning and computer…

计算机视觉与模式识别 · 计算机科学 2025-10-08 Zhengyun Cheng , Ruizhe Zhang , Guanwen Zhang , Yi Xu , Xiangyang Ji , Wei Zhou

Transformer-based encoder-decoder models have achieved remarkable success in image-to-image transfer tasks, particularly in image restoration. However, their high computational complexity-manifested in elevated FLOPs and parameter…

计算机视觉与模式识别 · 计算机科学 2025-01-17 Yongheng Zhang , Danfeng Yan

This paper studies a tensor-structured linear regression model with a scalar response variable and tensor-structured predictors, such that the regression parameters form a tensor of order $d$ (i.e., a $d$-fold multiway array) in…

机器学习 · 计算机科学 2020-11-26 Talal Ahmed , Haroon Raja , Waheed U. Bajwa

In this paper, we present a sparse neural network decoder (SNND) of polar codes based on belief propagation (BP) and deep learning. At first, the conventional factor graph of polar BP decoding is converted to the bipartite Tanner graph…

信号处理 · 电气工程与系统科学 2018-11-27 Weihong Xu , Xiaohu You , Chuan Zhang , Yair Be'ery

Low-rank tensor decompositions (TDs) provide an effective framework for multiway data analysis. Traditional TD methods rely on predefined structural assumptions, such as CP or Tucker decompositions. From a probabilistic perspective, these…

机器学习 · 计算机科学 2025-06-30 Zhengyun Cheng , Changhao Wang , Guanwen Zhang , Yi Xu , Wei Zhou , Xiangyang Ji

This paper presents a new clustering algorithm for symmetric positive semi-definite (SPSD) matrices, called K-Tensors. The method identifies structured subsets of the SPSD cone characterized by common principal component (CPC)…

机器学习 · 计算机科学 2025-09-03 Hanchao Zhang , Xiaomeng Ju , Baoyi Shi , Lingsong Meng , Thaddeus Tarpey

A fine-grained account of functional selectivity in the cortex is essential for understanding how visual information is processed and represented in the brain. Classical studies using designed experiments have identified multiple…

神经元与认知 · 定量生物学 2025-10-27 Ethan Hwang , Hossein Adeli , Wenxuan Guo , Andrew Luo , Nikolaus Kriegeskorte

This paper evaluates Tucker decomposition and Singular Value Decomposition (SVD) for compressing neuroimaging data. Tucker decomposition preserves multi-dimensional relationships, achieving superior reconstruction fidelity and perceptual…

图像与视频处理 · 电气工程与系统科学 2025-11-25 Jaeho Kim , Daniel David , Ana Vizitiv

Hyperspectral images (HSIs) are often degraded by complex mixed noise during acquisition and transmission, making effective denoising essential for subsequent analysis. Recent hybrid approaches that bridge model-driven and data-driven…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Liang Li , Jianli Zhao , Sheng Fang , Siyu Chen , Hui Sun

Medical imaging studies have collected high dimensional imaging data to identify imaging biomarkers for diagnosis, screening, and prognosis, among many others. These imaging data are often represented in the form of a multi-dimensional…

应用统计 · 统计学 2017-11-09 Michelle F. Miranda , Hongtu Zhu , Joseph G. Ibrahim