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The core problem of Magnetic Resonance Imaging (MRI) is the trade off between acceleration and image quality. Image reconstruction and super-resolution are two crucial techniques in Magnetic Resonance Imaging (MRI). Current methods are…

图像与视频处理 · 电气工程与系统科学 2021-12-16 Chun-Mei Feng , Yunlu Yan , Huazhu Fu , Li Chen , Yong Xu

Machine learning techniques have become increasingly popular in the field of resting state fMRI (functional magnetic resonance imaging) network based classification. However, the application of convolutional networks has been proposed only…

机器学习 · 统计学 2017-07-24 Regina Meszlényi , Krisztian Buza , Zoltán Vidnyánszky

Learning-based methods have demonstrated remarkable performance in solving inverse problems, particularly in image reconstruction tasks. Despite their success, these approaches often lack theoretical guarantees, which are crucial in…

数值分析 · 数学 2025-10-21 Clemens Arndt , Judith Nickel

The matrix inversion is an interesting topic in algebra mathematics. However, to determine an inverse matrix from a given matrix is required many computation tools and time resource if the size of matrix is huge. In this paper, we have…

离散数学 · 计算机科学 2017-08-28 Thuan Nguyen

Learned inverse problem solvers exhibit remarkable performance in applications like image reconstruction tasks. These data-driven reconstruction methods often follow a two-step scheme. First, one trains the often neural network-based…

We propose using a coordinate network decoder for the task of super-resolution in MRI. The continuous signal representation of coordinate networks enables this approach to be scale-agnostic, i.e. one can train over a continuous range of…

Many challenging image processing tasks can be described by an ill-posed linear inverse problem: deblurring, deconvolution, inpainting, compressed sensing, and superresolution all lie in this framework. Traditional inverse problem solvers…

计算机视觉与模式识别 · 计算机科学 2019-06-05 Davis Gilton , Greg Ongie , Rebecca Willett

The human brain is a complex system, and understanding its mechanisms has been a long-standing challenge in neuroscience. The study of the functional connectome, which maps the functional connections between different brain regions, has…

神经与进化计算 · 计算机科学 2025-04-14 Tananun Songdechakraiwut , Yutong Wu

Radial-basis-function networks are traditionally defined for sets of vector-based observations. In this short paper, we reformulate such networks so that they can be applied to adjacency-matrix representations of weighted, directed graphs…

机器学习 · 计算机科学 2019-08-05 Isaac J. Sledge , Jose C. Principe

Inverse problems arise in a number of domains such as medical imaging, remote sensing, and many more, relying on the use of advanced signal and image processing approaches -- such as sparsity-driven techniques -- to determine their…

机器学习 · 计算机科学 2019-02-01 Jaweria Amjad , Zhaoyan Lyu , Miguel R. D. Rodrigues

Neural networks allow solving many ill-posed inverse problems with unprecedented performance. Physics informed approaches already progressively replace carefully hand-crafted reconstruction algorithms in real applications. However, these…

机器学习 · 计算机科学 2023-12-19 Alban Gossard , Pierre Weiss

Centrality metrics have been used in various networks, such as communication, social, biological, geographic, or contact networks. In particular, they have been used in order to study and analyze targeted attack behaviors and investigated…

社会与信息网络 · 计算机科学 2021-07-23 Zelin Wan , Yash Mahajan , Beom Woo Kang , Terrence J. Moore , Jin-Hee Cho

We present a computational framework for analysis and visualization of non-linear functional connectivity in the human brain from resting state functional MRI (fMRI) data for purposes of recovering the underlying network community structure…

神经与进化计算 · 计算机科学 2014-07-16 Axel Wismüller , Xixi Wang , Adora M. DSouza , Mahesh B. Nagarajan

Estimating the number of degrees of freedom of a mechanical system or an engineering structure from the time-series of a small set of sensors is a basic problem in diagnostics, which, however, is often overlooked when monitoring their…

数据分析、统计与概率 · 物理学 2022-03-08 Paolo Celli , Maurizio Porfiri

We define and study error detection and correction tasks that are useful for 3D reconstruction of neurons from electron microscopic imagery, and for image segmentation more generally. Both tasks take as input the raw image and a binary mask…

计算机视觉与模式识别 · 计算机科学 2017-12-05 Jonathan Zung , Ignacio Tartavull , Kisuk Lee , H. Sebastian Seung

The response matrix of a resistor network is the linear map from the potential at the boundary vertices to the net current at the boundary vertices. For circular planar resistor networks, Curtis, Ingerman, and Morrow have given a necessary…

组合数学 · 数学 2018-12-05 Yulia Alexandr , Brian Burks , Sunita Chepuri , Patricia Commins

The structural network of the brain, or structural connectome, can be represented by fiber bundles generated by a variety of tractography methods. While such methods give qualitative insights into brain structure, there is controversy over…

计算机视觉与模式识别 · 计算机科学 2022-06-15 Kristen M. Campbell , Haocheng Dai , Zhe Su , Martin Bauer , P. Thomas Fletcher , Sarang C. Joshi

This review provides an introduction to - and overview of - the current state of the art in neural-network based regularization methods for inverse problems in imaging. It aims to introduce readers with a solid knowledge in applied…

最优化与控制 · 数学 2023-12-25 Andreas Habring , Martin Holler

Modularity for multilayer networks, also called multislice modularity, is parametric to a resolution factor and an inter-layer coupling factor. The former is useful to express layer-specific relevance and the latter quantifies the strength…

社会与信息网络 · 计算机科学 2017-09-22 Alessia Amelio , Andrea Tagarelli

Complex networks are ubiquitous to several Computer Science domains. Centrality measures are an important analysis mechanism to uncover vital elements of complex networks. However, these metrics have high computational costs and…

机器学习 · 计算机科学 2018-10-30 Felipe Grando , Lisando Z. Granville , Luis C. Lamb