Results 41 to 50 of about 94,123 (306)

Superresolution Reconstruction of Magnetic Resonance Images Based on a Nonlocal Graph Network

open access: yesEAI Endorsed Transactions on Internet of Things, 2022
INTRODUCTION: High-resolution (HR) medical images are very important for doctors when diagnosing the internal pathological structures of patients and formulating precise treatment plans.
Yuanhang Li   +3 more
doaj   +1 more source

Binary Coding of Resonance Graphs of Catacondensed Polyhexes

open access: yesMatch Communications in Mathematical and in Computer Chemistry, 2023
A catacondensed polyhex H is a connected subgraph of a hexagonal system such that any edge of H lies in a hexagon of H, any triple of hexagons of H has an empty intersection and the inner dual of H is a cactus graph. A perfect matching M of a catacondensed polyhex H is relevant if every cycle of the inner dual of H admits a vertex that corresponds to ...
openaire   +4 more sources

Spectrum optimization of dynamic networks for reduction of vulnerability against adversarial resonance attacks

open access: yesFrontiers in Complex Systems
Resonance is a well-known phenomenon that happens in systems with second order dynamics. In this paper, we address the fundamental question of making a network robust to signal being periodically pumped into it at or near a resonant frequency by an ...
Alp Sahin   +3 more
doaj   +1 more source

Square-cut: a segmentation algorithm on the basis of a rectangle shape. [PDF]

open access: yesPLoS ONE, 2012
We present a rectangle-based segmentation algorithm that sets up a graph and performs a graph cut to separate an object from the background. However, graph-based algorithms distribute the graph's nodes uniformly and equidistantly on the image.
Jan Egger   +6 more
doaj   +1 more source

Diagnosis of Mild Cognitive Impairment With Ordinal Pattern Kernel

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022
Mild cognitive impairment (MCI) belongs to the prodromal stage of Alzheimer’s disease (AD). Accurate diagnosis of MCI is very important for possibly deferring AD progression.
Kai Ma, Shuo Huang, Daoqiang Zhang
doaj   +1 more source

Adaptive acoustic feedback control in aphasia Therapy: A Graph-Based learning approach for Unintended resonance suppression in Mandarin (Chinese)-Speaking aphasic patients

open access: yesEgyptian Informatics Journal
Aphasia therapy for Mandarin-speaking patients presents distinct challenges due to the language’s tonal characteristics and the presence of unforeseen vocal resonance, which reduces intelligibility and distorts tone contours.
Jiayi Zhang   +3 more
doaj   +1 more source

Reproducibility of graph metrics in fMRI networks

open access: yesFrontiers in Neuroinformatics, 2010
The reliability of graph metrics calculated in network analysis is essential to the interpretation of complex network organization. These graph metrics are used to deduce the small-world properties in networks.
Qawi K Telesford   +8 more
doaj   +1 more source

NF-GAT: A Node Feature-Based Graph Attention Network for ASD Classification

open access: yesIEEE Open Journal of Engineering in Medicine and Biology
Goal: The purpose of this paper is to recognize autism spectrum disorders (ASD) using graph attention network. Methods: we propose a node features graph attention network (NF-GAT) for learning functional connectivity (FC) features to achieve ASD ...
Shuaiqi Liu   +5 more
doaj   +1 more source

Non-Weyl resonance asymptotics for quantum graphs [PDF]

open access: yesAnalysis & PDE, 2011
We consider the resonances of a quantum graph $\mathcal G$ that consists of a compact part with one or more infinite leads attached to it. We discuss the leading term of the asymptotics of the number of resonances of $\mathcal G$ in a disc of a large radius.
Davies, Brian, Pushnitski, Alexander
openaire   +4 more sources

Consensus between pipelines in structural brain networks. [PDF]

open access: yes, 2014
Structural brain networks may be reconstructed from diffusion MRI tractography data and have great potential to further our understanding of the topological organisation of brain structure in health and disease.
Dayan, M   +48 more
core   +1 more source

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