Results 21 to 30 of about 1,208,308 (285)

Generalized modularity matrices [PDF]

, 2015
Various modularity matrices appeared in the recent literature on network analysis and algebraic graph theory. Their purpose is to allow writing as quadratic forms certain combinatorial functions appearing in the framework of graph clustering problems. In
D. Fasino, Dario Fasino, Francesco Tudisco, K. Rohe, M. E. J. Newman, M. E. J. Newman, M. Fiedler, M. Fiedler, M. Fiedler, P. Tarazaga, P. Tarazaga, R. R. Nadakuditi, V. Nikiforov   +12 more
core   +5 more sources

Machine learning for the detection of social anxiety disorder using effective connectivity and graph theory measures

Frontiers in Psychiatry, 2023
IntroductionThe early diagnosis and classification of social anxiety disorder (SAD) are crucial clinical support tasks for medical practitioners in designing patient treatment programs to better supervise the progression and development of SAD.
Abdulhakim Al-Ezzi, Nidal Kamel, Amal A. Al-Shargabi, Fares Al-Shargie, Alaa Al-Shargabi, Norashikin Yahya, Mohammed Isam Al-Hiyali   +6 more
doaj   +1 more source

EEG-Based Semantic Vigilance Level Classification Using Directed Connectivity Patterns and Graph Theory Analysis

IEEE Access, 2020
This paper proposes two novel methods to classify semantic vigilance levels by utilizing EEG directed connectivity patterns with their corresponding graphical network measures.
Fares Mohammed Al-Shargie, Omnia Hassanin, Usman Tariq, Hasan Al-Nashash   +3 more
doaj   +1 more source

Dynamic programming for graphs on surfaces [PDF]

, 2010
We provide a framework for the design and analysis of dynamic programming algorithms for surface-embedded graphs on n vertices and branchwidth at most k.
B. Courcelle, B. Mohar, E.D. Demaine, E.D. Demaine, F. Dorn, F. Dorn, F. Dorn, F. Flajolet, F.V. Fomin, H.L. Bodlaender, J.A. Telle, N. Robertson, P. Flajolet, P. Seymour, S. Arnborg, S. Cabello   +15 more
core   +1 more source

Opportunities analysis the solution of the problems of the graph theory with computer mathematics systems

Lietuvos Matematikos Rinkinys, 2010
In this paper we analyze solutions of the problems of the graph theory with computer mathematics systems MAPLE and MATHEMATICA with purpose to reveal the opportunity of the syntax of the main commands, theirs similarities and differences.
Sigita Turskienė, Kristina Kiriliauskaitė   +1 more
doaj   +1 more source

Brain network analysis of interictal epileptiform discharges from ECoG to identify epileptogenic zone in pediatric patients with epilepsy and focal cortical dysplasia type II: A retrospective study

Frontiers in Neurology, 2022
ObjectiveFor patients with drug–resistant focal epilepsy, intracranial monitoring remains the gold standard for surgical intervention. Focal cortical dysplasia (FCD) is the most common cause of pharmacoresistant focal epilepsy in pediatric patients who ...
Zhi Ji Wang, Zhi Ji Wang, Byoung Ho Noh, Eun Seong Kim, Donghwa Yang, Donghwa Yang, Shan Yang, Nam Young Kim, Yun Jung Hur, Heung Dong Kim   +9 more
doaj   +1 more source

Altered Topological Properties of Brain Structural Covariance Networks in Patients With Cervical Spondylotic Myelopathy

Frontiers in Human Neuroscience, 2020
BackgroundBrain structural alterations play an important role in patients with cervical spondylotic myelopathy (CSM). However, while there have been studies on regional brain structural alterations, only few studies have focused on the topological ...
Cuili Kuang, Yunfei Zha, Changsheng Liu, Jun Chen   +3 more
doaj   +1 more source

A Hilbert Space Theory of Generalized Graph Signal Processing

, 2019
Graph signal processing (GSP) has become an important tool in many areas such as image processing, networking learning and analysis of social network data.
Ji, Feng, Tay, Wee Peng
core   +1 more source

Abnormal intrinsic brain functional network dynamics in patients with postherpetic neuralgia

Frontiers in Neurology
BackgroundThis study aimed to investigate the temporal characteristics of the functional connection state patterns and the topological structure of dynamic brain functional networks of patients with postherpetic neuralgia (PHN).MethodsWe recruited 23 PHN
Yutao You, Tianci Liu, Li Luo, Qingzhou Li, Yan Yang, Daibin Jiang, Baijintao Sun, Chuan Zhang, Bing Li, Hanfeng Yang   +9 more
doaj   +1 more source

The Pre-Interictal Network State in Idiopathic Generalized Epilepsies

Brain Sciences, 2023
Generalized spike wave discharges (GSWDs) are the typical electroencephalographic findings of Idiopathic Generalized Epilepsies (IGEs). These discharges are either interictal or ictal and recent evidence suggests differences in their pathogenesis.
Dimitrios Pitetzis, Christos Frantzidis, Elizabeth Psoma, Smaranda Nafsika Ketseridou, Georgia Deretzi, Anna Kalogera-Fountzila, Panagiotis D. Bamidis, Martha Spilioti   +7 more
doaj   +1 more source