Results 11 to 20 of about 26,383,033 (201)

Dilation theory for rank two graph algebras. [PDF]

open access: yes, 2010
An analysis is given of $*$-representations of rank 2 single vertex graphs. We develop dilation theory for the non-selfadjoint algebras $\A_\theta$ and $\A_u$ which are associated with the commutation relation permutation $\theta$ of a 2-graph and, more ...
Yang, Dilian   +2 more
core   +4 more sources

Graph products of groups [PDF]

open access: yes, 1990
In the 1970's Baudisch introduced the idea of the semifree group, that is, a group in which the only relators are commutators of generators. Baudisch was mainly concerned with subgroup problems, employing length arguments on the elements of these groups.
Green, E.R, Green, Elisabeth Ruth
core   +7 more sources

Leveraging Graph-Based Representations to Enhance Machine Learning Performance in IIoT Network Security and Attack Detection

open access: yesApplied Sciences, 2023
In the dynamic and ever-evolving realm of network security, the ability to accurately identify and classify portscan attacks both inside and outside networks is of paramount importance.
Bader Alwasel   +4 more
doaj   +1 more source

Some topological indices of pentagonal double chains [PDF]

open access: yesITM Web of Conferences, 2022
In graph theory, lattices are used when some structural part of the graph repeats itself finitely or infinitely many times. They have applications in complex analysis and geometry in mathematics, and also natural applications in chemical graph theory. As
Mahalank Pushpalatha   +4 more
doaj   +1 more source

Graph Theory and IC Component Design Analysis

open access: yes2020 Third International Conference on Artificial Intelligence for Industries (AI4I), 2020
Graph analysis in large integrated circuit (IC) designs is an essential tool for verifying design logic and timing via dynamic timing analysis (DTA). IC designs resemble graphs with each logic gate as a vertex and the conductive connections between gates as edges.
James Obert, Sean Turner, Jason Hamlet
openaire   +2 more sources

A Tutorial on Graph Theory for Brain Signal Analysis

open access: yesCoRR, 2020
This tutorial paper refers to the use of graph-theoretic concepts for analyzing brain signals. For didactic purposes it splits into two parts: theory and application. In the first part, we commence by introducing some basic elements from graph theory and stemming algorithmic tools, which can be employed for data-analytic purposes. Next, we describe how
Nikolaos A. Laskaris   +2 more
openaire   +3 more sources

Investigating cognitive flexibility deficit in schizophrenia using task-based whole-brain functional connectivity

open access: yesFrontiers in Psychiatry, 2022
BackgroundCognitive flexibility is a core cognitive control function supported by the brain networks of the whole-brain. Schizophrenic patients show deficits in cognitive flexibility in conditions such as task-switching.
Yanqing Wang   +4 more
doaj   +1 more source

Study of brain network alternations in non-lesional epilepsy patients by BOLD-fMRI

open access: yesFrontiers in Neuroscience, 2023
ObjectiveTo investigate the changes of brain network in epilepsy patients without intracranial lesions under resting conditions.MethodsTwenty-six non-lesional epileptic patients and 42 normal controls were enrolled for BOLD-fMRI examination.
Zhisen Li   +15 more
doaj   +1 more source

Graph Theory in the Analysis of Arithmophobia

open access: yesInternational Journal of Innovative Technology and Exploring Engineering, 2019
In this paper, Graph theoretical concepts are applied to analyze the reasons behind Arithmophobia commonly found among the students.Bull graph is used to epitomize Mild Arithmophobia which occurs when the preparation of students to face any test is deficient.Flower graph is used to represent Intense Arithmophobia.
A. Uma Maheswari*, A.S. Purnalakshimi
openaire   +1 more source

Data-Driven Sequence of Changes to Anatomical Brain Connectivity in Sporadic Alzheimer’s Disease

open access: yesFrontiers in Neurology, 2017
Model-based investigations of transneuronal spreading mechanisms in neurodegenerative diseases relate the pattern of pathology severity to the brain’s connectivity matrix, which reveals information about how pathology propagates through the connectivity ...
Neil P. Oxtoby   +7 more
doaj   +1 more source

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