Results 11 to 20 of about 41,287 (259)

Generalization of Relative Change in a Centrality Measure to Identify Vital Nodes in Complex Networks

open access: yesIEEE Access, 2023
Identifying vital nodes is important in disease research, spreading rumors, viral marketing, and drug development. The vital nodes in any network are used to spread information as widely as possible.
Koduru Hajarathaiah   +4 more
doaj   +1 more source

Strategic Evasion of Centrality Measures [PDF]

open access: yesInternational Joint Conference on Autonomous Agents and Multiagent Systems, 2021
Among the most fundamental tools for social network analysis are centrality measures, which quantify the importance of every node in the network. This centrality analysis typically disregards the possibility that the network may have been deliberately manipulated to mislead the analysis. To solve this problem, a recent study attempted to understand how
Waniek, Marcin   +5 more
openaire   +4 more sources

Graph Theory Approach to COVID-19 Transmission by Municipalities and Age Groups

open access: yesMathematical and Computational Applications, 2022
The COVID-19 pandemic remains a global problem that affects the health of millions of people and the world economy. Identifying how the movement of people between regions of the world, countries, and municipalities and how the close contact between ...
Pedro Machado   +4 more
doaj   +1 more source

An Analysis of Centrality’s Features as a New Measure for Network Analysis, Risk Measurement & Portfolio Selection [PDF]

open access: yesتحقیقات مالی, 2021
Objective: In network theory, centrality is a measure to estimate importance and influence of a special node to the whole network structure. The aim of this research is to investigate the characteristics of stock centrality and its reliability in risk ...
Saeed Fallahpour, Ali Ghahramani
doaj   +1 more source

Comparison-based centrality measures [PDF]

open access: yesInternational Journal of Data Science and Analytics, 2021
AbstractRecently, learning only from ordinal information of the type “itemxis closer to itemythan to itemz” has received increasing attention in the machine learning community. Such triplet comparisons are particularly well suited for learning from crowdsourced human intelligence tasks, in which workers make statements about the relative distances in a
Luca Rendsburg, Damien Garreau
openaire   +2 more sources

Interplay Between Hierarchy and Centrality in Complex Networks

open access: yesIEEE Access, 2020
Hierarchy and centrality are two popular notions used to characterize the importance of entities in complex systems. Indeed, many complex systems exhibit a natural hierarchical structure, and centrality is a fundamental characteristic allowing to ...
Stephany Rajeh   +3 more
doaj   +1 more source

P-centrality: An Improvement for Information Diffusion Maximization in Weighted Social Networks [PDF]

open access: yesComputer and Knowledge Engineering, 2023
Online social networks (OSNs) such as Facebook, Twitter, Instagram, etc. have attracted many users all around the world. Based on the centrality concept, many methods are proposed in order to find influential users in an online social network.
Najva Hafizi   +5 more
doaj   +1 more source

The measurement of Central Corneal Thickness

open access: yesromanian journal of ophthalmology, 2023
We aimed to compare five different devices that measure Central Corneal Thickness. The Central Corneal Thickness (CCT) is an important parameter in ophthalmology. It is involved in the management of various eye conditions such as: glaucoma, keratoconus, contact lens wearing, corneal dystrophies, refractive surgery and keratoplasty.
Camburu, Georgiana   +3 more
openaire   +2 more sources

A COMPARISON OF CENTRALITY MEASURES IN SUSTAINABLE DEVELOPMENT GOALS

open access: yesBarekeng, 2020
The Millennium Development Goals (MDGs), which began in 2000 with 8 goal points, have not been able to solve the global problems. The MDGs were developed into Sustainable Development Goals (SDGs) in 2015 with 17 targeted goal points achieved in 2030 ...
Sena Ariesandy   +2 more
doaj   +1 more source

Dynamic centrality measures for cattle trade networks

open access: yesApplied Network Science, 2021
We study network centrality measures that take into account the specific structure of networks with time-stamped edges. In particular, we explore how such measures can be used to identify nodes most relevant for the spread of epidemics on directed ...
Patrick Hoscheit   +2 more
doaj   +1 more source

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