Results 21 to 30 of about 272,557 (244)

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

X-index: A novel flow-based locational measure for quantifying centrality

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
The centrality of a place reflects its relative importance in serving other places, and quantifying centrality is a prerequisite for assessing the urban spatial structure and facilitates policy-making of sustainable urban development.
Xi Wang   +7 more
doaj   +1 more source

Scale-dependent measure of network centrality from diffusion dynamics

open access: yesPhysical Review Research, 2020
Classic measures of graph centrality capture distinct aspects of node importance, from the local (e.g., degree) to the global (e.g., closeness). Here we exploit the connection between diffusion and geometry to introduce a multiscale centrality measure. A
Alexis Arnaudon   +2 more
doaj   +1 more source

A measure of centrality in cyclic diffusion processes: Walk-betweenness.

open access: yesPLoS ONE, 2021
Unlike many traditional measures of centrality based on paths that do not allow any repeated nodes or lines, we propose a new measure of centrality based on walks, walk-betweenness, that allows any number of repeated nodes or lines.
Yoosik Youm, Byungkyu Lee, Junsol Kim
doaj   +1 more source

A study of the stability of information and telecommunication networks under conditions of stochastic percolation of nodes [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
In-depth studies of the topological properties of information and telecommunication networks contribute to the understanding of their functional capabilities, including stability.
Fedor L. Shuvaev, Kirill I. Vitenzon
doaj   +1 more source

Message passing optimization of Harmonic Influence Centrality [PDF]

open access: yes, 2014
This paper proposes a new measure of node centrality in social networks, the Harmonic Influence Centrality, which emerges naturally in the study of social influence over networks.
Fagnani, Fabio   +3 more
core   +4 more sources

Functional centrality in graphs [PDF]

open access: yes, 2006
In this paper we introduce the functional centrality as a generalization of the subgraph centrality. We propose a general method for characterizing nodes in the graph according to the number of closed walks starting and ending at the node.
A. Gutiérrez   +5 more
core   +2 more sources

A Time-Ordered Aggregation Model-Based Centrality Metric for Mobile Social Networks

open access: yesIEEE Access, 2018
How to measure the centrality of nodes is a significant problem in mobile social networks (MSNs). Current studies in MSNs mainly focus on measuring the centrality of nodes in a certain time interval based on the static graph that do not change over time.
Huan Zhou   +5 more
doaj   +1 more source

Interlocking directorates and different power forms: An explorative analysis in the Italian context [PDF]

open access: yes, 2018
The purpose of the present paper is twofold. The first is to update the contribution by Drago et al. (2011) about cross-shareholdings and interlocking directorates in Italian listed companies (FTSE MIB) to 31 December 2016 and to reinforce theory of ...
Di, Franco   +2 more
core   +1 more source

Knotty-centrality: finding the connective core of a complex network. [PDF]

open access: yesPLoS ONE, 2012
A network measure called knotty-centrality is defined that quantifies the extent to which a given subset of a graph's nodes constitutes a densely intra-connected topologically central connective core. Using this measure, the knotty centre of a network is
Murray Shanahan, Mark Wildie
doaj   +1 more source

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