A new centrality measure in dense networks based on two-way random walk betweenness

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Title: A new centrality measure in dense networks based on two-way random walk betweenness
Authors: Curado, Manuel | Rodriguez, Rocio | Tortosa, Leandro | Vicent, Jose F.
Research Group/s: Análisis y Visualización de Datos en Redes (ANVIDA)
Center, Department or Service: Universidad de Alicante. Departamento de Ciencia de la Computación e Inteligencia Artificial
Keywords: Centrality measure | Betweenness centrality | Random walks | Densification
Knowledge Area: Ciencia de la Computación e Inteligencia Artificial
Issue Date: 1-Jan-2022
Publisher: Elsevier
Citation: Applied Mathematics and Computation. 2022, 412: 126560. https://doi.org/10.1016/j.amc.2021.126560
Abstract: Many scholars have tried to address the identification of critical nodes in complex networks from different perspectives. For instance, by means of the betweenness methods based on shortest paths and random walk, it is possible to measure the global importance of a node as an intermediate node. All these metrics have the common characteristic of not taking into account the density of the clusters. In this paper, we apply an analysis of network centrality, from a perspective oriented to ranking nodes, reinforcing dense communities using evaluating graphs using a two-trip transition probability matrix. We define a new centrality measure based on random walk betweenness. We study and analyse the new metric as a betweenness centrality measure with common characteristics with Pagerank, presenting through its practical implementation in some examples based on synthetic, and testing with well-known real-world networks. This method helps to increase the ranking of nodes belonging to dense clusters with a higher average degree than the remaining clusters, and it can detect the weakness of a network comparing it with the classical betweenness centrality measure.
URI: http://hdl.handle.net/10045/117407
ISSN: 0096-3003 (Print) | 1873-5649 (Online)
DOI: 10.1016/j.amc.2021.126560
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2021 Elsevier Inc.
Peer Review: si
Publisher version: https://doi.org/10.1016/j.amc.2021.126560
Appears in Collections:INV - ANVIDA - Artículos de Revistas

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