Lobby index as a network centrality measure
Abstract
We study the lobby index (l-index for short) as a local node centrality measure for complex networks. The l-inde is compared with degree (a local measure), betweenness and Eigenvector centralities (two global measures) in the case of biological network (Yeast interaction protein-protein network) and a linguistic network (Moby Thesaurus II). In both networks, the l-index has poor correlation with betweenness but correlates with degree and Eigenvector. Being a local measure, one can take advantage by using the l-index because it carries more information about its neighbors when compared with degree centrality, indeed it requires less time to compute when compared with Eigenvector centrality. Results suggests that l-index produces better results than degree and Eigenvector measures for ranking purposes, becoming suitable as a tool to perform this task.
Keywords
Cite
@article{arxiv.1304.7638,
title = {Lobby index as a network centrality measure},
author = {Monica G. Campiteli and Adriano J. Holanda and Leonardo D. H. Soares and Paulo R. C. Soles and Osame Kinouchi},
journal= {arXiv preprint arXiv:1304.7638},
year = {2015}
}
Comments
11 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:1005.4803