Title
Heuristical top-k: fast estimation of centralities in complex networks.
Abstract
Centrality metrics have proven to be of a major interest when analyzing the structure of networks. Given modern-day network sizes, fast algorithms for estimating these metrics are needed. This paper proposes a computation framework (named Filter-Compute-Extract) that returns an estimate of the top-k most important nodes in a given network. We show that considerable savings in computation time can be achieved by first filtering the input network based on correlations between cheap and more costly centrality metrics. Running the costly metric on the smaller resulting filtered network yields significant gains in computation time. We examine the complexity improvement due to this heuristic for classic centrality measures, as well as experimental results on well-studied public networks.
Year
DOI
Venue
2014
10.1016/j.ipl.2014.03.006
Information Processing Letters
Keywords
Field
DocType
Information retrieval,Network analysis,Centralities,Complex networks
Data mining,Heuristic,Computer science,Centrality,Filter (signal processing),Complex network,Network analysis,Computation
Journal
Volume
Issue
ISSN
114
8
0020-0190
Citations 
PageRank 
References 
3
0.42
10
Authors
3
Name
Order
Citations
PageRank
Erwan Le Merrer132223.58
Nicolas Le Scouarnec220111.91
Gilles Trédan310011.32