【摘 要】
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The study on how to identify influential spreaders in complex networks is becoming increas-ingly significant.Previous studies demonstrate that considering the shortest path length can improve the accuracy of identification,but which ignore the influence o
【机 构】
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School of Mathematical Science,Anhui University,Hefei 230601,China
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The study on how to identify influential spreaders in complex networks is becoming increas-ingly significant.Previous studies demonstrate that considering the shortest path length can improve the accuracy of identification,but which ignore the influence of the number of shortest paths.In many cases,even though the shortest path length of two nodes is rather larger,their interaction influence is also significant if the number of shortest paths between them is considerable.Inspired by this fact,the authors propose an improved centrality index(ICC)based on well-known closeness centrality and a semi-local iterative algorithm(semi-IA)to study the impact of the number of shortest paths on the identification of the influential spreaders.By comparing with several traditional centrality indices,such as degree centrality,k-shell decomposition,betweenness centrality and eigenvector centrality,the ex-perimental results on real networks indicate that the ICC index and semi-IA have a better performance,regardless of the identification capability or the resolution.
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