A note on the interpretation of the efficiency centrality

被引：6
|
作者：
Sladek, Vladimir [1 ]
机构：
[1] Slovak Acad Sci, Ctr Glyc, Inst Chem, Bratislava 84538, Slovakia
来源：
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION | 2018年 / 61卷
关键词：
Efficiency; Network communication; Influential nodes; Complex networks;
D O I：
10.1016/j.cnsns.2018.02.012
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The interpretation of efficiency centrality is extended including nodes for which this metric acquires negative values. It is demonstrated that it happens either for nodes that are in shortest paths in which the nodes are the terminal nodes or if there are alternate shortest paths with similar length. It is shown that duplication of a node in a network leads to increase of the global efficiency, yet the efficiency centrality of the duplicated node is reduced by a factor of 1/2 with each subsequent replication. (C) 2018 Elsevier B.V. All rights reserved.
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页码：225 / 229
页数：5
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