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Identifying sets of key players in a social network

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  • Stephen P. Borgatti

    (Boston College)

Abstract

A procedure is described for finding sets of key players in a social network. A key assumption is that the optimal selection of key players depends on what they are needed for. Accordingly, two generic goals are articulated, called KPP-POS and KPP-NEG. KPP-POS is defined as the identification of key players for the purpose of optimally diffusing something through the network by using the key players as seeds. KPP-NEG is defined as the identification of key players for the purpose of disrupting or fragmenting the network by removing the key nodes. It is found that off-the-shelf centrality measures are not optimal for solving either generic problem, and therefore new measures are presented.

Suggested Citation

  • Stephen P. Borgatti, 2006. "Identifying sets of key players in a social network," Computational and Mathematical Organization Theory, Springer, vol. 12(1), pages 21-34, April.
    • Handle: RePEc:spr:comaot:v:12:y:2006:i:1:d:10.1007_s10588-006-7084-x
    DOI: 10.1007/s10588-006-7084-x
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