Categorical attribute based centrality: E-I and G-F centrality

Martin G. Everett, Stephen P. Borgatti

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

In a paper examining informal networks and organizational crisis, Krackhardt and Stern (1988) proposed a measure assessing the extent to which relations in a network were internal to a group as opposed to external. They called their measure the E-I index. The measure is now in wide use and is implemented in standard network packages such as UCINET (Borgatti et al., 2002). The measure is based on a partition-based degree centrality measure and as such can be extended to other centrality measures and group level data. We explore extensions to closeness, betweenness and eigenvector centrality, and show how to apply the technique to sets of subgroups that do not form a partition. In addition, the extension to betweenness suggests a linkage to the Gould and Fernandez brokerage measures, which we explore.

Original languageEnglish
Pages (from-to)562-569
Number of pages8
JournalSocial Networks
Volume34
Issue number4
DOIs
StatePublished - Oct 2012

Keywords

  • Brokerage roles
  • Categorical attributes
  • Centrality
  • E-I index

ASJC Scopus subject areas

  • Anthropology
  • Sociology and Political Science
  • General Social Sciences
  • General Psychology

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