Triadic closure in two-mode networks: Redefining the global and local clustering coefficients

Details Triadic closure in two-mode networks: Redefining the global and local clustering coefficients Triadic closure in two-mode networks: Redefining the global and local clustering coefficients

2010-06-04

arxiv.org/abs/1006.0887v3

Physics

Physics and Society

20 pages, 6 figures, 2 table

Scientific paper

As the vast majority of network measures are defined for one-mode networks, two-mode networks often have to be projected onto one-mode networks to be analyzed. A number of issues arise in this transformation process, especially when analyzing ties among nodes' contacts. For example, the values attained by the global and local clustering coefficients on projected random two-mode networks deviate from the expected values in corresponding classical one-mode networks. Moreover, both the local clustering coefficient and constraint (structural holes) are inversely associated to nodes' two-mode degree. To overcome these issues, this paper proposes redefinitions of the clustering coefficients for two-mode networks.

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