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Table 2 Brief overview of different types of network concepts.

From: Understanding network concepts in modules

Input Matrix Type of Concept Example: Connectivity
A - I fundamental Connectivity i (A - I) = ∑jia ij
A CF - I = CF CFτ- diag(CF2) CF-based Connectivity i (A CF - I) = CF i jiCF j
ACF,app= CF CFτ approximate CF-based Connectivity i (A CF , app ) = CF i j CF j
  1. A network concept arises by evaluating a network concept function on a special type of input matrix. We assume that the diagonal elements of the matrix A - I are 0.