Table 2

Brief overview of different types of network concepts.

Input Matrix

Type of Concept

Example: Connectivity


A - I

fundamental

Connectivityi(A - I) = ∑jiaij

ACF - I = CF CFτ - diag(CF2)

CF-based

Connectivityi(ACF - I) = CFijiCFj

ACF,app = CF CFτ

approximate CF-based

Connectivityi(ACF,app) = CFijCFj


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.

Dong and Horvath BMC Systems Biology 2007 1:24   doi:10.1186/1752-0509-1-24

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