Measures of betweenness in non-symmetric networks

Abstract

Betweenness has commonly been regarded as a centrality measure that can only be employed with symmetric networks. This paper shows that computation of absolute partial betweenness scores is unproblematic for non-symmetric networks as well, as long as ordered pairs of points are considered. The maximum absolute score is also derived, making it possible to compute “relative” betweenness scores which can be compared across non-symmetric networks.