Computes the exact frustration index of a signed network using linear programming

frustration_exact(g, ...)



signed network


additional parameters for the ompr solver


list containing the frustration index and the bipartition of nodes


The frustration index indicates the minimum number of edges whose removal results in a balance network. The function needs the following packages to be installed: ompr, ompr.roi,ROI, and ROI.plugin.glpk. The function Implements the AND model in Aref et al., 2020


Aref, Samin, Andrew J. Mason, and Mark C. Wilson. "Computing the line index of balance using linear programming optimisation." Optimization problems in graph theory. Springer, Cham, 2018. 65-84.

Aref, Samin, Andrew J. Mason, and Mark C. Wilson. "A modeling and computational study of the frustration index in signed networks." Networks 75.1 (2020): 95-110.


David Schoch