Before revision:  The latter are used first as fitness to estimate the unknown node degrees through a standard configuration model ; then, degrees and strengths are employed to calibrate an enhanced configuration model in order to generate ensembles of networks intended to represent the real system.
After revision:  The latter are used first as fitness to estimate the unknown node degrees through a standard configuration model . Then, these estimated degrees and the strengths are used to calibrate an enhanced configuration model in order to generate ensembles of networks intended to represent the real system.