Different networks present different levels of quality for protein function prediction. To investigate whether MNet can assign a large weight to a network that can produce accurate predictions, and assign a small weight to a network that poorly predicts protein functions, we recorded the results of MNet (see Eq. (1)) for individual networks and the corresponding weights (αm). We also recorded the results and the weights of SW and ProMK on individual networks. For a fair comparison and a better visualization, we scale these weights in the interval [0, 1] as follows: αm/∑i=1Mαm.