Fig. 2

Comparison of link-prediction algorithms when applied to the directed version of the WTW (top), the DIN (middle) and e-MID (bottom). Left panel: evolution of precision; middle panel: evolution of accuracy; right panel: evolution of AUC. Our entropy-based approach to link-prediction performs better than other algorithms, across the vast majority of temporal snapshots. Notice that while PA-I implements the recipe \(s_{ij}^{PA'}=k_{i}^{tot}\cdot k_{j}^{tot}\), PA-II implements the recipe \(s_{ij}^{PA''}\propto k_{i}^{out}\cdot k_{j}^{in}\)