Model 4

Model 5

Model 9

Model 10

Log in-degree

0.686* (0.009)

0.510* (0.009)

0.724* (0.009)

0.550* (0.010)

Has degree

−0.561* (0.193)

−1.650* (0.238)

9.612* (0.367)

7.766* (0.460)

Reciprocal

8.789* (0.301)

8.588* (0.311)

12.250* (0.555)

12.106* (0.579)

FoF

3.973* (0.049)

3.794* (0.052)

2 hops

6.420* (0.196)

6.550* (0.257)

3 hops

2.966* (0.192)

3.246* (0.253)

4 hops

0.801* (0.195)

1.085* (0.255)

5 hops

−0.295 (0.221)

−0.067 (0.276)

³6 hops

−1.030* (0.278)

−0.878* (0.328)

Link recency

−0.171* (0.004)

−0.173* (0.004)

Log-likelihood

−10,847

−9926

−9525

−8676

Test accuracy

0.8405

0.843

0.867

0.8755