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Table 1 Statistical indicators used to evaluate the performance of our sampled-based reconstruction method, for different cardinalities n of the known subset I. Results are shown together with the 95% confidence intervals (not shown whenever their difference affects the significant digits beyond the third one)

From: Network reconstruction via density sampling

WTW n=5 (CI 95%) n=10 (CI 95%) n=20 (CI 95%) n=50 (CI 95%) n=100 (CI 95%)
2000 - True positive rate 0.794 [0.772,0.816] 0.779 [0.765,0.793] 0.804 [0.796,0.812] 0.801 [0.797,0.806] 0.801 [0.799,0.804]
2000 - Specificity 0.700 [0.669,0.731] 0.742 [0.726,0.758] 0.721 [0.710,0.731] 0.728 [0.723,0.734] 0.729 [0.726,0.733]
2000 - Positive predicted value 0.796 [0.784,0.808] 0.810 [0.803,0.817] 0.799 [0.795,0.804] 0.802 [0.800,0.805] 0.802 [0.801,0.803]
2000 - Accuracy 0.755 [0.750,0.760] 0.763 [0.762,0.766] 0.769 [0.768,0.770] 0.771 0.771
2000 - Cosine similarity 0.712 0.712 0.712 0.712 0.712
e-MID      
1999 - True positive rate 0.641 [0.601,0.673] 0.633 [0.614,0.653] 0.633 [0.620,0.646] 0.637 [0.623,0.643] 0.636 [0.632,0.640]
1999 - Specificity 0.839 [0.823,0.856] 0.856 [0.848,0.864] 0.860 [0.854,0.865] 0.860 [0.857,0.863] 0.861 [0.859,0.862]
1999 - Positive predicted value 0.623 [0.611,0.637] 0.632 [0.625,0.639] 0.633 [0.628,0.638] 0.632 [0.623,0.635] 0.633 [0.631,0.634]
1999 - Accuracy 0.785 [0.780,0.790] 0.795 [0.794,0.796] 0.798 [0.797,0.799] 0.799 [0.798,0.800] 0.799
1999 - Cosine similarity 0.810 [0.805,0.815] 0.814 [0.811,0.816] 0.816 [0.815,0.817] 0.817 0.817
  1. The considered cardinalities n=5,10,20,50,100 correspond to percentages ranging from 2% to 50% of the total number of nodes. As reference values, the link density is c=0.578 for the WTW (in the year 2000) and c=0.274 for e-MID (in the year 1999)