Figure 4

Block structure in pair synergy networks and its predictability (A) The diagram illustrates a hypothetical synergy network. We hypothesize that the interaction type of a scientist pair is determined by the combination of their attributes. In such a case, we can infer the block structure from the known interactions and estimate the types of unknown interactions. (B and C) We measure the predictability by the area under the receiver operating characteristic curve (AUROC). (B) shows the AUROC for random removal as a function of removal fraction, and (C) displays the AUROC for novel interaction prediction as a function of the difference between the observation year that we use to detect the block structure and the predicted year. The shaded areas correspond to the 95% confidence interval for each discipline