Figure 2
From: Active learning for human protein-protein interaction prediction
Availability of each of the features for interacting (positive) pairs and random pairs. X-axis shows the 27 features that were considered by Qi et al [25] for PPI prediction in human. For each feature, along Y-axis it is shown what percentage of the positive and random pairs have that feature value available. For instance, 9th feature is available for only 23% of random pairs, but it is available for nearly 90% of positive pairs.