Figure 2
From: Protein Ranking by Semi-Supervised Network Propagation
Semi-supervised learning for a ranking problem. (A) The query is a single point in input space, and the remaining points comprise the database one wishes to rank. (B) The ranking induced by Euclidean distance. Marking sizes are proportional to the ranking of each point. (C) The ideal ranking. Clearly, to find the optimal ranking we need to find the cluster/manifold structure in the data.