Figure 4
Three Ranking Methods. Illustration of three layer ranking algorithms for 15 points. (a) Fifteen data points (a-o) on a two-dimensional space. The subscripts represent the layers for which the point is assigned by the three algorithms. For example, the subscript 865 indicates that point n is assigned to 8th, 6th and 5th layers for (b) Point-admissible algorithm, (c) Convex algorithm, and (d) Pareto algorithm respectively.