Figure 3

Pareto-Optimal Front. The two axes of the objectives form the objective space, which is two dimensional for the problems described in this paper. The positions of solutions on the Pareto-optimal front are shown in blue, connected by dashed pink. Each Pareto-optimal solution dominates all solutions to its lower left; for example, point A dominates points B-E, as bounded by the dashed black lines. Non-dominated solutions are shown as turquoise circles; dominated solutions are shown as olive circles. Strength is shown adjacent to each solution. Raw fitness is shown in parentheses. Because no raw fitnesses are identical, other than those on the front, density would have no impact on survival for this population as long as the archive size was at least five. Diamonds indicate positions in objective space of solutions not yet discovered by the algorithm, but that would be non-dominated once discovered.