Differential evolution outside the box

• Importance of the constraint handling operator even for box-constrained problems. Use percentage solutions generated outside domain as performance measure . Re-purposing stochastic objective function f0 studying algorithmic effects. Popular EC algorithms generate significant amounts infeasible solutions. Distribution percentages is nontrivial. This paper investigates how often popular configurations Differential Evolution feasible domain. Following previous publications in field, we argue that what algorithm does with such and this has to happen important overall interpretation results. Based on observations therein, conclude significantly more than usually assumed by practitioners need undergo some sort ‘correction’ conform definition problem’s search A wide range considered study. Conclusions are made regarding effect components parameter settings have distribution proportions a series independent runs. Results shown study suggest strong dependencies between every aspect mentioned above. Further investigation required.