The paper presents a new balanced selection operator applied to the proposed Balanced Non-dominated Tournament Genetic Algorithm (B-NTGA) that actively uses archive to solve multi- and many-objective NP-hard combinatorial optimization problems with constraints. The primary motivation is to make B-NTGA more efficient in exploring Pareto Front Approximation (PFa), focusing on 'gaps' and reducing some PFa regions' sampling too frequently. Such a balancing mechanism allows B-NTGA to be more adaptive and focus on less explored PFa regions. The proposed B-NTGA is investigated on two benchmark multi- and many-objective optimization real-world problems, like Thief Traveling Problem and Multi-Skill Resource-Constrained Project Scheduling Problem. The results of experiments show that B-NTGA has a higher efficiency and better performance than state-of-the-art methods.
翻译:本文提出一种新的平衡选择算子,应用于所提出的平衡非支配锦标赛遗传算法(B-NTGA),该算法主动利用归档集来求解带约束的多目标与超多目标NP难组合优化问题。其主要动机是使B-NTGA能更高效地探索帕累托前沿近似解集,重点关注解集中的“间隙”区域,并减少对某些帕累托前沿近似区域的过度频繁采样。这种平衡机制使B-NTGA更具自适应性,并能聚焦于较少被探索的帕累托前沿近似区域。所提出的B-NTGA在两个基准多目标与超多目标优化实际问题上进行了验证,例如窃贼旅行问题与多技能资源受限项目调度问题。实验结果表明,相较于现有先进方法,B-NTGA具有更高的效率与更优的性能。