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- W1503648602 abstract "Recently MOEA/D (multi-objective evolutionary algorithm based on decomposition) was proposed as a high-performance EMO (evolutionary multi-objective optimization) algorithm. MOEA/D has high search ability as well as high computational efficiency. Whereas other EMO algorithms usually do not work well on many-objective problems with four or more objectives, MOEA/D can properly handle them. This is because its scalarizing function-based fitness evaluation scheme can generate an appropriate selection pressure toward the Pareto front without severely increasing the computation load. MOEA/D can also search for well-distributed solutions along the Pareto front using a number of weight vectors with different directions in scalarizing functions. Currently MOEA/D seems to be one of the best choices for multi-objective optimization in various application fields. In this paper, we examine its performance on multi-objective problems with highly correlated objectives. Similar objectives to existing ones are added to two-objective test problems in computational experiments. Experimental results on multi-objective knapsack problems show that the inclusion of similar objectives severely degrades the performance of MOEA/D while it has almost no negative effects on NSGA-II and SPEA2. We also visually examine such an undesirable behavior of MOEA/D using many-objective test problems with two decision variables." @default.
- W1503648602 created "2016-06-24" @default.
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- W1503648602 date "2011-01-01" @default.
- W1503648602 modified "2023-10-16" @default.
- W1503648602 title "Effects of the Existence of Highly Correlated Objectives on the Behavior of MOEA/D" @default.
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- W1503648602 doi "https://doi.org/10.1007/978-3-642-19893-9_12" @default.
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