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High-Dimensional Robust Multi-Objective Optimization for Order Scheduling: A Decision Variable Classification Approach
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DOI：10.1109/TII.2018.2836189.png)
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Abstract
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This paper tackles the high-dimensional robust order scheduling problem. A multi-objective evolutionary algorithm called constrained nondominated sorting differential evolution based on decision variable classification is developed to search for robust order schedules. The decision variables are classified into highly and weakly robustness-related variables according to their contributions to the robustness of candidate solutions. The experimental results reveal that the performance of robust evolutionary optimization can be greatly improved via analyzing the properties of decision variables and then decomposing the high-dimensional robust optimization problem. It is also unveiled that the order scheduling is greatly affected by the uncertain daily production quantities. The robust order schedules are able to provide more information on earliness/tardiness of the orders, which enhances the flexibility of the production.
Keywords:
Decision variable classification (DVC)
evolutionary multi-objective optimization
high-dimensional optimization
robust evolutionary optimization
robust order scheduling
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