scholarly journals Solving flow shop scheduling problem based on improved non-dominated genetic algorithm

2021 ◽  
Vol 2078 (1) ◽  
pp. 012005
Author(s):  
Tiankui Wang ◽  
Chunlei Ji ◽  
Yuanfeng Hao ◽  
Jianli He

Abstract Aiming at the multi-objective problem of flow workshop problem, a multi-objective optimization model was constructed and an improved non-dominated sorting genetic algorithm was proposed. Firstly, aiming at these problems, this paper proposes a two-stage chromosome coding method to adapt to the new production scenarios. Secondly, a new adaptive method is proposed to improve the convergence speed and the superiority of Pareto solution set. Finally, simulation results show that the optimality of the improved non-dominated sorting genetic algorithm is improved greatly.

Author(s):  
Hela Boukef ◽  
Mohamed Benrejeb ◽  
Pierre Borne

A new genetic algorithm coding is proposed in this paper to solve flowshop scheduling problems. To show the efficiency of the considered approach, two examples, in pharmaceutical and agro-food industries are considered with minimization of different costs related to each problem as a scope. Multi-objective optimization is thus, used and its performances proved.


2014 ◽  
Vol 1082 ◽  
pp. 529-534
Author(s):  
Zheng Ying Lin ◽  
Wei Zhang

Due to several mutual conflicting optimized objectives in the hybrid flow shop scheduling problem, its optimized model, including three objectives of make-span, flow-time and tardiness, was firstly set up, instead of the single optimized objective. Furthermore, in order to improve the optimized efficiency and parallelism, after comparing the normal multi-objective optimized methods, an improved NSGA-II algorithm with external archive strategy was proposed. Finally, taking a piston production line as example, its performance was tested. The result showed that the multi-objective optimization of hybrid flow shop scheduling based on improved NSGA-II provided managers with a set of feasible solutions for selection in accordance to their own preference. Therefore the decision could be made more scientific and efficient, and thus brings to the factory more economic benefits.


2020 ◽  
Vol 93 ◽  
pp. 106343 ◽  
Author(s):  
Yuyan Han ◽  
Junqing Li ◽  
Hongyan Sang ◽  
Yiping Liu ◽  
Kaizhou Gao ◽  
...  

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