scholarly journals Solving a class of discrete event simulation-based optimization problems using “optimality in probability”

2016 ◽  
Author(s):  
Jianfeng Mao ◽  
Christos G. Cassandras
Keyword(s):  
Discrete Event Simulation ◽  
Optimization Problems ◽  
Discrete Event ◽  
Event Simulation ◽  
Simulation Based ◽  
Simulation Based Optimization

scholarly journals Evaluation of Simulation-Based Optimization in Grafting Labor Allocation

2018 ◽  
Vol 34 (3) ◽  
pp. 479-489 ◽  
Author(s):  
Sara Masoud ◽  
Young-Jun Son ◽  
Chieri Kubota ◽  
Russell Tronstad
Keyword(s):  
Discrete Event Simulation ◽  
Discrete Event ◽  
Simulation Models ◽  
Resource Planning ◽  
Labor Management ◽  
Labor Allocation ◽  
Event Simulation ◽  
Simulation Based ◽  
Simulation Based Optimization ◽  
Optimal Resource

Abstract.Vegetable grafting is a labor-intensive operation with many management decisions. Labor management and resource planning are critical allocations in grafting nurseries, yet optimization is challenging due to the dynamic nature of workers’ performance in vegetable seedling propagation. To this end, we developed a simulation-based optimization framework for labor management to optimize labor allocation. This approach was evaluated by comparing its result with those suggested by selected domain experts (a plant scientist and a nursery manager). Furthermore, the simulation models were validated with a dataset from a developing tomato grafting company. Simulation-based optimization is demonstrated as an effective approach to find the optimal/near optimal labor allocation for horticultural nurseries, where discrete event simulation is used to represent the dynamics of the grafting work environment and meta-heuristics are used to devise optimal/ near optimal resource allocation strategies. Results reveal that a potential annual savings between $2,510 (0.6%) and $97,388 (20%) can be achieved for a grafting facility of 6 million plants per year. Keywords: Simulation-based optimization, Grafting, Labor allocation, Discrete event simulation.

Launch Vehicle Economic Evaluation Using a Discrete Event Simulation Based Methodology

Space 2005 ◽  
2005 ◽  
Author(s):  
Roger Lepsch ◽  
Trina Chytka ◽  
Wade Morris ◽  
John Reeves ◽  
G Rabadi
Keyword(s):  
Economic Evaluation ◽  
Discrete Event Simulation ◽  
Discrete Event ◽  
Launch Vehicle ◽  
Event Simulation ◽  
Simulation Based
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