Novel integer L-shaped method for parallel machine scheduling problem under uncertain sequence-dependent setups

Fan, Zhengyang; Ji, Ran; Chang, Shi-Chung; Chang, Kuo-Chu

doi:10.1016/j.cie.2024.110282

Computers & Industrial Engineering

2024

DOI: 10.1016/j.cie.2024.110282

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Novel integer L-shaped method for parallel machine scheduling problem under uncertain sequence-dependent setups

Zhengyang Fan,

Ran Ji,

Shi-Chung Chang

et al.

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Optimizing Well Placement for Sustainable Irrigation: A Two-Stage Stochastic Mixed Integer Programming Approach

Li,

Finsa,

Laskey

et al. 2024

Water

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Utilizing groundwater offers a promising solution to alleviate water stress in Ethiopia, providing a dependable and sustainable water source, particularly in regions with limited or unreliable surface water availability. However, effective decision-making regarding well drilling and placement is essential to maximize groundwater resource potential, enhancing agricultural productivity, reducing hunger, and bolstering food security in Ethiopia. This study concentrates on the development of two-stage stochastic mixed integer programming (SMIP) models to optimize well placement for sustainable agricultural irrigation, considering uncertain demand scenarios. Additionally, a deterministic mixed integer programming model is formulated for comparison with the two-stage SMIP. Experiments are conducted to explore various demand scenario distributions, revealing that the optimized total cost for the two-stage SMIP generally exceeds that of a deterministic setting, aligning with the two-stage SMIP’s focus on long-term benefits. Moreover, slight differences are observed in well layouts under different assumption scenarios. The study also examines the impact of selected parameters, such as fixed construction costs, per-meter drilling costs, and demand scenarios. The out-of-sample performance shows that the stochastic model is more flexible and resilient, with 11% and 4% lower costs than deterministic cases 1 and 3, respectively. This flexibility provides a more robust long-term strategy for well placement and resource allocation in groundwater management.

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Optimizing Well Placement for Sustainable Irrigation: A Two-Stage Stochastic Mixed Integer Programming Approach

Li,

Finsa,

Laskey

et al. 2024

Water

View full text Add to dashboard Cite

show abstract

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Novel integer L-shaped method for parallel machine scheduling problem under uncertain sequence-dependent setups

Cited by 1 publication

References 55 publications

Optimizing Well Placement for Sustainable Irrigation: A Two-Stage Stochastic Mixed Integer Programming Approach

Optimizing Well Placement for Sustainable Irrigation: A Two-Stage Stochastic Mixed Integer Programming Approach

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