کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
482088 | 1446124 | 2010 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Supply capacity acquisition and allocation with uncertain customer demands Supply capacity acquisition and allocation with uncertain customer demands](/preview/png/482088.png)
We study a class of capacity acquisition and assignment problems with stochastic customer demands often found in operations planning contexts. In this setting, a supplier utilizes a set of distinct facilities to satisfy the demands of different customers or markets. Our model simultaneously assigns customers to each facility and determines the best capacity level to operate or install at each facility. We propose a branch-and-price solution approach for this new class of stochastic assignment and capacity planning problems. For problem instances in which capacity levels must fall between some pre-specified limits, we offer a tailored solution approach that reduces solution time by nearly 80% over an alternative approach using a combination of commercial nonlinear optimization solvers. We have also developed a heuristic solution approach that consistently provides optimal or near-optimal solutions, where solutions within 0.01% of optimality are found on average without requiring a nonlinear optimization solver.
Journal: European Journal of Operational Research - Volume 204, Issue 2, 16 July 2010, Pages 263–273