Research Article
The Synchronized and Integrated Two-Level Lot Sizing and Scheduling Problem: Evaluating the Generalized Mathematical Model
Table 7
AMPL/CPLEX results for the set of instances with
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| Comb. | | | Opt. | Gap(%) | CPU | Opt. | Gap(%) | CPU |
| | 10 | 0.72 | 10.64 | 9 | 0.13 | 535.17 | | 4 | 3.38 | 2177.73 | 3 | 5.00 | 2814.48 | | 5 | 1.84 | 2249.24 | 2 | 4.55 | 3159.17 | | 9 | 0.20 | 461.35 | 7 | 0.15 | 1808.17 | | 3 | 4.72 | 3076.43 | 1 | 3.88 | 3276.78 | | 2 | 3.31 | 3208.99 | 0 | 6.52 | 3600.45 | | 7 | 0.33 | 1150.23 | 4 | 0.57 | 2922.49 | | 1 | 4.70 | 3257.73 | 0 | 4.97 | 3600.33 | | 2 | 5.55 | 2963.03 | 0 | 5.06 | 3600.32 |
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