Research Article
An Integrated Multiechelon Logistics Model with Uncertain Delivery Lead Time and Quality Unreliability
Table 6
Comparisons between three ways of 15-echelon inventory model.
| | | ACA | | PSO | | Lingo | | Echelon | | | | | | | | | | | | | | |
| | 1 | 1 | 0.0147 | — | — | | 1 | 0.0147 | — | — | | 1 | 0.0147 | — | — | | 2 | 1 | 0.00987 | 11 | 1 | | 1 | 0.00987 | 11 | 1 | | 1 | 0.00987 | 11 | 1 | | 3 | 1 | 0.00889 | 13 | 1 | | 1 | 0.00889 | 13 | 1 | | 1 | 0.00889 | 13 | 1 | | 4 | 1 | 0.01184 | 11 | 1 | | 1 | 0.01184 | 11 | 1 | | 1 | 0.01184 | 11 | 1 | | 5 | 1 | 0.01571 | 8 | 1 | | 1 | 0.01571 | 8 | 1 | | 1 | 0.01571 | 8 | 1 | | 6 | 1 | 0.01378 | 5 | 1 | | 1 | 0.01378 | 5 | 1 | | 1 | 0.01378 | 5 | 1 | | 7 | 1 | 0.01451 | 5 | 1 | | 1 | 0.01451 | 5 | 1 | | 1 | 0.01451 | 5 | 1 | | 8 | 1 | 0.01287 | 5 | 1 | | 1 | 0.01287 | 5 | 1 | | 1 | 0.01287 | 5 | 1 | | 9 | 1 | 0.0154 | 7 | 1 | | 1 | 0.0154 | 7 | 1 | | 1 | 0.0154 | 7 | 1 | | 10 | 1 | 0.01432 | 9 | 1 | | 1 | 0.01432 | 9 | 1 | | 1 | 0.01432 | 9 | 1 | | 11 | 1 | 0.01352 | 7 | 1 | | 1 | 0.01352 | 7 | 1 | | 1 | 0.01352 | 7 | 1 | | 12 | 1 | 0.0162 | 8 | 1 | | 1 | 0.0162 | 8 | 1 | | 1 | 0.0162 | 8 | 1 | | 13 | 1 | 0.01571 | 10 | 1 | | 1 | 0.01571 | 10 | 1 | | 1 | 0.01571 | 10 | 1 | | 14 | 1 | 0.01611 | 5 | 1 | | 1 | 0.01611 | 5 | 1 | | 1 | 0.01611 | 5 | 1 | | 15 | — | — | 5 | 1 | | — | — | 5 | 1 | | — | — | 5 | 1 | | Optimal cost ($) | 231254 | | 231254 | | 231254 | | CPU time (s) | 1.725 | | 6.621 | | 58.215 | | Average iterations | 700 | | 2883 | | 8241 |
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