Research Article
Migrating Birds Optimization for the Seaside Problems at Maritime Container Terminals
Table 2
Computational results for a representative set of large-size instances proposed by Cordeau et al. [
5].
| Instance | CPLEX | PSO | MBO | | | id | Opt. | (s) | Obj. | Gap (%) | (s) | Obj. | Gap (%) | (s) | (%) |
| 60 | 13 | 1 | 1409 | 17.92 | 1409 | 0.00 | 11.11 | 1411 | 0.14 | 3.42 | | 2 | 1261 | 15.77 | 1261 | 0.00 | 7.89 | 1261 | 0.00 | 3.52 | | 3 | 1129 | 13.54 | 1129 | 0.00 | 7.48 | 1129 | 0.00 | 3.63 | | 4 | 1302 | 14.48 | 1302 | 0.00 | 6.03 | 1302 | 0.00 | 3.81 | | 5 | 1207 | 17.21 | 1207 | 0.00 | 5.84 | 1207 | 0.00 | 3.13 | | 6 | 1261 | 13.85 | 1261 | 0.00 | 7.67 | 1261 | 0.00 | 3.46 | | 7 | 1279 | 14.60 | 1279 | 0.00 | 7.5 | 1279 | 0.00 | 3.05 | | 8 | 1299 | 14.21 | 1299 | 0.00 | 9.94 | 1299 | 0.00 | 3.30 | | 9 | 1444 | 16.51 | 1444 | 0.00 | 4.25 | 1444 | 0.00 | 3.48 | | 10 | 1213 | 14.16 | 1213 | 0.00 | 5.2 | 1213 | 0.00 | 3.40 | |
| Average | 1280.40 | 15.23 | 1280.40 | 0.00 | 7.29 | 1280.60 | 0.01 | 3.42 | |
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