Research Article
A Heuristic Algorithm for Constrained Multi-Source Location Problem with Closest Distance under Gauge: The Variational Inequality Approach
Table 4
Numerical results of location-allocation heuristic for CMLP.
| | | Algorithm 9 with Initial. | Algorithm 9 without Initial. | Iter.0 | Iter.0-PC | Iter. | Iter.-PC | CPU | Iter. | Iter.-PC | CPU |
| 100 | 2 | 2.83 | 73.33 | 1.20 | 289.00 | 0.4868 | 3.04 | 176.70 | 0.7018 | 4 | 3.61 | 99.88 | 1.29 | 176.80 | 0.2652 | 2.65 | 218.47 | 0.4992 | 6 | 4.55 | 99.05 | 1.53 | 121.75 | 0.1710 | 3.50 | 130.96 | 0.2580 | 8 | 3.60 | 126.23 | 1.82 | 149.37 | 0.2250 | 3.02 | 170.32 | 0.2836 | 10 | 3.84 | 138.61 | 2.26 | 257.51 | 0.3212 | 4.65 | 240.48 | 0.5118 |
| 200 | 2 | 3.24 | 81.22 | 1.24 | 1620.80 | 5.4664 | 3.49 | 1192.33 | 11.4596 | 4 | 4.01 | 112.96 | 1.71 | 447.08 | 1.2932 | 4.37 | 433.10 | 2.5694 | 6 | 4.65 | 141.10 | 2.23 | 262.97 | 0.7958 | 3.88 | 305.75 | 1.4538 | 8 | 4.26 | 130.25 | 2.65 | 246.80 | 0.6268 | 4.83 | 287.12 | 1.1734 | 10 | 4.67 | 171.65 | 2.68 | 281.40 | 0.5866 | 4.46 | 346.18 | 1.0232 |
| 500 | 2 | 4.03 | 82.35 | 1.63 | 1998.20 | 64.5468 | 4.26 | 1815.90 | 139.2036 | 4 | 4.66 | 104.28 | 2.27 | 1304.48 | 12.3492 | 5.25 | 1445.82 | 26.5510 | 6 | 5.27 | 133.55 | 2.62 | 727.13 | 5.3322 | 7.60 | 875.26 | 18.2956 | 8 | 7.60 | 169.97 | 2.84 | 549.60 | 2.8050 | 5.24 | 429.83 | 3.8626 | 10 | 5.42 | 187.95 | 3.47 | 508.13 | 2.3742 | 5.02 | 507.70 | 3.3946 |
| 1000 | 2 | 4.49 | 56.69 | 1.91 | 718.17 | 93.2321 | 5.63 | 1587.31 | 365.6085 | 4 | 4.81 | 80.60 | 2.10 | 1376.13 | 46.2636 | 5.49 | 1576.85 | 113.8830 | 6 | 6.84 | 96.75 | 3.43 | 683.35 | 16.1398 | 7.65 | 1344.53 | 57.7762 | 8 | 7.20 | 161.50 | 3.28 | 563.69 | 9.3570 | 6.06 | 760.93 | 20.0896 | 10 | 6.63 | 171.89 | 4.05 | 615.07 | 7.5880 | 6.47 | 700.53 | 12.9448 |
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