Research Article
A New Biobjective Model to Optimize Integrated Redundancy Allocation and Reliability-Centered Maintenance Problems in a System Using Metaheuristics
Table 5
Mean and standard deviation of the metrics for the different sizes of the test problems.
| Problem size | Time (seconds) | NNS | DM | MS | NSGA-II | MOPSO | MOFA | NSGA-II | MOPSO | MOFA | NSGA-II | MOPSO | MOFA | NSGA-II | MOPSO | MOFA |
| Small | 1.91 (0.26) | 0.78 (0.23) | 3.50 (1.16) | 22.9 (13.54) | 12.3 (3.45) | 3.3 (1.26) | 55.35 (30.22) | 60.69 (20.54) | 22.60 (11.72) | 0.01493 (0.0257) | 0.07999 (0.0542) | 0.04230 (0.0376) | Medium | 2.59 (0.21) | 1.45 (0.46) | 6.99 (2.05) | 12.85 (5.60) | 11.90 (3.80) | 3.85 (1.14) | 39.02 (17.32) | 65.79 (23.50) | 28.65 (12.71) | 0.0238 (0.0367) | 0.1562 (0.2004) | 0.0482 (0.0303) | Large | 31.49 (6.91) | 22.35 (9.36) | 91.25 (25.48) | 15.60 (6.22) | 12.84 (4.19) | 4.11 (1.49) | 51.35 (25.77) | 97.44 (30.93) | 34.35 (13.81) | 0.00419 (0.0048) | 0.14625 (0.0285) | 0.07408 (0.0418) |
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Numbers in the parentheses are standard deviation.
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