Research Article
Improved Particle Swarm Optimization with a Collective Local Unimodal Search for Continuous Optimization Problems
Table 19
Wilcoxon signed rank test on mean fitness obtained by RIW-PSO and
-PSO
CLUS for the test problems.
| Measurement | Scaled problems | Nonscaled problems | Dim = 10 | Dim = 20 | Dim = 30 |
| -PSOCLUS RIW-PSO | 13 | 11 | 12 | 3 | -PSOCLUS RIW-PSO | 0 | 2 | 2 | 0 | -PSOCLUS RIW-PSO | 1 | 1 | 0 | 4 | | −3.190 | −2.274 | −2.606 | −1.604 | value | 0.001 | 0.023 | 0.009 | 0.190 | | 0.600 | 0.430 | 0.490 | — | Median | | | | | RIW-PSO | 0.847 | 0.144 | 0.272 | −1.000 | | 0.000 | 0.000 | 0.000 | −1.000 |
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