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Results of Wilcoxon signed-rank test at α = 0.05
| Comparison | R+ | R− | Z-value | p-value | Null hypothesis |
|---|---|---|---|---|---|
| MBO-ANN versus ACO-ANN | 204 | 6 | −3.695 | 0.00022 | rejected |
| MBO-ANN versus ABC-ANN | 207 | 3 | −3.807 | 0.00014 | rejected |
| MBO-ANN versus BBO-ANN | 174 | 36 | −2.576 | 0.00988 | rejected |
| MBO-ANN versus DE-ANN | 204 | 6 | −3.695 | 0.00022 | rejected |
| MBO-ANN versus SGA-ANN | 207 | 3 | −3.807 | 0.00014 | rejected |
