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Table 1.
Results of modified Six Hump Camel problem. Average over 50 optimizations (in parenthesis the Relative Standard Deviation (RSD) – 
).
| Results | Modified CMA-ES(λ, μ) | Death penalty CMA-ES(λ, μ) | Penalization CMA-ES(λ, μ) | Modified (1+1)-CMA-ES |
|---|---|---|---|---|
| Objective function (global optimum1) | −1.875 (0.80%) | −1.875 (0.89%) | −1.874 (0.88%) | −1.865 (0.88%) |
| Objective function (local optimum2) | −0.347 (0.75%) | −0.347 (0.84%) | −0.347 (0.79%) | −0.348 (0.85%) |
| Constraint functions | −4.72 × 10−4 (96%) | −2.57 × 10−4 (75%) | −6.43 × 10−4 (68%) | −4.86 × 10−4 (127%) |
| Number of objective function + constraint evaluations | 1211 (13%) | 1395 (12%) | 1618 (12%) | 781 (16%) |
| Percentage of convergence to the global minimum | 37% | 22% | 33% | 48% |
| Percentage of convergence to the local minimum | 63% | 78% | 67% | 52% |
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