Research Article
A Novel Hybrid Bat Algorithm with Harmony Search for Global Numerical Optimization
Table 2
Properties of benchmark functions; lb denotes lower bound, ub denotes upper bound, and opt denotes optimum point.
| No. | Function | lb | ub | opt | Continuity | Modality |
| F01 | Ackley | −32.768 | 32.768 | 0 | Continuous | Multimodal | F02 | Fletcher-Powell | | π | 0 | Continuous | Multimodal | F03 | Griewank | −600 | 600 | 0 | Continuous | Multimodal | F04 | Penalty #1 | −50 | 50 | 0 | Continuous | Multimodal | F05 | Penalty #2 | −50 | 50 | 0 | Continuous | Multimodal | F06 | Quartic with noise | −1.28 | 1.28 | 1 | Continuous | Multimodal | F07 | Rastrigin | −5.12 | 5.12 | 0 | Continuous | Multimodal | F08 | Rosenbrock | −2.048 | 2.048 | 0 | Continuous | Unimodal | F09 | Schwefel 2.26 | −512 | 512 | 0 | Continuous | Multimodal | F10 | Schwefel 1.2 | −100 | 100 | 0 | Continuous | Unimodal | F11 | Schwefel 2.22 | −10 | 10 | 0 | Continuous | Unimodal | F12 | Schwefel 2.21 | −100 | 100 | 0 | Continuous | Unimodal | F13 | Sphere | −5.12 | 5.12 | 0 | Continuous | Unimodal | F14 | Step | −5.12 | 5.12 | 0 | Discontinuous | Unimodal |
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