Harmony Search Algorithms for Water and Environmental Systems - Music-Inspired Harmony Search Algorithm: Theory and Applications - page 115

Table 2. Design Results of Hanoi Network

Algorithms Minimal Cost Number of Evaluations

Genetic Algorithm
Ant Colony Optimization
Cross Entropy
Scatter Search
Harmony Search

$ 6.173 M
$ 6,134 M
$ 6.081 M
$ 6.081 M
$ 6.081 M

26,457
35,433
97,000
43,149
27,721

previously with an Intel Celeron 1.8GHz CPU. It should be noted that GA and ACO
did not achieve the best objective function value found. The tabu search (TS) [18] re-
sult also violated the design constraint, which has been verified by EPANET [7].

2.4 Balerma Network Example

Reca and Martinez [19] proposed the real-world example of Balerma network located
in Spain with 4 reservoirs, 443 demand nodes, and 454 pipes, as shown in Figure 3.

Fig. 3. Schematic of Balerma network