Table 4 Comparison of a hybrid of hill-climbing and GA (HHGA) with the tabu search (TS).

1

20

-15

-15

Fig. 6(a)

2

24

-17

-17

Fig. 6(b)

3

25

-12

-12

Fig. 6(c)

4

36

-24

-23

Fig. 6(d)

5

48

-40

-41

Fig. 6(e)

6

50

-

-38

Fig. 6(f)

7

60

-70

-66

Fig. 6(g)

8

64

-50

-63

Fig. 6(h)