Sense of optimizing criteria

(−, −)

(−, +)

(+, −)

(+, +)

Statistical parameters

Min

Avg

Max

Min

Avg

Max

Min

Avg

Max

Min

Avg

Max

CPU time (second)

51.7

53.1

55.5

88.5

89.5

91.2

95.3

97.4

98.9

137

144

153

Size of “best” paths

1

1

1

1

1

2

1

1

1

1

1

1

Error Ratio (ER)

0

0

0

0

0

0

0

0

0

0

0.4

1

Generational Distance (GD)

0

0

0

0

0

0

0

0

0

0

28.3

71.6

Percentage of paths found (%)

1.53

1.54

1.56

1

1.04

1.07

1.02

1.19

1.49

1.64

1.81

2.11

Generation

2000

2000

2000

2000

2000

2000

2000

2000

2000

2000

2000

2000