Table 4: The computational results under exponential distributions.

Size ( ) TSA PSO-SA
Best Mean Worst Best Mean Worst

1.000 1.051 1.093 1.001 1.071 1.119
1.000 1.024 1.087 1.021 1.054 1.128
1.000 1.037 1.076 0.995 1.054 1.088
1.000 1.018 1.047 1.036 1.072 1.091
1.000 1.050 1.078 1.016 1.051 1.076
1.000 1.042 1.051 1.050 1.063 1.086
1.000 1.042 1.056 1.061 1.078 1.089
1.000 1.033 1.091 1.031 1.048 1.091
1.000 1.048 1.095 1.017 1.069 1.085
1.000 1.057 1.061 1.048 1.055 1.091

Avg. 1.000 1.040 1.074 1.028 1.062 1.094