Research Article
A Three-Stage Optimization Algorithm for the Stochastic Parallel Machine Scheduling Problem with Adjustable Production Rates
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 |
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