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Predictive performance comparison of the BP neural network and the PSO-BP neural network.
| Neural network | Number of iterations | Maximum relative error (%) | Minimum relative error (%) | Average relative error (%) | Average relative error variance | R 2 |
|---|---|---|---|---|---|---|
| BP | 2000 | 13.41 | 0.13 | 5.04 | 5.38 | 0.998223 |
| PSO-BP | 150 | 1.03 | 0.0198 | 0.38 | 0.46 | 0.999987 |
