Research Article
Aquaculture Prediction Model Based on Improved Water Quality Parameter Data Prediction Algorithm under the Background of Big Data
Table 3
Results of water quality prediction model for 20 water quality experiments conducted in different periods and regions.
| | Data sample | BP model | PCA-BP model | GPCA-BP model | | Actual value | Estimate | Relative error (%) | Actual value | Estimate | Relative error (%) | Actual value | Estimate | Relative error (%) |
| | 1 | 8.04 | 7.98 | -1.89 | 8.02 | 7.58 | -1.12 | 7.99 | 7.98 | -0.19 | | 2 | 8.04 | 9.07 | 1.76 | 8.03 | 8.46 | 1.11 | 8.01 | 8.07 | 0.66 | | 3 | 8.01 | 9.06 | 1.76 | 8.01 | 7.66 | -1.16 | 7.98 | 8.06 | 0.66 | | 4 | 8.03 | 9.06 | 1.56 | 7.76 | 8.16 | 0.96 | 8.01 | 8.06 | 0.56 | | 5 | 7.98 | 6.83 | -1.25 | 7.91 | 7.53 | -0.95 | 7.99 | 7.83 | -0.25 | | 6 | 7.96 | 6.90 | -1.12 | 7.99 | 7.60 | -0.72 | 7.96 | 7.90 | -0.12 | | 7 | 7.98 | 6.91 | -1.56 | 7.99 | 7.51 | -0.96 | 8.08 | 7.91 | -0.56 | | 8 | 8.01 | 9.89 | 1.45 | 8.02 | 7.49 | -0.85 | 8.03 | 7.89 | 0.45 | | 9 | 7.98 | 9.09 | 1.75 | 7.96 | 8.69 | 1.05 | 8.08 | 8.09 | 0.75 | | 10 | 7.99 | 6.08 | -1.96 | 7.94 | 7.08 | -0.96 | 8.03 | 8.05 | -0.66 | | 11 | 8.01 | 9.10 | 1.46 | 8.05 | 8.36 | 0.89 | 8.03 | 8.10 | 0.46 | | 12 | 8.04 | 9.06 | 1.35 | 8.01 | 8.96 | 1.03 | 7.97 | 8.06 | 0.35 | | 13 | 7.96 | 9.05 | 1.65 | 7.99 | 8.85 | 1.15 | 8.01 | 8.05 | 0.65 | | 14 | 7.99 | 6.90 | -1.26 | 7.94 | 7.40 | -0.86 | 7.99 | 7.90 | -0.26 | | 15 | 8.07 | 6.01 | -1.46 | 8.04 | 7.61 | -0.96 | 8.01 | 8.01 | -0.46 | | 16 | 8.04 | 9.12 | 1.56 | 8.01 | 8.82 | 1.06 | 8.04 | 8.12 | 0.56 | | 17 | 8.04 | 6.97 | -1.75 | 8.01 | 7.57 | -0.75 | 8.03 | 7.97 | -0.65 | | 18 | 8.06 | 9.11 | 1.86 | 8.01 | 8.61 | 0.76 | 8.01 | 8.11 | 0.76 | | 19 | 8.04 | 9.07 | 1.65 | 8.02 | 8.77 | 0.85 | 8.02 | 8.07 | 0.65 | | 20 | 8.03 | 9.13 | 1.75 | 8.03 | 7.63 | -1.05 | 8.01 | 8.13 | 0.65 |
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