Research Article
Research on the Concentration Prediction of Nitrogen in Red Tide Based on an Optimal Grey Verhulst Model
Table 1
Model accuracy grade table.
| The precision grade | The posterior variance ratio | Small error probability |
| Level 1 (good) | | | Level 2 (qualified) | | | Level 3 (reluctant) | | | Level 4 (unqualified) | | |
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