Research on SVR Water Quality Prediction Model Based on Improved Sparrow Search Algorithm

Table 6

Grey relational coefficient with their grade and rank.

No.	Grey relational coefficient			Grey relational grade	Rank
	GP	V
1	0.511	0.733	0.980	0.742	2
2	0.434	0.742	0.993	0.723	4
3	0.434	0.712	1	0.715	5
4	0.390	0.699	0.981	0.69	6
5	0.451	0.707	0.925	0.694	3
6	0.354	0.679	0.914	0.649	7
7	1	1	0.908	0.969	1
8	0.333	0.598	0.912	0.614	8
9	0.333	0.584	0.924	0.614	9

The bold values demonstrate the optimal response value and the highest S/N for each optimisation objective.