An Optimized Grey Dynamic Model for Forecasting the Output of High-Tech Industry in China

Table 4

The values of parameters 𝑛, 𝑟, 𝑟𝑓, and 𝑟𝑝 in (7), the estimates of model parameters 𝑏₁, 𝑏₂, and (𝑏_2𝑖−1,𝑏_2𝑖) in (10), the optimized parameters 𝜌₁, 𝜌₂, and 𝜌₃, and the values of RMSPEPR in (17).

Parameter	Value	Parameter	Value
𝑛	3	𝑏5	8.23
𝑟	8	𝑏6	−1.68
𝑟𝑝	0	𝜌1	0.17624
𝑏1	−0.34721	𝜌2	0.14669
𝑏2	−0.45756	𝜌3	1
𝑏3	34.90	RMSPEPR (%)	1.86
𝑏4	18.76