Research Article

An Improved Nonlinear Grey Bernoulli Model Based on the Whale Optimization Algorithm and Its Application

Table 7

Parameter values for five grey models.

Parameters

GM (1, 1)−0.0897.8780.500
DGM (1, 1)1.0938.346
NGBM (1, 1)−0.11710.5900.500−0.126
ONGBM (1, 1)−0.11810.6890.490−0.130
INGBM (1, 1)−0.12110.9240.500−0.141−0.12110.941