Based on the grey system theory, through the analysis of the theory flaw of the GM (1,1) prediction model, taking into the linear trend and the exponential growth trend of the settlement monitoring data series, and using the sequence operator role to enhance the smoothness of the original sequence data, combined with the characteristics of GM (1,1) and the linear regression, this paper presents a new and improved combination forecasting mode. Compared the traditional model, the accuracy of the improved method has been greatly enhanced...
