提高GM（1，1）预测精度的一些措施

Some Measures of Improving GM (1,1) Forecasting Precision

本文讨论了影响ＧＭ（１，１）预测精度的常见的一些原因，并相应地介绍了改进ＧＭ（１，１）预测模型，以提高预测精度的几个措施。

In this paper, some general reasons effecting the precision of GM(1,1) forecasting are discussed, and measures of modifying GM(1,1) forecasting model and improving forecasting precision are introduced