摘要
GM( 1 ,1 )预测模型是根据过去及现在已知的或非确知的信息建立一个从过去引申到将来的GM模型 ,从而确定系统在未来发展的趋势。它具有需要原始数据少 ,精度高的特点 ,操作简单易行 ,打破了传统的建立离散的递推模型预测方法 ,也克服了传统预测方法的局限性。田径运动是一个明显的灰色系统 ,所以该方法预测田径成绩 (如奥运会田赛成绩 )是可行的 ,具有实际研究意义。
GM(1,1) predicting inodel is based on the given informa tion and some indefinite information in the past and nowadays to be set up,which is a new GM model and can direct the further development of the system in futur e.It needs only a few original data,and gives high accuracy in results,and overc omes the limitations of the traditional prediction methods.It's easy for people to use this method.Since the track and field sports is a grey system,it's feasib le and practical to apply GM(1,1) model to predict results in track and field sp orts(e.g. the track and field sports in Olympic Games).
