摘要
灰色模型可以克服随机分析模型的某些缺点 ,但有时灰色模型的拟合精度较低。针对这个问题 ,提出了用灰关联度较大的显著变量建立较优 GM(1 ,N )模型的方法 ,并将其应用于大坝安全监控领域。算例表明 ,较优 GM(1 ,N )
Some disadvantages in statistical model can be overcome by grey model, but sometimes the precision of grey model is relatively low. Aiming at the problem, an improved grey model using prominent variables with bigger correlative degrees is brought forward in this paper, and it can be used in dam safety monitoring. Study shows that the precision of the improved grey model is better than the stepwise regression model.
出处
《水电能源科学》
2002年第2期45-47,共3页
Water Resources and Power
关键词
大坝
安全监控
灰色模型
关联度
dam
safety monitoring
grey model
correlative degree
