Weighted modification of fitting model GM(1,1) and its application

摘要：

Apply multivariate statistical analysis principle and method to build the GM(1,1) model of grey theory. And fit the GM(1,1) model parameter by using biaxial difference generalized least square method. As to initial predictive value, weighted modification was done, therefore the fitting curve of GM(1,1) model is consummated.

关键词： biazial difference generalized weighted least square initial predictive values weighted Mean Method weighted error square method

作者: Xu Wenke Cai Tijiu Gu Haiyan

作者单位: College of Science, Northeast Forestry University, Harbin 150040, China

会议类型: 国际会议

会议名称: 2009 International Institute of Applied Statistics Studies(2009 国际应用统计学术研讨会)

会议地点: 青岛

会议语种:英文

页码: 1-5

在线出版日期: 2009-07-25（万方平台首次上网日期，不代表论文的发表时间）