journal6 ›› 2013, Vol. 34 ›› Issue (5): 16-20.DOI: 10.3969/j.issn.1007-2985.2013.05.005

• Mathematics • Previous Articles     Next Articles

Improved GM(1,1) Model and Verhulst Model with Their Applications

 XIAO  Lan-Jing, LIU  Hong-Liang   

  1. (1.Nanya Middle School of Changsha,Changsha 410129,China;2.School of Mathematics and Computational Science,Xiangtan University,Xiangtan 411105,Hunan China)
  • Online:2013-09-25 Published:2013-11-04

Abstract: The GM(1,1) model and Verhulst model are improved based on residual modification.These improved models are used to predict investment of fixed assets and rice production in Hunan province.The predicting results show that the improved models are better than the previous models and more suitable to predict the investment of fixed assets and rice production.

Key words: regression analysis, gray forecast, GM (1,1) model, Verhulst model

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