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Chinese Journal of Management Science ›› 2012, Vol. 20 ›› Issue (6): 154-159.

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The Research on the Modeling Method of Background Value Optimization in Grey Verhulst Model

XIONG Ping-ping1,2, DANG Yao-guo1, YAO Tianxiang3, CUI Jie2   

  1. 1. College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. College of Mathematics and Statistics, Nanjing University of Information Science and Technology, Nanjing 210044,China;
    3. College of Economics and Management, Nanjing University of Information Science and Technology, Nanjing 210044,China
  • Received:2011-02-14 Revised:2012-08-30 Online:2012-12-29 Published:2012-12-28

Abstract: In this study, the error sources of background value of traditional grey Verhulst model and optimizes the background value of the model are analyzed, in order to improve the simulation and prediction accuracy of the model. Based on the Logistic function structure of the time response formula in the grey Verhulst model, the Logistic function is used to fit the accumulated sequence, three parameters in Logistic function are solved through a series of mathematical derivation and the idea of accumulated generating operation in opposite direction, and then the optimal formula of background value of grey Verhulst model is got and the optimal grey Verhulst model is constructed. Finally, the optimization effect in this paper is verified by an example and an application example respectively. The result shows that it can effectively improve the simulation and prediction accuracy of the traditional grey Verhulst model to use the optimization background value.

Key words: grey Verhulst model, logistic function, background value, optimization

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