Study on parameters characteristics of DDGM(1,1) prediction model with multiplication transformation
Grey Systems: Theory and Application
ISSN: 2043-9377
Article publication date: 26 June 2018
Issue publication date: 2 July 2018
Abstract
Purpose
The purpose of this paper is to reveal the changing role of the parameters of the DDGM(1,1) model after multiple transformations in the modeling sequence.
Design/methodology/approach
This paper considers DDGM(1,1) model as the research object, adopts the parameter packet technique to analyze the influence of multiple transformations on the modeling accuracy of this model and discusses the quantitative relation of model parameters as multiple transformations in system’s characteristic sequences.
Findings
The results of numerical calculation show that the modeling accuracy of DDGM(1,1) model is not affected by multiple transformations in the characteristics sequence of systems.
Originality/value
The paper succeeds in realizing the properties of DDGM(1,1) model by using the method of multiple transformations, which is helpful to understand the modeling mechanism and expand the application range of DDGM(1,1) model.
Keywords
Acknowledgements
The authors thank the anonymous referees for their comments and suggestions. This work is supported by National Natural Science Foundation of China under Grant (No. 71301060), and the social science Foundation of College of Jiangsu Province (No. 2017SJB1625).
Citation
Cui, J. and Ma, H. (2018), "Study on parameters characteristics of DDGM(1,1) prediction model with multiplication transformation", Grey Systems: Theory and Application, Vol. 8 No. 3, pp. 358-365. https://doi.org/10.1108/GS-01-2018-0010
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited