Title :
Function x-ln x (x ≥ e) transformation for improving smooth degree and its application in grey modeling
Author :
Huanyong, Zhang ; Aiping, Yang ; Wenzhan, Dai
Author_Institution :
Zhejiang Sci-Tech Univ., Hangzhou
Abstract :
In this paper, a new method for improving smooth degree of original data sequence based on function transformation X-lnx is put forward. It is proved that the new method can advance the smooth degree of original data sequence much better and can improve the precision of GM(1,1) model. The new method can widen the application range of grey model. The practical application shows the effectiveness of the proposing approach.
Keywords :
forecasting theory; functional analysis; grey systems; sequences; forecasting model; function transformation; grey modeling; original data sequence; smooth degree improvement; Economic forecasting; Intelligent systems; Predictive models;
Conference_Titel :
Grey Systems and Intelligent Services, 2007. GSIS 2007. IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1294-5
Electronic_ISBN :
978-1-4244-1294-5
DOI :
10.1109/GSIS.2007.4443491
