TITLE:
The Non-Equidistant Grey GRM (1, 1) Model and Its Application
AUTHORS:
Ruibiao Zou, Zouxin Mou, Wei Yi
KEYWORDS:
Background Value; Grey Model GRM (1, 1) Generated by Accumulated Generating Operation of Reciprocal Number; Non-Equal Interval; Accumulation Generation Operation; Grey System
JOURNAL NAME:
International Journal of Modern Nonlinear Theory and Application,
Vol.1 No.2,
June
28,
2012
ABSTRACT: Applying the modeling method of Grey system and accumulated generating operation of reciprocal number for the problem of lower precision as well as lower adaptability in non-equidistant GM (1, 1) model, the calculation formulas were deduced and a non-equidistant GRM (1, 1) model generated by accumulated generating operation of reciprocal number was put forward .The grey GRM (1, 1) model can be used in non-equal interval & equal interval time series and has the characteristic of high precision as well as high adaptability. Example validates the practicability and reliability of the proposed model.