Affiliation of Author(s):经济与管理学院
Journal:Kongzhi yu Juece Control Decis
Abstract:Aiming at solving the predicting problems for the decreasing non-homogenous series, the grey model NGOM(1, 1) is proposed with the method of accumulated generating operation in opposite-direction. The parameters and time response function are estimated. For the background value and the initial condition have a great effect on the simulating and predicting accuracy of the grey model, the background value is optimized by using the equations, and the initial condition is modified by using the expectation function, which ensures the consistency between the two rules, namely, the minimum values of optimized objective function and the minimum average relative errors. The results of the case study show that the NGOM(1, 1) model has better simulating accuracy compared to other optimized models, which demonstrates the effectiveness and practicability of the proposed model dealing with the decreasing non-homogeneous sequences. © 2017, Editorial Office of Control and Decision. All right reserved.
ISSN No.:1001-0920
Translation or Not:no
Date of Publication:2017-08-01
Co-author:丁松
Correspondence Author:丁松,dyg
Date of Publication:2017-08-01