... function transformation, which broadens and enriches the choice of function transformation. Separable binary function transformation Grey system Class ratio dispersion Function transformation Relative error The grey system has been applied in many fields since the theory was published...

... is estimated to be 0, then the variable structure is unnecessary and should be discarded. Accordingly, we need to design a parameter identification method under the least-squares framework, to achieve the purpose of structure selection. Grey system NGMC(1,N) model Structure selection Agricultural...

... 2020 01 07 2020 07 07 2020 © Emerald Publishing Limited 2020 Emerald Publishing Limited Licensed re-use rights only Grey system Riccati equation Discrete grey model GM(1,1) Grey Riccati model Grey system theory (Deng, 1982) was proposed in 1982. It is mainly used...

...Yi-Chung Hu; Peng Jiang; Hang Jiang; Jung-Fa Tsai Purpose In the face of complex and challenging economic and business environments, developing and implementing approaches to predict bankruptcy has become important for firms. Bankruptcy prediction can be regarded as a grey system problem because...

...Davood Darvishi Salookolaei; Seyed Hadi Nasseri Purpose For extending the common definitions and concepts of grey system theory to the optimization subject, a dual problem is proposed for the primal grey linear programming problem. Design/methodology/approach The authors discuss the solution...

... at: feylizadeh@iaushiraz.ac.ir 20 01 2018 31 03 2018 01 04 2018 © Emerald Publishing Limited 2018 Emerald Publishing Limited Licensed re-use rights only Grey linear programming Grey system Interactive fuzzy programming approach Interval coefficient Multi-objective linear...

...Sifeng Liu; Yingjie Yang; Jeffrey Forrest; Handan Rui Purpose The purpose of this paper is to present the terms of concepts and fundamental principles of grey systems. Design/methodology/approach The definitions of basic terms about concepts and fundamental principles of grey systems...

... by introducing grey system theory into rough set based analysis, aiming for a better choice of software cost estimation method on accuracy and effectiveness. Findings – The results are very encouraging in the sense of comparison among four machine learning techniques and thus indicate it an effective...

...Li Xi‐can; Yuan Zheng; Zhang Guangbo Purpose This paper attempts to establish the grey GM(0,N) estimation model of the soil organic matter content spectral inversion under the uncertainties between soil organic matter contents and spectral characteristics and the theory of grey system. Design...

...Dang Luo; Xia Wang Purpose According to the basic principle of grey system and third axiom buffer operator, aiming at the problem of disturbance, some new weakening buffer operators are established by analytical skills in the process of prediction. The problem of some contradictions between...

...Wen‐zhan Dai; Zi‐heng Wu; Ai‐ping Yang Purpose The purpose of this paper is to solve the problem existing in the forecast of impact disturbance grey system. Design/methodology/approach Under the axiomatic system of buffer operator in grey system theory, a novel kind of buffer operators...