...Xican Li; Li Li Purpose In order to express the intrinsic information of interval grey number reasonably, this paper discusses the information measure index and its property of interval grey number. Design/methodology/approach Firstly, based on the generalized greyness and generalized...

...Li Li; Xican Li Purpose In order to solve the decision-making problem that the attributive weight and attributive value are both interval grey numbers, this paper tries to construct a multi-attribute grey decision-making model based on generalized greyness of interval grey number. Design...

...Li Zhang; Xican Li Purpose Aim to the limitations of grey relational analysis of interval grey number, based on the generalized greyness of interval grey number, this paper tries to construct a grey angle cosine relational degree model from the perspective of proximity and similarity. Design...

.... In this paper, uncertain man-hours are represented as interval grey numbers, and the optimization problem of production line balance in the case of interval grey man-hours is studied to better evaluate the production line capacity. Design/methodology/approach First, this paper constructs the basic model...

...Naiming Xie; Yuquan Wang Purpose This paper aims to investigate the grey scheduling, which is the combination of grey system theory and scheduling problems with uncertain processing time. Based on the interval grey number and its related definitions, properties, and theorems, the single machine...

...Li Li; Xican Li Purpose In order to make full use of the generalized greyness of interval grey number, this paper analyzes the properties and its applications of generalized greyness. Design/methodology/approach Firstly, the static properties of generalized greyness in bounded background...

...Xican Li; Li Li Purpose In order to reflect the essential characteristics of interval grey number and study the ranking method of interval grey number as a whole, this paper aims to establish a ranking method of interval grey number. Design/methodology/approach First, based on the generalised...

...Li Li; Xican Li Purpose In order to make grey relational analysis applicable to the interval grey number, this paper discusses the model of grey relational degree of the interval grey number and uses it to analyze the related factors of China's technological innovation ability. Design...

... and interval grey-numbers to MACBETH multi criteria decision making method. In this paper, a new interval grey MACBETH method approach is proposed, and the degree of greyness approach is used for clarifying the uncertainties. Using this new approach in which grey numbers are used, it is aimed to observe...

... a novel time-lag GM(1,N) model based on interval grey number sequences. Firstly, calculating kernel and degree of greyness of the interval grey number sequence respectively. Then, establishing the time-lag GM(1,N) model of kernel and degree of greyness sequences respectively to obtain their values after...

...’ risk decisions and may also help to find the best risk response budget. © Emerald Publishing Limited 2020 Emerald Publishing Limited Licensed re-use rights only Risk response Interval grey number K-shell Risk correlation Project risks are objective in the project. If the risks...

...Dang Luo; Zhang Huihui Purpose The purpose of this paper is to propose a grey clustering model based on kernel and information field to deal with the situation in which both the observation values and the turning points of the whitenization weight function are interval grey numbers. Design...

...Ye Li; Juan Li Purpose The purpose of this paper is to construct an unbiased interval grey number prediction model with new information priority for dealing with the jumping errors from difference equation to the differential equation in the prediction model of interval grey number. Design...

...Naiming Xie Purpose The purpose of this paper is to combine the interval grey number algorithm with a project scheduling model, so as to solve the interval grey number based project scheduling problem. Design/methodology/approach According to the grey system theory, if we could not clearly...

...Pingping Xiong; Yue Zhang; Bo Zeng; Tian-Xiang Yao Purpose Aiming at the traditional multivariate grey forecasting model only considers the modelling of real numbers; therefore, the purpose of this paper is to construct an MGM(1, m) model based on the interval grey number sequences...

...Jing Ye; Yaoguo Dang Purpose Nowadays, evaluation objects are becoming more and more complicated. The interval grey numbers can be used to more accurately express the evaluation objects. However, the information distribution of interval grey numbers is not balanced. The purpose of this paper...

...Wenxin Mao; Dang Luo; Huifang Sun Purpose The purpose of this paper is to propose a multi-scale extended grey target decision method for dealing with multi-attribute decision-making problems with interval grey numbers whose value distribution information is asymmetrical. Design/methodology...

... an uncertain pure linguistic approach on evaluation of enterprise integrity based on grey information. Design/methodology/approach Initial uncertain linguistic variables given by experts are transferred into interval grey numbers, and their greyness of degree is computed. Then, the greyness of degree...

... and 1. Kernel Grey number Interval grey number General grey number Degree of greyness Simplified form Synthesis axiom Operation rules Such a number instead of its range whose exact value is unknown is referred to as a grey number. Grey number is the basic “unit” or “cell” of grey...

... – Based on interval grey number theory, reliability analysis method and stochastic network theory, authors have established grey success tree analysis-graph evaluation and review technique (GSTA-GERT) model in this paper. Findings – Comparing complex products and general products, authors have found...