Study on the second grey relational grade and its properties
Abstract
Purpose
The purpose of this paper is to propose a second relational grade based on the general grey relational grade and analyze several of its properties.
Design/methodology/approach
Grey system theory. The paper proposes and studies second grey relational grade, establishes second grey relational formula, and studies several characteristics of second grey relational formula.
Findings
Proposing a second relational grade proved it could solve the problem of the parallelism partly and weaken relativity of space position.
Research limitations/implications
Until now, the problem of the consistency could not be solved, nor could the problem of the effect which keeps the sequence the same.
Practical implications
The precision of the grey forecasting model could be strengthened if used in the forecasting model.
Originality/value
The general relational grade only thinks over the relation between two sequences but does not involve the relation in one sequence. The second relational grade considers these two, so if the forecasting model is established with it, the model should be more exact.
Keywords
Citation
Ma, Y. (2010), "Study on the second grey relational grade and its properties", Kybernetes, Vol. 39 No. 8, pp. 1330-1335. https://doi.org/10.1108/03684921011063628
Publisher
:Emerald Group Publishing Limited
Copyright © 2010, Emerald Group Publishing Limited