A novel generalized grey target decision method with index and weight both containing mixed types of data
Grey Systems: Theory and Application
ISSN: 2043-9377
Article publication date: 22 February 2021
Issue publication date: 3 January 2022
Abstract
Purpose
This paper is to propose a novel generalized grey target decision method (GGTDM) with index and weight both containing mixed types of data.
Design/methodology/approach
The decision-making steps of the proposed approach are as follows. First, all mixed attribute values of alternatives and weights are transformed into binary connection numbers and also comprised two-tuple (determinacy, uncertainty) numbers. Then, the two-tuple (determinacy, uncertainty) numbers of target center indices are calculated. Next, the certain weights are determined by the Gini–Simpson (G–S) index-based method. Following this, the comprehensive-weighted Kullback–Leibler distances (CWKLDs) of all alternatives and the target center are obtained. Finally, the alternative ranking relies on the CWKLD considering the smaller value as the better option.
Findings
The certain weights determined by the improved Gini–Simpson index (IGSI) based method are more accurate in compared with that by the proximity-based method and the weight function method. The discrimination ability of alternatives ranking of the proposed approach is stronger than that of the compared comprehensive-weighted proximity (CWP) based method and comprehensive-weighted Gini–Simpson index (CWGSI) based method.
Research limitations/implications
The proposed method fulfills the decision-making task relying on CWKLD, which solves the uncertain measurement from the viewpoint of entropy.
Originality/value
The proposed approach adopts the IGSI to transform uncertain weights into certain ones and takes the CWKLD as the basis for the decision-making.
Keywords
Acknowledgements
This research was funded by the General Project of Humanities and Social Sciences Research of Higher Schools in Henan Province (Grant No. 2021-ZZJH-128). The authors are grateful to the anonymous referees for their comments and suggestions for improving the quality of this paper.Conflicts of interest: The authors declare that they have no conflicts of interest.
Citation
Ma, J., Tian, D. and Yue, J. (2022), "A novel generalized grey target decision method with index and weight both containing mixed types of data", Grey Systems: Theory and Application, Vol. 12 No. 1, pp. 252-268. https://doi.org/10.1108/GS-09-2020-0125
Publisher
:Emerald Publishing Limited
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