TY  - JOUR
AB  - Purpose– The purpose of this paper is to present two novel grey cluster evaluation models to solve the difficulty in extending the bounds of each clustering index of grey cluster evaluation models. Design/methodology/approach– In this paper, the triangular whitenization weight function corresponding to class 1 is changed to a whitenization weight function of its lower measures, and the triangular whitenization weight function corresponding to class s is changed to a whitenization weight function of its upper measures. The difficulty in extending the bound of each clustering indicator is solved with this improvement. Findings– The findings of this paper are the novel grey cluster evaluation models based on mixed centre-point triangular whitenization weight functions and the novel grey cluster evaluation models based on mixed end-point triangular whitenization weight functions. Practical implications– A practical evaluation and decision problem for some projects in a university has been studied using the new triangular whitenization weight function. Originality/value– Particularly, compared with grey variable weight clustering model and grey fixed weight clustering model, the grey cluster evaluation model using whitenization weight function is more suitable to be used to solve the problem of poor information clustering evaluation. The grey cluster evaluation model using endpoint triangular whitenization weight functions is suitable for the situation that all grey boundary is clear, but the most likely points belonging to each grey class are unknown; the grey cluster evaluation model using centre-point triangular whitenization weight functions is suitable for those problems where it is easier to judge the most likely points belonging to each grey class, but the grey boundary is not clear.
VL  - 5
IS  - 3
SN  - 2043-9377
DO  - 10.1108/GS-11-2014-0050
UR  - https://doi.org/10.1108/GS-11-2014-0050
AU  - Liu Si-feng
AU  - Yang Yingjie
AU  - Fang Zhi-geng
AU  - Xie Naiming
PY  - 2015
Y1  - 2015/01/01
TI  - Grey cluster evaluation models based on mixed triangular whitenization weight functions
T2  - Grey Systems: Theory and Application
PB  - Emerald Group Publishing Limited
SP  - 410
EP  - 418
Y2  - 2024/04/24
ER  -