a modification on the hesitant fuzzy set lexicographical ranking method
;Xiaodi Liu;Zengwen Wang;Shitao Zhang
journal of hospitality and tourism management2016Vol. 8pp. 153-
97
liu2016symmetrya
Abstract
Recently, a novel hesitant fuzzy set (HFS) ranking technique based on the idea of lexicographical ordering is proposed and an example is presented to demonstrate that the proposed ranking method is invariant with multiple occurrences of any element of a hesitant fuzzy element (HFE). In this paper, we show by examples that the HFS lexicographical ordering method is sometimes invalid, and a modified ranking method is presented. In comparison with the HFS lexicographical ordering method, the modified ranking method is more reasonable in more general cases.