Despite of several generalizations of fuzzy set theory, the notion of hesitant fuzzy set (HFS),
which permits the membership having a set of possible values, is interesting and very useful …

This paper aims to develop a new hesitant fuzzy mathematical programming method for
hybrid multi-criteria group decision making (MCGDM) with hesitant fuzzy truth degrees and …

In this study, we extend the hesitant fuzzy set (HFS) to its higher order type and refer to it as
the higher order hesitant fuzzy set (HOHFS). HOHFS is the actual extension of HFS that …

Hesitancy is the most common problem in decision making, for which hesitant fuzzy set can
be considered as a suitable means allowing several possible degrees for an element to a …

The notion of hesitant fuzzy linguistic term sets (HFLTSs), which enables experts to utilize a
few possible linguistic terms to evaluate varieties of common qualitative information, plays a …

In this paper, multi-criteria decision-making (MCDM) methods with probabilistic hesitant
fuzzy information are proposed based on the dominance degree of probabilistic hesitant …

In real life, it is not always the case that experts are able to assess alternatives by precise
values. With the incomplete and vague information obtained, the experts are inclined to …

It is unquestionable that hesitant fuzzy set has developed into an important tool for handling
uncertain data. As a measure between data, hesitant fuzzy entropy is significant in the …

Hesitant fuzzy sets are very useful to deal with group decision making problems when
experts have a hesitation among several possible memberships for an element to a set …

In the process of group decision making (GDM), preference relations (eg fuzzy preference
relation and multiplicative preference relation) are very popular tools to express decision …