The necessity of dealing with uncertainty in real world problems has been a long-term
research challenge which has originated different methodologies and theories. Recently, the …

Hesitant fuzzy set (HFS) as an effective tool to reflect human's hesitancy has received great
attention in recent years. The importance weights of possible values in hesitant fuzzy …

As an extension of the fuzzy set, the hesitant fuzzy set (HFS) is an effective tool for handling
uncertainty and vagueness in decision making problems. Considering that the correlation …

The necessity of dealing with uncertainty in real world problems has been a long‐term
research challenge that has originated different methodologies and theories. Fuzzy sets …

As a generalization of fuzzy set, hesitant fuzzy set is a very useful tool in situations where
there are some difficulties in determining the membership of an element to a set caused by a …

When people make a decision, they are usually hesitant and irresolute for one thing or
another which makes it difficult to reach a final agreement. For example, two decision …

Decision making always happens in our daily life, for example, choosing a car to buy, or
selecting an electronic product from Amazon or Ebay. In the traditional multiple criteria …

Hesitant fuzzy set (HFS) is a powerful decision tool to express uncertain information more
flexibly and comprehensively. The aim of this paper is to propose more reasonable …

The distance measures of hesitant fuzzy elements (HFEs) h 1 (x) and h 2 (x) introduced in
the literature only cover the divergence of the values, but fail to consider the difference …

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 …