Abstract The outbreak of Corona Virus Disease 2019 (COVID-19) makes people more
concerned about the validity and timeliness of emergency decision making. When an …

The interval-valued hesitant fuzzy set, which allows decision makers to use several interval
numbers to assess a variable, is a useful tool to deal with situations in which people are …

With the recent Covid-19 outbreak, group emergency decision-making (GEDM), as a new
management model to pursue both social stability and decrease the negative impact of …

Interval-valued hesitant fuzzy information aggregation plays an important role in interval-
valued hesitant fuzzy set theory, which has received more and more attention in recent …

Hesitant fuzzy set is an extension of the traditional fuzzy set, and it has the membership
function which was expressed by several possible numbers. Since it was introduced, it has …

Interval-valued intuitionistic hesitant fuzzy set (IVIHFS) has a key role in multiple attribute
decision making (MADM) problems due to its ability to represent the decision maker's …

The methodology of managing hesitancy situations is improving step by step with new
basics and tools which have their specific characteristics. As a rule, aggregation operators …

When an emergency occurs, there'sa massive challenge for experts to select the optimal
emergency plan for disaster relief, because the decision-making process is full of uncertainty …

In today's fast-paced and dynamic business environment, investment decision making is
becoming increasingly complex due to the inherent uncertainty and ambiguity of the …

The probabilistic interval-valued hesitant fuzzy sets (PIVHFSs), being able to generalize
interval-valued hesitant fuzzy sets embedded with the decision makers (DMs)'preferences …