A Method for Solving Group Linguistic Decision-Making Problems Based on IOWA

摘要

In this paper, we will provide a method for solving group decision-making problems based on IOWA operators. In which, linguistic assessments of deci-sion makers could be selected freely, i:e:, let S =maker could select his (or her) linguistic as-sessment from S, or freely give, such as, st, where t ∈ [1; n]. Formally, st 2 [si; si+1](i ∈ N ) could be explained by linguistic assessment of the deci-sion maker lied between si and si+1. The OWA pairs of IOWA operator are obtain by assessment level of experts and linguistic assessment of experts.Especially, we provide a new method to deal with 'tie' of IOWA operators. Example shows that our method is feasible.