Aggregating Imprecise Linguistic Expressions

In this chapter, we propose a multi-person decision making procedure where agents judge the alternatives through linguistic expressions generated by an orderedfinitescaleoflinguisticterms(forinstance,'verygood','good','acceptable', 'bad', 'very bad'). If the agents are not confident about their opinions, they might use linguisticexpressionscomposedbyseveralconsecutivelinguisticterms(forinstance, 'betweenacceptableandgood').Theprocedureweproposeisbasedondistancesand it ranks order the alternatives taking into account the linguistic information provided by the agents. The main features and properties of the proposal are analyzed.

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