Journal
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
Volume 189, Issue 2, Pages 430-444Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ejor.2007.06.013
Keywords
decision analysis; linguistic preference relation; consistency
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Inspired by the concept of deviation measure between two linguistic preference relations, this paper further defines the deviation measure of a linguistic preference relation to the set of consistent linguistic preference relations. Based on this, we present a consistency index of linguistic preference relations and develop a consistency measure method for linguistic preference relations. This method is performed to ensure that the decision maker is being neither random nor illogical in his or her pair-wise comparisons using the linguistic label set. Using this consistency measure, we discuss how to deal with inconsistency in linguistic preference relations, and also investigate the consistency properties of collective linguistic preference relations. These results are of vital importance for group decision making with linguistic preference relations. (C) 2007 Elsevier B.V. All rights reserved.
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