Journal
INFORMATION FUSION
Volume 42, Issue -, Pages 1-11Publisher
ELSEVIER
DOI: 10.1016/j.inffus.2017.09.004
Keywords
Hesitant fuzzy linguistic term sets; Group decision making; Consensus measures; Decision maker's profile
Funding
- INVITE Research Project - Spanish Ministry of Science and Information Technology [TIN2016-80049-C2-1-R, TIN2016-80049-C2-2-R]
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Present measures of the degree of agreement in group decision-making using hesitant fuzzy linguistic term sets allow consensus or agreement measurement when decision makers' assessments involve hesitance. Yet they do not discriminate with different degrees of consensus among situations with discordant or polarized assessments. The visualization of differences among groups for which there is no agreement but different possible levels of disagreement is an important issue in collective decision-making situations. In this paper, we propose new collective and individual consensus measures that explicitly consider the hesitance of the decision makers' hesitance in giving an opinion and also the gap between non overlapping assessments, thus allowing the measurement of the polarization present within the group's opinions. In addition, an expert's profile is defined by considering the expert's behavior in previous assessments in group decision-making processes in terms of precision and dissension. (C) 2017 Elsevier B.V. All rights reserved.
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