期刊
APPLIED SOFT COMPUTING
卷 63, 期 -, 页码 223-234出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.asoc.2017.11.049
关键词
Hesitant fuzzy linguistic term set; Multi-criteria decision making; Concordance sets; Discordance sets; Score-deviation-based ELECTRE II method; Positive-negative ideal hesitant fuzzy linguistic elements based ELECTRE II method
资金
- National Natural Science Foundation of China [71501135, 71571123, 71771156]
- Scientific Research Foundation for Excellent Young Scholars at Sichuan University [2016SCU04A23]
- Scientific Research Foundation for Scholars at Sichuan University [YJ201535]
In real life, it is not always the case that experts are able to assess alternatives by precise values. With the incomplete and vague information obtained, the experts are inclined to provide their assessments by eliciting linguistic terms. Considering that the experts may hesitate between several linguistic terms during the evaluating process, a new tool called the hesitant fuzzy linguistic term set (HFLTS) was introduced to represent this situation. This tool allows the experts to use several possible linguistic terms rather than a single one to appraise the performances of alternatives. In this paper, we investigate the ELECTRE II method in the HFLTS environment and propose two new approaches named the score-deviation-based ELECTRE II method and the positive and negative ideal hesitant fuzzy linguistic elements based ELECTRE II method. To fully explore the underlying preference information and specify the outranking degrees of alternatives, we set up three levels of concordance and discordance sets, which are finally devoted to ranking the alternatives more convincingly. An illustrative example is operated to show the practicability of the proposed methods and then a sensitivity analysis is performed as well to test the robustness of the two methods. (C) 2017 Elsevier B.V. All rights reserved.
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