期刊
APPLIED MATHEMATICAL MODELLING
卷 38, 期 9-10, 页码 2689-2694出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2014.02.028
关键词
Multi-criteria group decision making; Aggregation operator; Interval-valued intuitionistic fuzzy set; Interval-valued intuitionistic fuzzy prioritized weighted average (IVIFPWA) operator
资金
- Hong Kong Polytechnic University
- National Natural Science Foundation of China [61174022]
- R&D Program of China [2012BAH07B01]
- Chongqing Natural Science Foundation [CSCT, 2010BA2003]
- National High Technology Research and Development Program of China (863 program) [2013AA013801]
- Fundamental Research Funds for the Central Universities [XDJK201313029, XDJK2014C082]
- 4th Education and Teaching Reform Research Program of Southwest University [2010JY024]
Interval-valued intuitionistic fuzzy prioritized operators are widely used in group decision making under uncertain environment due to its flexibility to model uncertain information. However, there is a shortcoming in the existing aggregation operators (interval-valued intuitionistic fuzzy prioritized weighted average (IVIFPWA)) to deal with group decision making in some extreme situations. For example, when an expert gives an absolute negative evaluation, the operators could lead to irrational results, so that they are not effectively enough to handle group decision making. In this paper, several examples are illustrated to show the unreasonable results in some of these situations. Actually, these unreasonable cases are common for operators in dealing with product averaging, not only emerging in IVIFPWA operators. To overcome the shortcoming of these kinds of operators, an improvement of making slight adjustment on initial evaluations is provided. Numerical examples are used to show the efficiency of the improvement. (C) 2014 Elsevier Inc. All rights reserved.
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