Journal
JOURNAL OF INTELLIGENT & FUZZY SYSTEMS
Volume 25, Issue 2, Pages 279-290Publisher
IOS PRESS
DOI: 10.3233/IFS-120635
Keywords
Atanassov's intuitionistic fuzzy set (AIFS); interval-valued intuitionistic fuzzy set (IVIFS); Einstein t-norm; arithmetic averaging operator; multi-attribute decision making (MADM)
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Funding
- National Natural Science Foundation of China (NSFC) [71171048]
- Scientific Research and Innovation Project for College Graduates of Jiangsu Province [CXZZ11_0185]
- Scientific Research Foundation of Graduate School of Southeast University [YBJJ1135]
- State Key Laboratory of Rail Traffic Control and Safety of Beijing Jiaotong University [RCS2011K002]
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The notion of interval-valued intuitionistic fuzzy set (IVIFS) is a generalization of that of Atanassov's intuitionistic fuzzy set (AIFS). The fundamental characteristic of IVIFS is that the values of its membership function and non-membership function are intervals rather than exact numbers. In this paper, we define some Einstein operations on IVIFS and develop three arithmetic averaging operators, such as the interval-valued intuitionistic fuzzy Einstein weighted averaging (IVIFWA(epsilon)) operator, interval-valued intuitionistic fuzzy Einstein ordered weighted averaging (IVIFOWA(epsilon)) operator, and interval-valued intuitionistic fuzzy Einstein hybrid weighted averaging (IVIFHWA(epsilon)) operator, for aggregating interval-valued intuitionistic fuzzy information. The IVIFHWA(epsilon) operator generalizes both the IVIFWA(epsilon) and IVIFOWA(epsilon) operators. Moreover, we establish various properties of these operators and derive the relationship between the proposed operators and the exiting aggregation operators. Finally, we apply the IVIFHWA(epsilon) operator to multiple attribute decision making with interval-valued intuitionistic fuzzy information.
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