期刊
INFORMATION SCIENCES
卷 476, 期 -, 页码 290-318出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ins.2018.10.016
关键词
Fuzzy logical implicator; Covering based multigranulation; (TT)-fuzzy rough set; Fuzzy beta-neighborhood; Multi-attribute group decision-making
资金
- National Natural Science Foundation of China [71571090]
- National Science Foundation of Shaanxi Province of China [2017JM7022]
- Key Strategic Project of Fundamental Research Funds for the Central Universities [JBZ170601]
By means of a fuzzy logical implicator and a t-norm (respectively denoted I and T), we introduce covering based multigranulation (I, T)-fuzzy rough set models from fuzzy beta-neighborhoods. By using different implicators and t-norms, the corresponding axiomatic characterizations of covering based optimistic, pessimistic and variable precision multi granulation (I, T)-fuzzy rough set models are investigated. Connections among these kinds of coverings based models are examined. Based on the theoretical analysis for the covering based multigranulation (I, T)-fuzzy rough set models, solutions to problems in multi-attribute group decision-making by means of two kinds of decision-making methods are respectively established. An effective example is fully developed to illustrate these methodologies. Comparative analysis shows that the two ranking results obtained by means of two different decision-making methods have a high consensus. (C) 2018 Elsevier Inc. All rights reserved.
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