Journal
2013 UKM FST POSTGRADUATE COLLOQUIUM
Volume 1571, Issue -, Pages 987-993Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4858782
Keywords
Complex fuzzy set; complex Atanassov's intuitionistic fuzzy set; Atanassov's intuitionistic fuzzy sets; necessity operation and possibility operation
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Several innovative uncertainty sets were introduced recently. Complex Atanassov's intuitionistic fuzzy set (CAIFS) is one of these uncertainty sets, where Atanassov's intuitionistic fuzzy membership and non-membership functions take values in the unit circle in the complex plane. In this paper, some operations are generalised to the case of CAIFS. Two main operations square and lozenge are introduced and various properties are investigated. Also, we conclude the advantage from generalising these two operations to the realm of complex numbers, by finding out a relationship between the concepts of CAIFS and complex fuzzy sets (CFS).
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