Fuzzy set operations - Open Access .click

2006 IEEE International Conference on Fuzzy Systems, 2006
Type-2 fuzzy sets, an elaboration over type-1 fuzzy sets, are an interesting method for handling uncertainty in rules and parameters in fuzzy systems. However, their adoption has not been as wide as one could have expected. In this paper we provide a simple introduction to type-2 fuzzy sets; then we propose a novel method for calculating operations on ...
Hooman Tahayori +2 more
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Set operations of fuzzy sets using gradual elements

Soft Computing, 2019
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Hsien-Chung Wu
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Comment on Pythagorean and Complex Fuzzy Set Operations

IEEE transactions on fuzzy systems, 2018
Dick et al. introduced a relation $\leq ^*$ on $\Pi -i$ numbers and proved that $(\Pi -i, \leq ^*)$ is a bounded distributive complete lattice. In the present paper, we point out that the relation $\leq ^*$ is not a partial order and that $(\Pi -i ...
Lianzhen Liu, Xiangyang Zhang
semanticscholar +1 more source

Fuzzy power sets and fuzzy implication operators

Fuzzy Sets and Systems, 1980
The theory of fuzzy power sets, which has hitherto been insufficiently developed, is shown very naturally to require the use of a fuzzy implication operator (Section 1). Six such operators are gathered from the literature on multiple-valued logic (Section 2), and their effects on fuzzy power-set theory are compared throughout the rest of the paper ...
Bandler, Wyllis, Kohout, Ladislav
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computer science
mathematics
artificial intelligence

fuzzy logic
fuzzy set
programming language

set abstract data type
engineering
theory of fuzzy sets, etc.