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Fuzzy Closeness Relation as a Basis for Weakening Fuzzy Relational Queries
2004Query weakening is the modification of the conditions involved in a query in order to obtain a less restrictive variant and then a non empty set of answers. The aim of the paper is to propose an approach for dealing with this problem in the case of fuzzy queries against relational databases.
Patrick Bosc +2 more
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Fuzzy relations and fuzzy functions
Fuzzy Sets and Systems, 1986The author introduces, on a complete Brouwerian lattice L, interesting definitions of L-valued fuzzy equivalence relation, L-valued fuzzy function, L-fuzzy partition, and he goes deeply into their links. Noteworthy consequence of this new definition is that L-fuzzy-functions, so defined, assume values in a Boolean subalgebra of the lattice L. Later the
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Fuzzy Relations and Fuzzy Graphs
1985Fuzzy relations are fuzzy subsets of X × Y, that is, mappings from X → Y. They have been studied by a number of authors, in particular by Zadeh [1965, 1971], Kaufmann [1975], and Rosenfeld [1975]. Applications of fuzzy relations are widespread and important. We shall consider some of them and point to more possible uses at the end of this chapter.
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On type-2 fuzzy relations and interval-valued type-2 fuzzy sets
Fuzzy Sets and Systems, 2014Chun Yong Wang, Bao Qing Hu
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A procedure for ranking fuzzy numbers using fuzzy relations
Fuzzy Sets and Systems, 1988Miguel Delgado +2 more
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Some issues on consistency of fuzzy preference relations
European Journal of Operational Research, 2004Francisco Chiclana +2 more
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Similarity relations, fuzzy partitions, and fuzzy orderings
Fuzzy Sets and Systems, 1991Sergei Ovchinnikov
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Incomplete fuzzy linguistic preference relations under uncertain environments
Information Fusion, 2010Tien-Chin Wang
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Fuzzy Decision-Making Based on Likelihood-Based Comparison Relations
IEEE Transactions on Fuzzy Systems, 2010Shyi-Ming Chen, Li-Wei Lee
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Fuzzy partitions and relations; an axiomatic basis for clustering
Fuzzy Sets and Systems, 1978James Bezdek
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