Results 31 to 40 of about 350,088 (334)

r-fuzzy sets

open access: yesComputers & Mathematics with Applications, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Q., Wang, P., Lee, E.S.
openaire   +1 more source

Dual Hesitant Fuzzy Sets

open access: yesJournal of Applied Mathematics, 2012
In recent decades, several types of sets, such as fuzzy sets, interval-valued fuzzy sets, intuitionistic fuzzy sets, interval-valued intuitionistic fuzzy sets, type 2 fuzzy sets, type 𝑛 fuzzy sets, and hesitant fuzzy sets, have been introduced and ...
Bin Zhu, Zeshui Xu, Meimei Xia
doaj   +1 more source

Interval-Valued Fuzzy Parameterized Intuitionistic Fuzzy Soft Sets and Their Applications

open access: yesCumhuriyet Science Journal, 2019
In recent years, the fuzzy sets, interval-valued fuzzysets, intuitionistic fuzzy sets and soft sets, which offer differentperspectives for the structures containing the uncertainties, have attractedthe interest of many researchers.
Hüseyin Kamacı
doaj   +1 more source

Quaternionic Fuzzy Sets

open access: yesAxioms, 2023
A novel concept of quaternionic fuzzy sets (QFSs) is presented in this paper. QFSs are a generalization of traditional fuzzy sets and complex fuzzy sets based on quaternions.
Songsong Dai
doaj   +1 more source

m-Polar Fuzzy Sets: An Extension of Bipolar Fuzzy Sets

open access: yesThe Scientific World Journal, 2014
Recently, bipolar fuzzy sets have been studied and applied a bit enthusiastically and a bit increasingly. In this paper we prove that bipolar fuzzy sets and 0,12-sets (which have been deeply studied) are actually cryptomorphic mathematical notions. Since
Juanjuan Chen   +3 more
doaj   +1 more source

Some new results on intuitionistic fuzzy operators [PDF]

open access: yesNotes on IFS, 2023
The concept of intuitionistic fuzzy sets is becoming very popular day by day among mathematicians and researchers from other areas of science. It has been noticed that some operators have very interesting properties in Intuitionistic fuzzy sets.
Jaydip Bhattacharya
doaj   +1 more source

Intuitionistic fuzzy sets and some of their so-called extensions [PDF]

open access: yesNotes on IFS
In the present paper we investigate the relationship between intuitionistic fuzzy sets, interval-valued intuitionistic fuzzy sets and some proposed extensions of fuzzy sets, intuitionistic fuzzy sets, and sets that have similar structure.
Krassimir Atanassov   +2 more
doaj   +1 more source

Fuzzy Sets

open access: yesInformation and Control, 1965
A fuzzy set is a ``set'' of elements with a continuum of ``grades of membership''. The rigorous definition is: let \(X\) be a set of objects (elements); a fuzzy set \(A\) in \(X\) is defined by a ``membership (characteristic) function'' \(f_A\), which associates with each element \(x\in X\) a real number \(f_A(x)\in [0,1]\).
openaire   +2 more sources

A note on operations of hesitant fuzzy sets [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2015
In this paper, properties of operations and algebraic structures of hesitant fuzzy sets are investigated. Semilattices of hesitant fuzzy sets with union and intersection are discussed, respectively.
Zheng Pei, Liangzhong Yi
doaj   +1 more source

Lattice embeddings between types of fuzzy sets. Closed-valued fuzzy sets

open access: yes, 2017
In this paper we deal with the problem of extending Zadeh's operators on fuzzy sets (FSs) to interval-valued (IVFSs), set-valued (SVFSs) and type-2 (T2FSs) fuzzy sets.
Lobillo, F. J.   +3 more
core   +1 more source

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