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Interval-Valued Pythagorean Hesitant Fuzzy Set and Its Application to Multiattribute Group Decision-Making

open access: yesComplexity, 2020
Pythagorean hesitant fuzzy sets are widely watched because of their excellent ability to deal with uncertainty, imprecise and vague information. This paper extends Pythagorean hesitant fuzzy environments to interval-valued Pythagorean hesitant fuzzy ...
Maoyin Zhang   +3 more
doaj   +1 more source

Interval-Valued Fuzzy c-Means Algorithm and Interval-Valued Density-Based Fuzzy c-Means Algorithm

open access: yes, 2020
Most of the time membership value in the fuzzy set cannot be exactly defined. Interval-valued fuzzy set (IVFS) is a special type of type-2 fuzzy sets which represents the membership value of the fuzzy set as an interval.
Q. M. Danish Lohani   +7 more
core   +1 more source

Methods of analysing ordinal/interval questionnaire data using fuzzy mathematical principle [PDF]

open access: yes, 2007
Two methods of analysing interval/ordinal questionnaire data based upon principles from fuzzy mathematics and artificial intelligence are ...
Hassall, John
core   +4 more sources

Similarity between interval-valued fuzzy sets taking into account the width of the intervals and admissible orders [PDF]

open access: yes, 2019
In this work we study a new class of similarity measures between interval-valued fuzzy sets. The novelty of our approach lays, firstly, on the fact that we develop all the notions with respect to total orders of intervals; and secondly, on that we ...
Marco-Detchart, C.   +5 more
core   +1 more source

Characterizations of Ordered Semigroups by New Type of Interval Valued Fuzzy Quasi-Ideals

open access: yesJournal of Applied Mathematics, 2014
The concept of non-k-quasi-coincidence of an interval valued ordered fuzzy point with an interval valued fuzzy set is considered. In fact, this concept is a generalized concept of the non-k-quasi-coincidence of a fuzzy point with a fuzzy set.
Jian Tang, Xiangyun Xie, Yanfeng Luo
doaj   +1 more source

Distance and closeness measures in information spaces [PDF]

open access: yes, 2006
Obiettivo della tesi è fornire strumenti teorici per il trattamento di informazione “incompleta”. Ciò viene fatto, da un lato, in un ambito metrico, definendo misure di “distanza” tra oggetti, dall’altro definendo nozioni suggerite dalla logica a più ...
Coppola, Cristina
core   +1 more source

Modeling uncertainties associated with decision-making algorithms based on similarity measures of possibility belief interval-valued fuzzy hypersoft setting [PDF]

open access: yesNeutrosophic Sets and Systems
Hypersoft sets (HSSs) were initiated as an extension of soft sets (SSs) to address real-life scenarios involving multiple disjoint sets with di erent traits.
Mamika Ujianita Romdhini   +3 more
doaj   +1 more source

Implication functions in interval-valued fuzzy set theory [PDF]

open access: yes, 2013
Interval-valued fuzzy set theory is an extension of fuzzy set theory in which the real, but unknown, membership degree is approximated by a closed interval of possible membership degrees.
Glad Deschrijver, Deschrijver, Glad
core   +1 more source

Interval-Valued Intuitionistic Hesitant Fuzzy Aggregation Operators and Their Application in Group Decision-Making

open access: yesJournal of Applied Mathematics, 2013
Hesitant fuzzy sets, permitting the membership of an element to be a set of several possible values, can be used as an efficient mathematical tool for modelling people’s hesitancy in daily life. In this paper, we extend the hesitant fuzzy set to interval-
Zhiming Zhang
doaj   +1 more source

The Interval-Valued Triangular Fuzzy Soft Set and Its Method of Dynamic Decision Making

open access: yesJournal of Applied Mathematics, 2014
A concept of interval-valued triangular fuzzy soft set is presented, and some operations of “AND,” “OR,” intersection, union and complement, and so forth are defined. Then some relative properties are discussed and several conclusions are drawn.
Xiaoguo Chen, Hong Du, Yue Yang
doaj   +1 more source

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