Results 21 to 30 of about 199,571 (343)

A new fuzzy DEA network with possibility and necessity measures for performance evaluation of DMUs with network relations and fuzzy data: A case study in Iran regional power companies [PDF]

open access: yesمدیریت تولید و عملیات, 2022
Purpose: This paper aims to introduce necessity and possibility equality constraints in a real case, developing and improving fuzzy network DEA models by using proposed relations and creating a suitable and applicable framework for situations with ...
Hamze Pourbabagol   +2 more
doaj   +1 more source

Willmott Fuzzy Implication in Fuzzy Databases

open access: yesWSEAS TRANSACTIONS ON MATHEMATICS, 2021
The object of the research are fuzzy functional dependencies on given relation scheme, and the question of their obtaining using the classical and innovated techniques. The attributes of the universal set are associated to the elements of the unit interval, and are turned into fuzzy formulas in this way.
Sanela Nesimovic, Dzenan Gusic
openaire   +1 more source

Fully implicational methods for interval-valued fuzzy reasoning with multi-antecedent rules [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2011
Based on the fully implicational idea, we investigate the interval-valued fuzzy reasoning with multiantecedent rules. First, we construct a class of interval-valued fuzzy implications by means of a type of implications and a parameter on the unit ...
Hua-Wen Liu, Cheng Li
doaj   +1 more source

Picture Fuzzy Knowledge Measure with Application to MADM

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2023
The complementary dual of entropy is termed “knowledge measure” in recent studies concerning fuzzy and intuitionistic fuzzy sets. A picture fuzzy set is an extended and generalized form of fuzzy and intuitionistic fuzzy sets.
Dinesh K. Sharma   +2 more
doaj   +1 more source

Generalized R′-Implications: A Hyper Class of R- and R′-Implications

open access: yesJournal of Mathematics, 2023
In this paper, generalized R′-implications are introduced and studied. Although they are not always fuzzy implications, the sufficient and necessary condition such that a generalized R′-operation is a fuzzy implication is discovered and proved.
Dimitrios S. Grammatikopoulos   +1 more
doaj   +1 more source

Fundamental properties of fuzzy rough sets based on triangular norms and fuzzy implications: the properties characterized by fuzzy neighborhood and fuzzy topology

open access: yesComplex & Intelligent Systems, 2023
Fuzzy rough set models are useful tools for dealing with fuzzy and real-valued data. They have been used in many real-world applications. In this paper, we investigate the fuzzy rough set model based on triangular norms and fuzzy implications.
Zhaohao Wang
doaj   +1 more source

A Fuzzy Implication-Based Approach for Validating Climatic Teleconnections

open access: yesMathematics, 2022
Fuzzy logic, during recent decades, has evolved into one of the most influential scientific fields. To an extent, this is due to its applications which have a profound impact on the daily life of people worldwide.
Stefanos Makariadis, Basil Papadopoulos
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.
Deschrijver, Glad
core   +1 more source

Semantics of Propositional Fuzzy Modal Logic with Evaluated Syntax and its Application to Fuzzy Decision Implications [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2015
This paper deals with propositional fuzzy modal logic with evaluated syntax based on MV-algebras. We focus on its semantical theory from the viewpoint of Pavelka's graded semantics of propositional fuzzy logic, investigate the L-tautologies based on ...
Xiaodong Pan, Yang Xu
doaj   +1 more source

On the first place antitonicity in QL-implications [PDF]

open access: yes, 2008
To obtain a demanded fuzzy implication in fuzzy systems, a number of desired properties have been proposed, among which the first place antitonicity, the second place isotonicity and the boundary conditions are the most important ones.
Shi, Yun   +3 more
core   +2 more sources

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