Volume 23 (2026)
Volume 22 (2025)
Volume 21 (2024)
Volume 20 (2023)
Volume 19 (2022)
Volume 18 (2021)
Volume 17 (2020)
Volume 16 (2019)
Volume 15 (2018)
Volume 14 (2017)
Volume 13 (2016)
Volume 11 (2014)
Volume 10 (2013)
Volume 9 (2012)
Volume 8 (2011)
Volume 7 (2010)
Volume 6 (2009)
Volume 5 (2008)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
A TS Fuzzy Model Derived from a Typical Multi-Layer Perceptron

A. Kalhor; B. N. Aarabi; C. Lucas; B. Tarvirdizadeh

Volume 12, Issue 2 , March and April 2015, Pages 1-21

Abstract
  In this paper, we introduce a Takagi-Sugeno (TS) fuzzy model which is derived from a typical Multi-Layer Perceptron Neural Network (MLP NN). At first, it is shown that the considered MLP NN can be interpreted as a variety of TS fuzzy model. It is discussed that the utilized Membership Function (MF) in ...  Read More

Modeling of Epistemic Uncertainty in Reliability Analysis of Structures Using a Robust Genetic Algorithm

Mansour Bagheri; Mahmoud Miri; Naser Shabakhty

Volume 12, Issue 2 , March and April 2015, Pages 23-40

Abstract
  In this paper the fuzzy structural reliability index was determined through modeling epistemic uncertainty arising from ambiguity in statistical parameters of random variables. The First Order Reliability Method (FORM) has been used and a robust genetic algorithm in the alpha level optimization method ...  Read More

EQ-logics with delta connective

M. Dyba; V. Novak

Volume 12, Issue 2 , March and April 2015, Pages 41-61

Abstract
  In this paper we continue development of formal theory of a special class offuzzy logics, called EQ-logics. Unlike fuzzy logics being extensions of theMTL-logic in which the basic connective is implication, the basic connective inEQ-logics is equivalence. Therefore, a new algebra of truth values calledEQ-algebra ...  Read More

Bifuzzy core of fuzzy automata

S. P. Tiwari; Anupam K. Singh; Shambhu Sharan; Vijay K. Yadav

Volume 12, Issue 2 , March and April 2015, Pages 63-73

Abstract
  The purpose of the present work is to introduce the concept of bifuzzy core of a fuzzy automaton, which induces a bifuzzy topology on the state-set of this fuzzy automaton. This is shown that this bifuzzy topology can be used to characterize the concepts such as bifuzzy family of submachines, bifuzzy ...  Read More

Existence and uniqueness of the solution of nonlinear fuzzy Volterra integral equations

T. Allahviranloo; P. Salehi; M. Nejatiyan

Volume 12, Issue 2 , March and April 2015, Pages 75-86

Abstract
  In this paper the fixed point theorem of Schauder is used to prove the existence of a continuous solution of the nonlinear fuzzy Volterra integral equations. Then using some conditions the uniqueness of the solution is investigated.  Read More

Existence and uniqueness of the solution of fuzzy-valued integral equations of mixed type

R. Ezzati; F. Mokhtarnejad

Volume 12, Issue 2 , March and April 2015, Pages 87-94

Abstract
  In this paper, existence theorems for the fuzzy Volterra-Fredholm integral equations of mixed type (FVFIEMT) involving fuzzy number valued mappings have been investigated. Then, by using Banach's contraction principle, sufficient conditions for the existence of a unique solution of FVFIEMT are given. ...  Read More

Fuzzy resolvent equation with $H(cdot,cdot)$-$phi$-$eta$-accretive operator in Banach spaces

Rais Ahmad; Mohd Dilshad

Volume 12, Issue 2 , March and April 2015, Pages 95-106

Abstract
  In this paper, we introduce and study fuzzy variational-like inclusion, fuzzy resolvent equation and $H(cdot,cdot)$-$phi$-$eta$-accretive operator in real  uniformly smooth Banach spaces. It is established that fuzzy variational-like inclusion is equivalent to a fixed point problem as well as to ...  Read More

Classifying fuzzy normal subgroups of\ finite groups

Marius Tarnauceanu

Volume 12, Issue 2 , March and April 2015, Pages 107-115

Abstract
  In this paper a first step in classifying the fuzzy normalsubgroups of a finite group is made. Explicit formulas for thenumber of distinct fuzzy normal subgroups are obtained in theparticular cases of symmetric groups and dihedral groups.  Read More

Numerical solutions of nonlinear fuzzy Fredholm integro-differential equations of\ the second kind

M. Mosleh; M. Otadi

Volume 12, Issue 2 , March and April 2015, Pages 117-127

Abstract
  In this paper, we use parametric form of fuzzy number, then aniterative approach for obtaining approximate solution for a classof nonlinear fuzzy Fredholmintegro-differential equation of the second kindis proposed. This paper presents a method based on Newton-Cotesmethods with positive coefficient. Then ...  Read More

Generated $textbf{textit{L}}$-subgroup of an $textbf{textit{L}}$-group

Naseem Ajmal; Iffat Jahan

Volume 12, Issue 2 , March and April 2015, Pages 129-136

Abstract
  In this paper, we extend the construction of a fuzzy subgroup generated by a fuzzy subset to $L$-setting. This construction is illustrated by an example. We also prove that for an $L$-subset of a group, the subgroup generated by its level subset is the level subset of the subgroup generated by that $L$-subset ...  Read More

A New Approach to Caristi's Fixed Point Theorem on Non-Archimedean Fuzzy Metric Spaces

S. Sedghi; N. Shobkolaei; I. Altun

Volume 12, Issue 2 , March and April 2015, Pages 137-143

Abstract
  In the present paper, we give a new approach to Caristi's fixed pointtheorem on non-Archimedean fuzzy metric spaces. For this we define anordinary metric $d$ using the non-Archimedean fuzzy metric $M$ on a nonemptyset $X$ and we establish some relationship between $(X,d)$ and $(X,M,ast )$%. Hence, we ...  Read More