نتایج جستجو برای: fuzzy number sequences

تعداد نتایج: 1428371  

Journal: :iranian journal of optimization 0
a. ghanizadeh department of statistics, islamic azad university of kermanshah branch, kermanshah, iran n. parandin department of mathematics, islamic azad university of kermanshah branch, kermanshah, iran

in this paper, we propose a new method for fuzzy numbers. in this method, we assume that ai= (ai1, ai2, ai3, ai4) is to be a fuzzy number. so, the convex combination of ai1 and ai2 and also the convex combination of ai3 and ai4 are obtained separately. then, mic and mis that are to be the convex combinations and the standard deviation respectively we acquire them from these components. finally,...

Journal: :international journal of industrial mathematics 0
rahim saneifard department of applied mathematics‎, ‎urmia branch‎, ‎islamic azad university‎, ‎urmia‎, ‎iran.‎‎ rasoul saneifard department of engineering technology‎, ‎texas southern university‎, ‎houston‎, ‎texas‎, ‎usa.

the importance as well as the difficulty of the problem of ranking fuzzy numbers is pointed out. here we consider approaches to the ranking of fuzzy numbers based upon the idea of associating with a fuzzy number a scalar value, its signal/noise ratios, where the signal and the noise are defined as the middle-point and the spread of each $gamma$-cut of a fuzzy number, respectively. we use the va...

Journal: :Computers & Mathematics with Applications 2011
Adrian I. Ban Lucian C. Coroianu

2014
Bipan Hazarika Ayhan Esi

In this paper we present some definitions which are the natural combination of the definition of asymptotic equivalence, statistical convergence, lacunary statistical convergence of fuzzy real numbers and ideal. In addition, we also present asymptotically ideal equivalent sequences of fuzzy real numbers and establish some relations related to this concept. Finally we introduce the notion of Ces...

Journal: :Int. J. Approx. Reasoning 2011
Adrian I. Ban Lucian C. Coroianu

Article history: Received 6 January 2010 Revised 11 November 2010 Accepted 15 November 2010 Available online 21 November 2010

Journal: :Fuzzy Sets and Systems 2000
Dorota Kuchta

Fuzzy equivalents of all the classical capital budgeting (investment choice) methods are generalised or proposed. These equivalents can be used to evaluate and compare projects in which the cash ows, duration time and required rate of return (cost of capital) are given imprecisely, in the form of a fuzzy number. c © 2000 Elsevier Science B.V. All rights reserved.

Journal: :Fuzzy Sets and Systems 2006
Salih Aytar Musa A. Mammadov Serpil Pehlivan

Index Terms—Fuzzy number, lambda-statistical limit inferior, lambda-statistical limit superior.

Journal: :Int. J. Approx. Reasoning 2014
A. Blanco-Fernández M. R. Casals A. Colubi N. Corral M. García-Bárzana M. A. Gil G. González-Rodríguez M. T. López M. A. Lubiano M. Montenegro A. B. Ramos-Guajardo S. de la Rosa de Sáa B. Sinova

This note is a rejoinder on our paper in this issue. It attempts to provide some clari cations and thoughts in connection with the discussions/comments made about it by Didier Dubois and Sébastien Destercke. We hope our comments are at the level of the discussants'.

2015
Huan Huang Congxin Wu

In this paper we consider how to use the convolution method to construct approximations, which consist of fuzzy numbers sequences with good properties, for a general fuzzy number. It shows that this convolution method can generate differentiable approximations in finite steps for fuzzy numbers which have finite nondifferentiable points. In the previous work, this convolution method only can be ...

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