نتایج جستجو برای: symmetric fuzzy linear system

تعداد نتایج: 2693115  

Journal: :iranian journal of optimization 0
s.h nasseri department of mathematics, university of mazandaran, babolsar, iran e. darban jafari department of mathematics, university of mazandaran, babolsar, iran. r. chameh department of mathematics, university of mazandaran, babolsar, iran.

many ranking methods have been proposed so far. however, there is yet no method that can always give a satisfactory solution to every situation; some are counterintuitive, not discriminating; some use only the local information of fuzzy values; some produce different ranking for the same situation. for overcoming the above problems, we propose a new method for ranking fuzzy quantities based on ...

Journal: :amirkabir international journal of modeling, identification, simulation & control 2015
v. azimi m. b. menhaj a. fakharian

this article presents a fuzzy robust mixed - sensitivity gain - scheduled h controller based on the loop -shaping methodology for a class of mimo uncertain nonlinear time - varying systems. in order to design this controller, the nonlinear parameter - dependent plant is first modeled as a set of linear subsystems by takagi and sugeno’s (t - s) fuzzy approach. both loop - shaping methodology and...

Journal: :international journal of industrial mathematics 2010
s. khezerloo m. montazeri z. valizadeh

Journal: :international journal of industrial engineering and productional research- 0
mahdi ruhparvar islamic azad university, tehran, iran hamed mazandarani zadeh dept. of technical- engineering, water engineering group, imam khomeini international university (ikiu), qazvin, iran farnad nasirzadeh faculty of engineering, payame noor university (pnu), po box 19395-3697, tehran, iran

an equitable risk allocation between contracting parties plays a vital role in enhancing the performance of the project. this research presents a new quantitative risk allocation approach by integrating fuzzy logic and bargaining game theory. owing to the imprecise and uncertain nature of players’ payoffs at different risk allocation strategies, fuzzy logic is implemented to determine the value...

2014
M. Otadi M. OTADI

According to fuzzy arithmetic, general dual fuzzy linear system (GDFLS) cannot be replaced by a fuzzy linear system (FLS). In this paper, we use new notation of fuzzy numbers and convert a GDFLS to two linear systems in crisp case, then we discuss complexity of the proposed method. Conditions for the existence of a unique fuzzy solution to n× n GDFLS are derived. AMS Subject Classification: 34K...

Journal: :Inf. Sci. 1971
Lotfi A. Zadeh

The notion of “similarity” as defined in this paper is essentially a generalization of the notion of equivalence. In the same vein, a fuzzy ordering is a generalization of the concept of ordering. For example, the relation x *y (x is much larger than y) is a fuzzy linear ordering in the set of real numbers. More concretely, a similarity relation, S, is a fuzzy relation which is reflexive, symme...

H. Attari S.H. Nasseri,

In this paper, Chebyshev acceleration technique is used to solve the fuzzy linear system (FLS). This method is discussed in details and followed by summary of some other acceleration techniques. Moreover, we show that in some situations that the methods such as Jacobi, Gauss-Sidel, SOR and conjugate gradient is divergent, our proposed method is applicable and the acquired results are illustrate...

2013
S. Moloudzadeh P. Darabi H. Khandani

In this paper, we present a solution of an arbitrary general fully fuzzy linear systems (FFLS) in the form Ã⊗ x̃ = b̃. Where coefficient matrix à is anm×n fuzzy matrix and all of this system are elements of LR type fuzzy numbers. Our method discuss a general FFLS (square or rectangle fully fuzzy linear systems with trapezoidal or triangular LR fuzzy numbers). To do this, we transform fully fuzzy ...

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