Results 11 to 20 of about 158,978 (298)

On Distribution Characteristics of a Fuzzy Random Variable

open access: yesAustrian Journal of Statistics, 2018
In this paper, rst a new notion of fuzzy random variables is introduced. Then, using classical techniques in Probability Theory, some aspects and results associated to a random variable (including expectation, variance, covariance, correlation coecient ...
Jalal Chachi
doaj   +1 more source

Perceptionization of FM/FD/1 queuing model under various fuzzy numbers

open access: yesCroatian Operational Research Review, 2020
We present a FM/FD/1 queuing model with unbounded limit under different fuzzy numbers. The arrival (landing) rate and service (administration) rate are thought to be fuzzy numbers such as triangular, trapezoidal and pentagonal fuzzy numbers.
Usha Prameela Karupothu, Pavan Kumar
doaj   +1 more source

H∞ fuzzy control for systems with repeated scalar nonlinearities and random packet losses [PDF]

open access: yes, 2009
Copyright [2009] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services.
Dong, H, Gao, H, Wang, Z
core   +1 more source

Estimation of Hazard Rate and Mean Residual Life Ordering for Fuzzy Random Variable

open access: yesAbstract and Applied Analysis, 2015
L2-metric is used to find the distance between triangular fuzzy numbers. The mean and variance of a fuzzy random variable are also determined by this concept.
S. Ramasubramanian, P. Mahendran
doaj   +1 more source

Cramér-Rao Lower Bound for Fuzzy-Valued Random Variables

open access: yesAustrian Journal of Statistics, 2016
In some point estimation problems, we may confront imprecise (fuzzy) concepts. One important case is a situation where all observations are fuzzy rather than crisp.
Hamzeh Torabi
doaj   +1 more source

(Quantum) Space-Time as a Statistical Geometry of Fuzzy Lumps and the Connection with Random Metric Spaces [PDF]

open access: yes, 2000
We develop a kind of pregeometry consisting of a web of overlapping fuzzy lumps which interact with each other. The individual lumps are understood as certain closely entangled subgraphs (cliques) in a dynamically evolving network which, in a certain ...
Alexandroff P   +49 more
core   +2 more sources

Retrofitting Transportation Network Using a Fuzzy Random Multiobjective Bilevel Model to Hedge against Seismic Risk

open access: yesAbstract and Applied Analysis, 2014
This paper focuses on the problem of hedging against seismic risk through the retrofit of transportation systems in large-scale construction projects (LSCP). A fuzzy random multiobjective bilevel programming model is formulated with the objectives of the
Lu Gan, Jiuping Xu
doaj   +1 more source

Solving the General Fuzzy Random Bilevel Programming Problem Through $Me$ Measure-Based Approach

open access: yesIEEE Access, 2018
This paper addresses the general fuzzy random bilevel programming problem in which not only both objective functions, but also the constraints contain fuzzy random variable coefficients.
Aihong Ren
doaj   +1 more source

Variable grouping in multivariate time series via correlation [PDF]

open access: yes, 2001
The decomposition of high-dimensional multivariate time series (MTS) into a number of low-dimensional MTS is a useful but challenging task because the number of possible dependencies between variables is likely to be huge.
Liu, X, Swift, S, Tucker, A
core   +1 more source

Fuzzy directed divergence measure and its application to decision making [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2018
Divergence or relative information is a measure of information associated with two probability distributions of a discrete random variable which is based in Shannon entropy.
Priti Gupta   +3 more
doaj   +1 more source

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