نتایج جستجو برای: fuzzy variogram model

تعداد نتایج: 2172091  

2006
Abdellah Kacha Francis Grenez Jean Schoentgen

Generalized variogram is used to extract vocal dysperiocities in disordered speech produced by dysphonic speakers. Both signal and dysperiodicity are passed through a filter bank and a segmental signal-to-dysperiodicity ratio is defined in each frequency band. Multivariate analysis is carried out to summarize the degree of perceived hoarseness. The predictor variables are the segmental signal-t...

Journal: :مدیریت صنعتی 0
مهناز حسین زاده دکتری مدیریت تحقیق در عملیات، دانشکدة مدیریت دانشگاه تهران، تهران، ایران محمدباقر منهاج استاد دانشکدة مهندسی برق و الکترونیک، دانشگاه امیرکبیر، تهران، ایران عالیه کاظمی استادیار دانشکدة مدیریت دانشگاه تهران، تهران، ایران

[naeini1] in this paper, a new method is proposed to find the fuzzy optimal solution of fuzzy multi-objective linear programming problems (fmolpp) with fuzzy right hand side and fuzzy decision variables. due to the imprecise nature of available resources, determination of a definitive solution to the model seems impossible. therefore, the proposed model is designed in order to make fuzzy decisi...

2010
Sherief Reda

............................................................................................................................ 5 Chapter 1: Introduction ..................................................................................................... 6 1.1 Thermal Characterization of Processors ......................................................... 6 1.2 Research Overview ....................

2016
Kohei Arai Takashi Higuchi

Method for reducing the number of wild animal monitors is proposed by means of Kriging. Through wild animal route of simulations with 128 by 128 cells, the required number of wild animal monitors is clarified. Then it is found that the number of wild animal monitors can be reduced based on Kriging by using variograms and semi-variograms among the neighboring monitors. Also, it is found that the...

2004
Noel Cressie Douglas M. Hawkins

It is a matter o f common experience that ore values often do not follow the normal (or lognormal) distributions assumed for them, but, instead, follow some other heavier-tailed distribution. In this paper we discuss the robust estimation o f the variogram when the distribution is normal-like in the central region but heavier than normal in the tails. It is shown that the use o f a fourth-root ...

Journal: :Mathematics 2021

Let Z(s)=(Z1(s),…,Zp(s))t be an isotropic second-order stationary multivariate spatial process. We measure the statistical association between p random components of Z with correlation coefficients and dependence variograms. If two are correlated, information provided by one them can improve other. To capture this association, both within Z(s) across s, we use a cross-variogram. Only robust cro...

2004
Helene H. Wagner Rolf Holderegger Silke Werth Felix Gugerli Susan E. Hoebee Christoph Scheidegger Helene Wagner

A geostatistical perspective on spatial genetic structure may explain methodological issues of quantifying spatial genetic structure and suggest new approaches to address them. We use a variogram approach to (i) derive a spatial partitioning of molecular variance, gene diversity, and genotypic diversity for microsatellite data under the infinite allele model (IAM) and the stepwise mutation mode...

Journal: :journal of advances in computer research 0
rana akhoondi department of artificial intelligence, shahr-e-qods branch, islamic azad university, tehran, iran rahil hosseini department of artificial intelligence, shahr-e-qods branch, islamic azad university, tehran, iran

fuzzy logic has a high potential for managing the uncertainty sources associated with the medical expert systems. application of fuzzy inference model has been widely concentrated for managing uncertainties in computer based practices of medicine. this paper has proposed two fuzzy expert systems for prognosis of the heart disease based on: 1) mamdani inference model, and 2) sugeno inference mod...

Journal: :Biometrics 1988
P J Diggle

A linear model for repeated measurements is proposed in which the correlation structure within each time sequence of measurements includes parameters for measurement error, variation between experimental units, and serial correlation within units. An approach to data analysis is presented which involves preliminary analysis by ordinary least squares, use of the empirical semi-variogram of resid...

Journal: :iranian journal of fuzzy systems 2015
a. kalhor b. n. aarabi c. lucas b. tarvirdizadeh

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 such ts fuzzy model, despite its flexible structure, has some major restrictions. after modify...

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