Results 31 to 40 of about 23,412 (229)

On Optimal and Asymptotic Properties of a Fuzzy L2 Estimator

open access: yesMathematics, 2020
A fuzzy least squares estimator in the multiple with fuzzy-input–fuzzy-output linear regression model is considered. The paper provides a formula for the L2 estimator of the fuzzy regression model. This paper proposes several operations for fuzzy numbers
Jin Hee Yoon, Przemyslaw Grzegorzewski
doaj   +1 more source

Empirical best linear unbiased predictors in multivariate nested-error regression models [PDF]

open access: yesCommunications in Statistics - Theory and Methods, 2018
For analyzing unit-level multivariate data in small area estimation, we consider the multivariate nested error regression model (MNER) and provide the empirical best linear unbiased predictor (EBLUP) of a small area characteristic based on second-order ...
Tsubasa Ito, T. Kubokawa
semanticscholar   +1 more source

Prediksi Risiko Sistematik Saham-Saham LQ45 Bursa Efek Indonesia

open access: yesJurnal Ekonomi dan Bisnis, 2016
Beta has been argued, both conceptually as well as empirically. In 1960's, many practitioners used superior advantages in calculation attempted at CAPM theory for investing in asset which has high Beta.
A An Arief Jusuf
doaj   +1 more source

Weighted Moments Estimators of the Parameters for the Extreme Value Distribution Based on the Multiply Type II Censored Sample

open access: yesThe Scientific World Journal, 2013
We propose the weighted moments estimators (WMEs) of the location and scale parameters for the extreme value distribution based on the multiply type II censored sample.
Jong-Wuu Wu   +3 more
doaj   +1 more source

On Generalized Upper(k)Record Values From Weibull Distribution

open access: yesStatistica, 2015
In this paper we study the generalized upper(k)record values arising from Weibull distribution. Expressions for the moments and product moments of those generalized upper(k)record values  are derived.
Jerin Paul, Poruthiyudian Yageen Thomas
doaj   +1 more source

Design-based composite estimation of small proportions in small domains

open access: yesNonlinear Analysis, 2023
Traditional direct estimation methods are inefficient for domains of a survey population with small sample sizes. To estimate the domain proportions, we combine the direct estimators and the regression-synthetic estimators based on domain-level ...
Andrius Čiginas
doaj   +1 more source

Multivariate extensions of the Multilevel Best Linear Unbiased Estimator for ensemble-variational data assimilation

open access: yes, 2023
Multilevel estimators aim at reducing the variance of Monte Carlo statistical estimators, by combining samples generated with simulators of different costs and accuracies.
Destouches, Mayeul   +2 more
core   +1 more source

All about the ⊥ with its applications in the linear statistical models

open access: yesOpen Mathematics, 2015
For an n x m real matrix A the matrix A⊥ is defined as a matrix spanning the orthocomplement of the column space of A, when the orthogonality is defined with respect to the standard inner product ⟨x, y⟩ = x'y.
Markiewicz Augustyn, Puntanen Simo
doaj   +1 more source

Estimation of Simple Linear Regression Model Parameters Using Double Ranked Set Sampling [PDF]

open access: yesThe Egyptian Statistical Journal, 2002
The notion of ranked set sampling (RSS) for estimating the mean of a population and its advantage over the use of a simple random sampling for the same aim is well known and established in the literature. Furthermore, the double ranked set sampling (DRSS)
Elies Kouider
doaj   +1 more source

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