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Revista Colombiana de Estadística
versión impresa ISSN 0120-1751
Resumen
KARAMIKABIR, HAMID y AFSHARI, MAHMUD. Wavelet Shrinkage Generalized Bayes Estimation for Multivariate Normal Distribution Mean Vectors with unknown Covariance Matrix under Balanced-LINEX Loss. Rev.Colomb.Estad. [online]. 2022, vol.45, n.1, pp.107-123. Epub 17-Ene-2023. ISSN 0120-1751. https://doi.org/10.15446/rce.v45n1.92037.
In this paper, the generalized Bayes estimator of mean vector parameter for multivariate normal distribution with Unknown mean vector and covariance matrix is considered. This estimation is performed under the balanced-LINEX error loss function. The generalized Bayes estimator by using wavelet transformation is investigated. We also prove admissibility and minimaxity of shrinkage estimator and we present the simulation study and real data set for test validity of new estimator.
Palabras clave : admissibility; generalized bayes estimator; balanced-linex loss; minimaxity; multivariate normal distribution; soft wavelet shrinkage estimator.