Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Othmane Kortbi"'
Autor:
M. M. Yagoub, Tareefa AlSumaiti, Naeema Alhosani, Marwan Elmubarak, Othmane Kortbi, Yacob T. Tesfaldet, Mohamed Al Namani, Sarah R. Aldhanhani
Publikováno v:
Cogent Business & Management, Vol 11, Iss 1 (2024)
AbstractScopus database between 2000 and 2023 showed that while groceries are vital in disaster/pandemic management, their roles have not been adequately addressed in the literature. In this study, we argued that privately owned groceries can complem
Externí odkaz:
https://doaj.org/article/f90310e7d8074ff6a50a52574a4bb39f
Publikováno v:
Mathematics, Vol 12, Iss 22, p 3525 (2024)
In this paper, we focused on developing copula-based modeling procedures that effectively capture the dependence between response and explanatory variables. Building upon the work of Noh et al. (J. Am. Stat. Assoc. 2013, 108, 676–688) we extended c
Externí odkaz:
https://doaj.org/article/090e5c68e220463788a157c1ab51cb5f
Autor:
Mohamed M. Yagoub, Naeema Al Hosani, Tareefa AlSumaiti, Othmane Kortbi, Aaesha A. Alshehhi, Sarah R. Aldhanhani, Shamma A. Albedwawi
Publikováno v:
Sustainability; Volume 14; Issue 18; Pages: 11196
This study examines the relationship between food waste and gender, income, and where students live. The research aligns with the United Nations Sustainable Development Goals 2, 11, and 12; moreover, the massive global food shortage in 2022 due to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c195f56ea484cb6b587e6fbad2d7252
Publikováno v:
Journal of Statistical Planning and Inference. 185:56-68
This paper is concerned with prediction for Gamma models, and more specifically the estimation of a predictive density for Y ∼ G a ( α 2 , β ) under Kullback–Leibler loss, based on X ∼ G a ( α 1 , β ) . The main focus pertains to situations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c40d0d3c6a7cefc447a6a733a9a97f2
https://doi.org/10.1016/j.jspi.2017.01.003
https://doi.org/10.1016/j.jspi.2017.01.003
Autor:
Othmane Kortbi, Eric Marchand
Publikováno v:
Scopus-Elsevier
For normal models with \(X \sim N_p(\theta, \sigma^{2} I_{p}), \;\; S^{2} \sim \sigma^{2}\chi^{2}_{k}, \;\mbox{independent}\), we consider the problem of estimating θ under scale invariant squared error loss ||d − θ||2/σ2, when it is known that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa9f9c76bec9833a55110ca1bee89954
https://doi.org/10.1007/s13171-013-0028-x
https://doi.org/10.1007/s13171-013-0028-x
Publikováno v:
Metrika. 77:285-296
We consider estimation of the mean vector, \(\theta \), of a spherically symmetric distribution with known scale parameter under quadratic loss and when a residual vector is available. We show minimaxity of generalized Bayes estimators corresponding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e554a04ed387c2e8b00073fc0cbb1fcc
https://doi.org/10.1007/s00184-013-0437-9
https://doi.org/10.1007/s00184-013-0437-9
Minimum-distance statistics for the selection of an asymmetric copula in Khoudraji's class of models
Autor:
Othmane Kortbi, ean-Francois Quessy
Publikováno v:
Statistica Sinica.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4863739167fad7afc767d2ef6785bccf
https://doi.org/10.5705/ss.202014.0082
https://doi.org/10.5705/ss.202014.0082
Autor:
Eric Marchand, Othmane Kortbi
Publikováno v:
Journal of Statistical Planning and Inference. 142:2607-2618
We consider the problem of estimating the mean θ of an N p ( θ , I p ) distribution with squared error loss ∥ δ − θ ∥ 2 and under the constraint ∥ θ ∥ ≤ m , for some constant m > 0 . Using Stein's identity to obtain unbiased estimate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3031bf1d1e82ec8a0862c1e5dedb4cb9
https://doi.org/10.1016/j.jspi.2012.03.022
https://doi.org/10.1016/j.jspi.2012.03.022
Publikováno v:
Journal of Multivariate Analysis. 99(1):74-93
Bayes estimation of the mean of a variance mixture of multivariate normal distributions is considered under sum of squared errors loss. We find broad class of priors (also in the variance mixture of normal class) which result in proper and generalize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46acb13af48bdc3e1ea6f8bcb4f4e8ce