Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ahmed H. Youssef"'
Publikováno v:
WSEAS TRANSACTIONS ON MATHEMATICS. 21:487-514
The spatial analysis aims to understand and explore the nature of entanglements and interactions between spatial units’ locations. The analysis of models involving spatial dependence has received great attention in recent decades. Because ignoring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59aa4882101d958017d014d765d55ae2
https://doi.org/10.37394/23206.2022.21.56
https://doi.org/10.37394/23206.2022.21.56
Efficiency Comparisons of Robust and Non-Robust Estimators for Seemingly Unrelated Regressions Model
Publikováno v:
WSEAS TRANSACTIONS ON MATHEMATICS. 21:218-244
This paper studies and reviews several procedures for developing robust regression estimators of the seemingly unrelated regressions (SUR) model, when the variables are affected by outliers. To compare the robust estimators (M-estimation, S-estimatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef7181335928383340e4dda9a96f827f
https://doi.org/10.37394/23206.2022.21.28
https://doi.org/10.37394/23206.2022.21.28
Publikováno v:
Statistical Journal of the IAOS. 37:1275-1287
This paper proposes three robust estimators (M-estimation, S-estimation, and MM-estimation) for handling the problem of outlier values in seemingly unrelated regression equations (SURE) models. The SURE model is one of regression multivariate cases,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::936ca234366f277678f0a86573ff791f
https://doi.org/10.3233/sji-200734
https://doi.org/10.3233/sji-200734
Publikováno v:
Journal of Advanced Research in Applied Mathematics and Statistics. :1-13
Over the last decades, the Per Capita Personal Income (PCPI) variable wasa commonmeasure of the effectiveness of economic development policy. Therefore, this paper is an attempt to investigate the determinants of personal income by usingspatial panel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bafcf808064651437b1980e9f17ff9bd
https://doi.org/10.24321/2455.7021.202001
https://doi.org/10.24321/2455.7021.202001
Autor:
Ahmed H. Youssef, Moisés Alejandro Alatorre-Jiménez, Alejandro Marín-Medina, Cristina García-Muro, Rocío Villeda-González, Carlos Arturo López-García, Eduardo Esteban-Zubero
Publikováno v:
Iberoamerican Journal of Medicine, Vol 1, Iss 1, Pp 3-15 (2019)
The incidence of community-acquired pneumonia (CAP) ranges from 2-15 cases/1,000 inhabitants/year, being higher in those over 65 or in patients with comorbidities. In Emergency Room (ER) it represents up to 1.35% of the care. Approximately 75% of all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa9274d5150bb027b5f3464c07766e82
https://doaj.org/article/9f56162a3fc24ec1b716bb533ea5bef5
https://doaj.org/article/9f56162a3fc24ec1b716bb533ea5bef5
Publikováno v:
Communications in Mathematical Biology and Neuroscience.
In analysing panel data in which the dependent variable is a binary choice variable taking values 1 or 0 for success or failure respectively, it is feasible to consider the conditional probabilities of the dependent variable. Under strict exogeneity,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b55419f4449495bb13bfb418c7670b85
https://doi.org/10.28919/cmbn/5410
https://doi.org/10.28919/cmbn/5410
Publikováno v:
Applied Mathematical Sciences. 11:2727-2766
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6224d792397f2b4b9a4402f5b1c7a1a
https://doi.org/10.12988/ams.2017.79290
https://doi.org/10.12988/ams.2017.79290
Autor:
Ahmed H. Youssef, Mohamed R. Abonazel
Publikováno v:
Communications in Statistics - Simulation and Computation. 46:3112-3128
This article considers first-order autoregressive panel model that is a simple model for dynamic panel data (DPD) models. The generalized method of moments (GMM) gives efficient estimators for these models. This efficiency is affected by the choice o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1199236648693d0f6766ad8cedf2cb41
https://doi.org/10.1080/03610918.2015.1073307
https://doi.org/10.1080/03610918.2015.1073307
Autor:
Alejandro Marín-Medina, Moisés Alejandro Alatorre-Jiménez, Rocío Villeda-González, Eduardo an-Zubero, Carlos Arturo López-García, Cristina García-Muro, Ahmed H. Youssef
Publikováno v:
Clinical Case Studies and Reports. 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e43946d4688a8476dec6c8714b87c6e
https://doi.org/10.15761/ccsr.1000122
https://doi.org/10.15761/ccsr.1000122
Publikováno v:
Advances and Applications in Statistics. 48:411-428
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::569e79016a8aeb7ce27d1b173cfac112
https://doi.org/10.17654/as048060411
https://doi.org/10.17654/as048060411