Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Olcay Arslan"'
Publikováno v:
Revstat Statistical Journal, Vol 19, Iss 3 (2021)
Parameters of Marshall–Olkin Extended Burr XII (MOEBXII) distribution are usually estimated using maximum likelihood (ML) and least squares (LS) estimation methods. However, these estimators are not robust to the outliers which are often encountere
Externí odkaz:
https://doaj.org/article/c61fc661f78040348d3fdfed957a0320
Publikováno v:
Revstat Statistical Journal, Vol 19, Iss 1 (2021)
This paper proposes finite mixtures of multivariate skew Laplace distributions in order to model both skewness and heavy-tailedness in heterogeneous data sets. Maximum likelihood estimators for the parameters of interest are obtained using the EM alg
Externí odkaz:
https://doaj.org/article/5543e303297d411592fd64d019ea5193
Autor:
FATMA ZEHRA Doğru, OLCAY ARSLAN
Publikováno v:
Revista Colombiana de Estadística, Vol 40, Iss 1, Pp 45-64 (2017)
In this study, we explore a robust mixture regression procedure based on the skew t distribution in order to model heavy-tailed and/or skewed errors in a mixture regression setting. We present an EM-type algorithm to compute the maximum likelihood es
Externí odkaz:
https://doaj.org/article/80bc435813724b73baac0187371c0828
Publikováno v:
Revista Colombiana de Estadística, Vol 38, Iss 1, Pp 75-91 (2015)
We consider one-way analysis of variance (ANOVA) model when the error terms have skew- normal distribution. We obtain the estimators of the model parameters by using the maximum likelihood (ML) and the modified maximum likelihood (MML) methodologies
Externí odkaz:
https://doaj.org/article/53fc132541144b15b9ea11db8a2aa618
Publikováno v:
Revstat Statistical Journal, Vol 15, Iss 3 (2017)
The purpose of this study is to propose robust estimators by using optimal B-robust (OBR) estimation method (Hampel et al. [5]) for the parameters of the generalized half-normal (GHN) distribution. After given the robust estimators, we provide a smal
Externí odkaz:
https://doaj.org/article/49ebb359db7746fe9c64ebd39cd3ebb4
Publikováno v:
Revista Colombiana de Estadística, Vol 38, Iss 2, Pp 371-384
A bimodal extension of the generalized gamma distribution is proposed by using a mixing approach. Some distributional properties of the new distribution are investigated. The maximum likelihood (ML) estimators for the parameters of the new distributi
Externí odkaz:
https://doaj.org/article/e50399a24892441d9759df499b8984b1
Publikováno v:
Revista Colombiana de Estadística, Vol 38, Iss 2, Pp 353-370
The alpha-skew normal (ASN) distribution has been proposed recently in the literature by using standard normal distribution and a skewing approach. Although ASN distribution is able to model both skew and bimodal data, it is shortcoming when data has
Externí odkaz:
https://doaj.org/article/cc16803c5252411085cf1cb99f36b886
Autor:
Olcay Arslan, Şenay Özdemir
Publikováno v:
Statistics. 57:423-443
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::132fdea0c12d25754ddb3481732fef68
https://doi.org/10.1080/02331888.2023.2179054
https://doi.org/10.1080/02331888.2023.2179054
Autor:
Fatma zehra Doğru, Olcay Arslan
Publikováno v:
Journal of the Korean Statistical Society. 52:185-222
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa8bb665f4755cf8314ed442e47b3f84
https://doi.org/10.1007/s42952-022-00196-y
https://doi.org/10.1007/s42952-022-00196-y
Publikováno v:
Metrika. 86:443-453
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd75b896016b21caca192f50731c970c
https://doi.org/10.1007/s00184-022-00877-y
https://doi.org/10.1007/s00184-022-00877-y