Robust estimation of the location and the scale parameters of shifted Gompertz distribution

dc.authoridAYDIN, Demet/0000-0002-3491-8392
dc.contributor.authorAydin, Demet
dc.contributor.authorAkgul, Fatma Gul
dc.contributor.authorSenoglu, Birdal
dc.date.accessioned2025-03-23T19:30:33Z
dc.date.available2025-03-23T19:30:33Z
dc.date.issued2018
dc.departmentSinop Üniversitesi
dc.description.abstractIn this study, we consider the estimation of the location parameter mu and the scale parameter sigma of the shifted Gompertz distribution. We obtain the closed form estimators of these parameters by using the modified maximum likelihood methodology. We also compare the efficiencies of these estimators with the well-known and widely used least squares and maximum likelihood estimators via Monte-Carlo simulation study in terms of bias, mean square error and deficiency criteria. In addition, we evaluate the performances of the proposed estimators when the data set contains outliers or is contaminated. In other words, the robustness properties of the estimators are investigated. A real data set is analyzed to demonstrate the implementation of the estimation methods at the end of the study.
dc.identifier.doi10.1285/i20705948v11n1p92
dc.identifier.endpage107
dc.identifier.issn2070-5948
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85090364608
dc.identifier.scopusqualityQ3
dc.identifier.startpage92
dc.identifier.urihttps://doi.org/10.1285/i20705948v11n1p92
dc.identifier.urihttps://hdl.handle.net/11486/5102
dc.identifier.volume11
dc.identifier.wosWOS:000437456900006
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherUniv Studi Salento
dc.relation.ispartofElectronic Journal of Applied Statistical Analysis
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectShifted Gompertz distribution
dc.subjectModified likelihood
dc.subjectMaximum likelihood
dc.subjectLeast squares
dc.subjectMonte-Carlo simulation
dc.subjectRobustness
dc.titleRobust estimation of the location and the scale parameters of shifted Gompertz distribution
dc.typeArticle

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