Akdeniz, Fikri; Roozbeh, Mahdi; Akdeniz, Esra; Khan, Naushad Mamode Generalized difference-based weighted mixed almost unbiased Liu estimator in semiparametric regression models. (English) Zbl 07562237 Commun. Stat., Theory Methods 51, No. 13, 4395-4416 (2022). MSC: 62G08 62J07 PDFBibTeX XMLCite \textit{F. Akdeniz} et al., Commun. Stat., Theory Methods 51, No. 13, 4395--4416 (2022; Zbl 07562237) Full Text: DOI
Akdeniz, Fikri; Roozbeh, Mahdi Efficiency of the generalized-difference-based weighted mixed almost unbiased two-parameter estimator in partially linear model. (English) Zbl 1462.62236 Commun. Stat., Theory Methods 46, No. 24, 12259-12280 (2017). MSC: 62G08 62J07 PDFBibTeX XMLCite \textit{F. Akdeniz} and \textit{M. Roozbeh}, Commun. Stat., Theory Methods 46, No. 24, 12259--12280 (2017; Zbl 1462.62236) Full Text: DOI
Arashi, M.; Nadarajah, Saralees; Akdeniz, Fikri The distribution of the Liu-type estimator of the biasing parameter in elliptically contoured models. (English) Zbl 1368.62091 Commun. Stat., Theory Methods 46, No. 8, 3829-3837 (2017). MSC: 62G08 62G05 62G20 62J07 PDFBibTeX XMLCite \textit{M. Arashi} et al., Commun. Stat., Theory Methods 46, No. 8, 3829--3837 (2017; Zbl 1368.62091) Full Text: DOI
Akdeniz, Fikri; Tabakan, Gülin Restricted ridge estimators of the parameters in semiparametric regression model. (English) Zbl 1167.62062 Commun. Stat., Theory Methods 38, No. 11, 1852-1869 (2009). MSC: 62J07 62G08 62H12 62C05 PDFBibTeX XMLCite \textit{F. Akdeniz} and \textit{G. Tabakan}, Commun. Stat., Theory Methods 38, No. 11, 1852--1869 (2009; Zbl 1167.62062) Full Text: DOI
Akdeniz, Fikri; Styan, George P. H.; Werner, Hans Joachim The general expressions for the moments of the stochastic shrinkage parameters of the Liu type estimator. (English) Zbl 1084.62046 Commun. Stat., Theory Methods 35, No. 1-3, 423-437 (2006). MSC: 62H12 62J05 62J07 PDFBibTeX XMLCite \textit{F. Akdeniz} et al., Commun. Stat., Theory Methods 35, No. 1--3, 423--437 (2006; Zbl 1084.62046) Full Text: DOI
Akdeniz, Fikri; Wan, Alan T. K.; Akdeniz, Esra Generalized Liu type estimators under Zellner’s balanced loss function. (English) Zbl 1072.62054 Commun. Stat., Theory Methods 34, No. 8, 1725-1736 (2005). MSC: 62J05 62C99 62F10 65C60 62J07 PDFBibTeX XMLCite \textit{F. Akdeniz} et al., Commun. Stat., Theory Methods 34, No. 8, 1725--1736 (2005; Zbl 1072.62054) Full Text: DOI
Akdeniz, Fikri; Erol, Hamza Mean squared error matrix comparisons of some biased estimators in linear regression. (English) Zbl 1028.62054 Commun. Stat., Theory Methods 32, No. 12, 2389-2413 (2003). MSC: 62J07 62H12 62J05 PDFBibTeX XMLCite \textit{F. Akdeniz} and \textit{H. Erol}, Commun. Stat., Theory Methods 32, No. 12, 2389--2413 (2003; Zbl 1028.62054) Full Text: DOI
Akdeniz, Fikri More on the pre-test estimator in ridge regression. (English) Zbl 1075.62587 Commun. Stat., Theory Methods 31, No. 6, 987-994 (2002). MSC: 62J07 PDFBibTeX XMLCite \textit{F. Akdeniz}, Commun. Stat., Theory Methods 31, No. 6, 987--994 (2002; Zbl 1075.62587) Full Text: DOI
Akdeniz, Fikri The examination and analysis of residuals for some biased estimators in linear regression. (English) Zbl 1008.62632 Commun. Stat., Theory Methods 30, No. 6, 1171-1183 (2001). MSC: 62J07 PDFBibTeX XMLCite \textit{F. Akdeniz}, Commun. Stat., Theory Methods 30, No. 6, 1171--1183 (2001; Zbl 1008.62632) Full Text: DOI
Sakallıoğlu, Sadullah; Kaçıranlar, Selahattin; Akdeniz, Fikri Mean squared error comparisons of some biased regression estimators. (English) Zbl 1009.62559 Commun. Stat., Theory Methods 30, No. 2, 347-361 (2001). MSC: 62J07 PDFBibTeX XMLCite \textit{S. Sakallıoğlu} et al., Commun. Stat., Theory Methods 30, No. 2, 347--361 (2001; Zbl 1009.62559) Full Text: DOI
Kaçıranlar, Selahattin; Sakallioğlu, Sadullah; Akdeniz, Fikri Mean squared error comparisons of the modified ridge regression estimator and the restricted ridge regression estimator. (English) Zbl 0960.62068 Commun. Stat., Theory Methods 27, No. 1, 131-138 (1998). MSC: 62J07 PDFBibTeX XMLCite \textit{S. Kaçıranlar} et al., Commun. Stat., Theory Methods 27, No. 1, 131--138 (1998; Zbl 0960.62068) Full Text: DOI
Akdeniz, Fikri; Kaçıranlar, Selahattin On the almost unbiased generalized Liu estimator and unbiased estimation of the bias and MSE. (English) Zbl 0937.62612 Commun. Stat., Theory Methods 24, No. 7, 1789-1797 (1995). MSC: 62J05 62J07 62F10 PDFBibTeX XMLCite \textit{F. Akdeniz} and \textit{S. Kaçıranlar}, Commun. Stat., Theory Methods 24, No. 7, 1789--1797 (1995; Zbl 0937.62612) Full Text: DOI
Milliken, George A.; Akdeniz, Fikri A theorem on the difference of the generalized inverses of two nonnegative matrices. (English) Zbl 0365.15003 Commun. Stat., Theory Methods A6, 73-79 (1977). MSC: 15A09 62K10 PDFBibTeX XMLCite \textit{G. A. Milliken} and \textit{F. Akdeniz}, Commun. Stat., Theory Methods A6, 73--79 (1977; Zbl 0365.15003) Full Text: DOI