The moments of the operational almost unbiased ridge regression estimator. - Fikri Akdeniz; Güzin Yüksel; Alan T. K. Wan (Appl. Math. Comput., 2004)

The distribution of stochastic shrinkage biasing parameters of the Liu type estimator. - Fikri Akdeniz; Fikri Öztürk (Appl. Math. Comput., 2005)

Further results on the generalized Liu-type estimators under the balanced loss function. - Esra Akdeniz; Fikri Akdeniz; Alan T. K. Wan; Ti Chen (Model. Assist. Stat. Appl., 2007)

Efficiency of a Liu-type estimator in semiparametric regression models. - Esra Akdeniz Duran; Fikri Akdeniz; Hongchang Hu (J. Comput. Appl. Math., 2011)

Computational Method for Jackknifed Generalized Ridge Tuning Parameter based on Generalized Maximum Entropy. - Funda Erdugan; Fikri Akdeniz (Commun. Stat. Simul. Comput., 2012)

Penalized regression via the restricted bridge estimator. - Bahadir Yüzbasi; Mohammad Arashi; Fikri Akdeniz (Soft Comput., 2021)