Yazar "Mert Kantar, Yeliz" için listeleme
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Estimator based on percentiles for log-logistic distribution
Arık, I.; Mert Kantar, Yeliz (2012)In this study, we consider the estimator based on percentiles for log-logistic distribution similar to the study of [6] and we also graph breakdown plots of the estimators that are considered below to have an opinion about ... -
Evaluation of robust estimation methods in estimating weibull parameters for wind energy application
Arık, I.; Mert Kantar, Yeliz; Usta, İlhan; Yenilmez, İsmail (Association for Computing Machinery, 2015)Two-parameter Weibull distribution has been widely-used reference distribution in wind energy studies and thus its parameter estimation methods have been well-studied in the literature. However, the literature have generally ... -
Farklı Olasılık Yoğunluk Fonksiyonları Kullanarak Rüzgar Gücü Potansiyelinin Tahmini
Usta, İlhan; Mert Kantar, Yeliz (2016)Sürekli rassal değişken olarak kabul edilen rüzgâr hızı istatistiksel dağılımlarla karakterize edilir ve ortalama rüzgâr gücü tahminleri yapılır. Weibull dağılımı rüzgar enerjisi alanında kabul edilmiş dağılımdır. Ancak ... -
Generalized Least Squares and Weighted Least Squares Estimation Methods for Distributional Parameters
Mert Kantar, Yeliz (Inst Nacional Estatistica-Ine, 2015)Regression procedures are often used for estimating distributional parameters because of their computational simplicity and useful graphical presentation. However, the resulting regression model may have heteroscedasticity ... -
Improving Gender Equality in Higher Education in Turkey
Aktaş, Semra Günay; Kumtepe, Evrim Genç; Mert Kantar, Yeliz; Ulukan, İbrahim Cemil; Aydın, Sinan; Aksoy, Talha; Er, Fikret (Springer, 2019)Women's representation in education-especially in higher education- is an important part of broader gender equity discussions. The gender imbalance in education is not a new issue; and Turkey is no exception. In fact, this ... -
M-estimation of log-logistic distribution parameters with outliers
Arık, I.; Mert Kantar, Yeliz (DAV College, 2014)Log-logistic distribution is widely-used in the analysis of agricultural, survival, hydrological and economics data. Therefore, its parameters have to be estimated accurately. Generally, traditional estimators such as ... -
Mean-Variance-Skewness-Entropy Measures: A Multi-Objective Approach for Portfolio Selection
Usta, İlhan; Mert Kantar, Yeliz (MDPI AG, 2011)In this study, we present a multi-objective approach based on a mean-variance-skewness-entropy portfolio selection model (MVSEM). In this approach, an entropy measure is added to the mean-variance-skewness model (MVSM) to ... -
A Monte Carlo simulation study on partially adaptive estimators of linear regression models
Mert Kantar, Yeliz; Usta, İlhan; Acıtaş, Şükrü (Routledge Journals, Taylor & Francis LTD, 2011)This paper presents a comprehensive comparison of well-known partially adaptive estimators (PAEs) in terms of efficiency in estimating regression parameters. The aim is to identify the best estimators of regression parameters ... -
A new approach to Lorentz invariance in electromagnetism with hyperbolic octonions
Tanışlı, Murat; Mert Kantar, Yeliz; Demir, Süleyman (Springer Heidelberg, 2012)In this study, after introducing the hyperbolic octonionic (counteroctonion) algebra and its properties, Maxwell's equations with magnetic monopole and currents, Lorenz conditions for the electric, magnetic fields and ... -
A new concept of relative suitability of moment function sets
Shamilov, Aladdin; Giriftinoğlu, Çiğdem; Usta, İlhan; Mert Kantar, Yeliz (Elsevier Science Inc, 2008)In modeling statistical data by using entropy optimization distributions, the choice of a suitable moment function set and various combinations of their elements are very important. It is also important to have criteria ... -
A new estimation approach based on moments for estimating Weibull parameters in wind power applications
Usta, İlhan; Arık, İbrahim; Yenilmez, İsmail; Mert Kantar, Yeliz (Pergamon-Elsevier Science LTD, 2018)This study introduces a new estimation approach that could be used in calculating the Weibull parameters for the estimation of wind power. This new approach, called the method of multi-objective moments (MUOM), proposes ... -
Octonionic Maxwell's equations for bi-isotropic media
Tanışlı, Murat; Mert Kantar, Yeliz (Amer Inst Physics, 2011)In this study, octonions with eight dimensions and their algebra, which are both noncommutative and nonassociative, are presented. Moreover, the general properties of complex octonions with 16 dimensions and the products ... -
On a functional defined by means of Kullback-Leibler measure and its statistical applications
In the present study, we define a functional by means of Kullback-Leibler (K-L) measure for continuous random variables and consider its properties. By virtue of this functional, we suggest a new generalization of K-L ... -
On the performance of the flexible maximum entropy distributions within partially adaptive estimation
Usta, İlhan; Mert Kantar, Yeliz (Elsevier Science BV, 2011)The partially adaptive estimation based on the assumed error distribution has emerged as a popular approach for estimating a regression model with non-normal errors. In this approach, if the assumed distribution is flexible ... -
Parameter estimation using different information-theoretical divergence measures
In this paper, a approach for parameter estimation is presented by using different divergence information measures. A comparison of the proposed approach and usual methods, such as the moment method, the least square method, ... -
Portfolio optimization with entropy measure
Usta, İlhan; Mert Kantar, Yeliz (Acta Press Anaheim, 2007)In portfolio management, the selection of portfolio weights has received considerable interest. Considering the expected return, risk and uncertainty, the portfolio distribution is to be determined. The maximum entropy ... -
A regression model for terminal airspace delays
Çetek, Fulya Aybek; Mert Kantar, Yeliz; Cavcar, Aydan (Cambridge University Press, 2017)Air Traffic Management (ATM) research generally focuses on achieving a safer, more effective and economical air traffic system. The current airspace system has become increasingly strained as the demand for air travel has ... -
Representation of electromagnetic and gravitoelectromagnetic Poynting theorems in higher dimensions
Mert Kantar, Yeliz; Tanışlı, Murat; Demir, Süleyman (TUBITAK, 2014)This study investigates whether the electromagnetic and gravitoelectromagnetic energy conservation equations are obtained together by using octonion algebra or not. Maxwell and Maxwell-like equations for linear gravity ... -
Robust Estimation for Parameters of the Extended Burr Type III Distribution
Mert Kantar, Yeliz; Yıldırım, Vural (Taylor & Francis Inc, 2015)We consider various robust estimators for the extended Burr Type III (EBIII) distribution for complete data with outliers. The considered robust estimators are M-estimators, least absolute deviations, Theil, Siegel's ... -
Rüzgar enerjisi potensiyelinin araştırılmasında Weibull ve Rayleigh dağılımlarının kullanılması
Bu çalışmada, 2005 yılı Temmuz, Ağustos, Eylül ve Ekim aylarında saatlik olarak ölçülen rüzgar hızı verilerine dayanarak, Anadolu Üniversitesi İki Eylül Kampüsü 'ndeki rüzgar enerjisi potansiyeli istatistiksel olarak analiz ...