Yazar "Mert Kantar, Yeliz" için Fen Fakültesi listeleme
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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 ... -
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 ... -
Spatial Analysis of Unemployment Rate with Literacy Rate and Socioeconomic Development Index for cities of Turkey
Mert Kantar, Yeliz; Günay Aktaş, Semra (Int Business Information Management Assoc-Ibima, 2015)The objective of the study is to investigate the spatial pattern of unemployment rate with socio economic development index (SDI) and literacy rate for 81 cities of Turkey and also the spatial correlation between these ... -
Spatial analysis of unemployment rate with literacy rate and socioeconomic development index for cities of Turkey
Mert Kantar, Yeliz; Günay, Aktaş, S. (International Business Information Management Association, IBIMA, 2015)The objective of the study is to investigate the spatial pattern of unemployment rate with socio economic development index (SDI) and literacy rate for 81 cities of Turkey and also the spatial correlation between these ... -
A Statistical Investigation on Wind Energy Potential of Northwest of Turkey
Usta, İlhan; Mert Kantar, Yeliz; Arık, İbrahim; Yenilmez, İsmail (IEEE, 2016)The northwest of Turkey is an important region which is a rapidly developing industrial center. Thus, energy analysis of this region has a high importance for the region's geopolitical, economic and demographic structure. ... -
A statistical investigation on wind energy potential of Northwest of Turkey
Usta, I.; Mert Kantar, Yeliz; Arık, İbrahim; Yenilmez, İsmail (Institute of Electrical and Electronics Engineers Inc., 2016)The northwest of Turkey is an important region which is a rapidly developing industrial center. Thus, energy analysis of this region has a high importance for the region's geopolitical, economic and demographic structure. ... -
A Study on Estimation of Wind Speed Distribution by Using the Modified Weibull Distribution
The knowledge of the probability density function of wind speed is key information for the determination of wind energy potential of the specified region. In the literature, the Weibull distribution is a widely-used and ... -
Use of MinMaxEnt distributions defined on basis of MaxEnt method in wind power study
Shamilov, Aladdin; Mert Kantar, Yeliz; Usta, İlhan (Pergamon-Elsevier Science LTD, 2008)Knowledge of the wind speed distribution is an important information needed in evaluation of wind power potential. Several statistical distributions have been used to study wind data. The Weibull distribution is the most ... -
Wind speed analysis using the Extended Generalized Lindley Distribution
Mert Kantar, Yeliz; Usta, İlhan; Arık, İbrahim; Yenilmez, İsmail (Pergamon-Elsevier Science LTD, 2018)The wind energy potential of a specified region can be estimated using the distribution of wind speed. Thus, finding appropriate wind speed distribution is essential. Weibull distribution (WD) is the most popular distribution ...