Kurum Yazarı "Mert Kantar, Yeliz" Scopus İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Analysis of some flexible families of distributions for estimation of wind speed distributions
Usta, İlhan; Mert Kantar, Yeliz (Elsevier Sci LTD, 2012)The wind speed distribution is the basis for the assessment of wind energy potential needed for the design of wind farms. Therefore, the proper specification of the wind speed distribution is of special importance. In this ... -
Analysis of the upper-truncated Weibull distribution for wind speed
Mert Kantar, Yeliz; Usta, İlhan (Pergamon-Elsevier Science LTD, 2015)Accurately modeling wind speed is critical in estimating the wind energy potential of a certain region. In order to model wind speed data smoothly, several statistical distributions have been studied. Truncated distributions ... -
Analysis of wind speed distributions: Wind distribution function derived from minimum cross entropy principles as better alternative to Weibull function
Mert Kantar, Yeliz; Usta, İlhan (Pergamon-Elsevier Science LTD, 2008)In this study, the minimum cross entropy (MinxEnt) principle is applied for the first time to the wind energy field. This principle allows the inclusion of previous information of a wind speed distribution and covers the ... -
Analyzing the Relationships among the Spatial Characteristics of Cultural Structure, Activities, And the Tourism Demand
Yüncü, Deniz Karagoz; Sezerel, Hakan; Mert Kantar, Yeliz; Aktaş, Semra Günay (Int Business Information Management Assoc-Ibima, 2016)This paper presents the preliminary findings for a research project on the cultural assets and the number of tourist arrivals in Turkey. The primary aim of the study is to elicit the spatial cluster patterns of the two ... -
Biquaternionic reformulation of multifluid plasma equations
Demir, Süleyman; Tanışlı, Murat; Şahin, Neslihan; Mert Kantar, Yeliz (Elsevier Science BV, 2017)Extending the biquaternionic generalization of the Maxwell type equations of compressible fluids, an effort has been introduced for the reformulation of analogous multifluid plasma equations. With the help of an exact ... -
A comparative study for the location and scale parameters of the Weibull distribution with given shape parameter
Mert Kantar, Yeliz; Şenoğlu, Birdal (Pergamon-Elsevier Science LTD, 2008)Nine parametric estimators of the location and scale parameters of a two-parameter Weibull distribution are compared in terms of their bias and efficiency in a simulation study. The estimators considered are the maximum ... -
Comparison of certain value-at-risk estimation methods for the two-parameter Weibull loss distribution
Gebizlioğlu, Ömer L.; Şenoğlu, Birdal; Mert Kantar, Yeliz (Elsevier Science BV, 2011)The Weibull distribution is one of the most important distributions that is utilized as a probability model for loss amounts in connection with actuarial and financial risk management problems. This paper considers the ... -
Comparison of six different parameter estimation methods in wind power applications
Mert Kantar, Yeliz; Kurban, M.; Hocaoğlu, F. O. (2011)In this paper, the different parameter estimation methods such as maximum likelihood method, least square method, weighted least square method, moments method, the method based on quantiles and maximum spacing method for ... -
The distribution of minimizing maximum entropy: Alternative to Weibull distribution for wind speed
In the present study, we have constructed MinMaxEnt distribution alternative to the Weibull distribution for the wind speed. MinMaxEnt distribution minimizes the special maximum entropy functional in the concrete set of ... -
Elec tromagnetic energy conservation with complex octonions
Mert Kantar, Yeliz; Li, M. T.; Demir, Süleyman (2012)Octonions are the eight dimensional hypercomplex numbers that form a noncommutative and nonassociative division algebra. In this study, a general framework for the real, complex octonions and their algebra are provided by ... -
Estimating the location and scale parameters of the Weibull distribution: An application from engineering
Mert Kantar, Yeliz; Şenoğlu, Birdal (Acta Press Anaheim, 2007)There exist various methods for estimating the location and scale parameters of the Weibull distribution. The maximum likelihood estimators (MLE), moment estimators (ME), generalized spacing estimators (GSE), modified ... -
Estimating variances inweighted least-squares estimation of distributional parameters
Mert Kantar, Yeliz (Association for Scientific Research, 2016)Many estimation methods have been proposed for the parameters of statistical distribution. The least squares estimation method, based on a regression model or probability plot, is frequently used by practitioners since its ... -
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 ... -
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 ...