Browsing by Author "Mert Kantar, Yeliz"
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Anadolu Üniversitesi İki Eylül Kampüsündeki Rüzgar Enerjisi Potansiyelinin Önsel İstatistiksel Analizi
Kurban, Mehmet; Hocaoğlu, Fatih Onur; Mert Kantar, Yeliz (Anadolu Üniversitesi, 2007)Bu çalışmada, 2005 yılı Temmuz, Ağustos, Eylül ve Ekim aylarında 15 s aralıklarla ölçülen rüzgar hızı verilerine dayanarak, Anadolu Üniversitesi İki Eylül Kampusu’ndeki rüzgar enerjisi potansiyeli istatistiksel olarak ... -
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 Spatial Distribution of the Number of Students per Class in Secondary Schools for Rural and Urban Areas in Turkey
Gökçe, Nazlı; Kaya, Erdoğan; Günay Aktaş, Semra; Mert Kantar, Yeliz (Int Business Information Management Assoc-Ibima, 2016)Objective: A change in the education system in Turkey 2013 have negatively affected the number of student per class, which is one of main indicators to explain equal education right. This increase has created unequal ... -
Analysis of the modified weibull distribution for estimation of wind speed distribution
Yenilmez, İsmail; Mert Kantar, Yeliz; Arık, İbrahim; Usta, İlhan (Association for Computing Machinery, 2015)Finding suitable wind speed distribution is one of the most important tasks for the correct estimation of wind energy potential of the specified region. The Weibull distribution is the well-known and suggested distribution ... -
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 ... -
Comparison of Some Estimation Methods of the two parameter Weibull Distribution for Unusual
Since the Weibull distribution has been accepted reference distribution in wind energy field, topics on its parameter estimation methods get much attention. In this context, the literature have generally focused on non-robust ... -
Dağılım parametrelerinin tahmininde kullanılan robust yöntemler
Arık, İbrahim (Anadolu Üniversitesi, 2014)En çok olabilirlik ve momentler tahmincileri dağılımsal parametrelerin tahmininde en yaygın kullanılan yöntemlerdir. Ancak bilinmektedir ki bu yöntemler veride aykırı değer olması durumunda güvenilir olmayan sonuçlar ... -
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 ... -
Distributions of Wind Speed at Different Heights
Mert Kantar, Yeliz; Usta, İlhan; Arık, İbrahim; Yenilmez, İsmail (IEEE, 2016)In this study, the parameters of different distributions such as the Weibull, Rayleigh, Lognormal, Gamma and Generalized Gamma, which are used for modelling wind speed, at the different heights 10 and 30 m, have been ... -
Doğrusal regresyon modeli için m-tahmincilerin incelenmesi
Yıldırım, Vural, [tarih] (Anadolu Üniversitesi, 2012)Robust (Sağlam) regresyon tahmincileri, hataların normal dağılıma uymadığı veya veri setinde aykırı değer bulunması durumunda regresyon modelini en güvenilir şekilde tahmin etmek amacı ile geliştirilmiştir. Bu tez çalışmasının ... -
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 ... -
Estimation of Censored Regression Model in the Case of Non-Normal Error
Yenilmez, İsmail; Mert Kantar, Yeliz; Acıtaş, Şükrü (Yildiz Technical University, 2018)For the censored regression model, it is well-known that while classical least squares estimation yields biased and nonconsistent estimator, maximum likelihood estimator (MLE) is consistent and efficient. Tobit estimator ...