Başlık için Makale Koleksiyonu listeleme
Toplam kayıt 129, listelenen: 83-102
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Near optimal step size and momentum in gradient descent for quadratic functions
(Scientific Technical Research Council Turkey-Tubitak, 2017)Many problems in statistical estimation, classification, and regression can be cast as optimization problems. Gradient descent, which is one of the simplest and easy to implement multivariate optimization techniques, lies ... -
A new approach for estimating the parameters of Weibull distribution via particle swarm optimization: An application to the strengths of glass fibre Cheek tor data
(Elsevier Sci LTD, 2019)Three-parameter Weibull is one of the most popular and most widely-used distribution in many fields of science. Therefore, many studies have been conducted concerning the statistical inferences of the parameters of Weibull ... -
A New Approach for Parameter Estimation in Fuzzy Logistic Regression
(University Sistan & Baluchestan, 2018)Logistic regression analysis is used to model categorical dependent variable. It is usually used in social sciences and clinical research. Human thoughts and disease diagnosis in clinical research contain vagueness. This ... -
A new estimation approach based on moments for estimating Weibull parameters in wind power applications
(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 ... -
A New Method of Approximation For Fuzzy Membership Function with Application
(2017)In the present study we have formulated a new Maximum Fuzzy Entropy Problem (Max(F)EntP) for fuzzy membership function and proposed sufficient conditions for existence of its solution. Mentioned problem consists of ... -
A New Method of Approxımatıon for Fuzzy Membershıp Functıon with Applıcatıon
(2017)In the present study we have formulated a new Maximum Fuzzy Entropy Problem (Max(F)EntP) for fuzzy membership function and proposed sufficient conditions for existence of its solution. Mentioned problem consists of ... -
A new weighted distribution as an extension of the generalized half-normal distribution with applications
(Taylor & Francis LTD, 2018)In this study, a new extension of generalized half-normal (GHN) distribution is introduced. Since this new distribution can be viewed as weighted version of GHN distribution, it is called as weighted generalized half-normal ... -
On a functional defined by means of Kullback-Leibler measure and its statistical applications
(2006)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 Identifiability of Finite Mixtures Based on the Union of Logarithmic Series and Discrete Rectangular Families
(Springer, 2009)In this paper, finite mixtures of the union of Logarithmic Series and Discrete Rectangular families are proved to be identifiable. The sufficient condition for the identifiability of finite mixtures given by Atienza et al. ... -
On the performance of the flexible maximum entropy distributions within partially adaptive estimation
(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 ... -
One-step M-estimators: Jones and Faddy's skewed t-distribution
(Taylor & Francis LTD, 2013)One-step M (OSM)-estimator needs some initial/preliminary estimates at the beginning of the calculation process. In this study, we propose to use new initial estimates for the calculation of the OSM-estimator. We consider ... -
Otokorelasyonlu hatalara sahip görünüşte ilişkisiz regresyon denklemlerinin kestirimi
(1998)Görünüşte ilişkisiz regresyon denklemlerine ilişkin hataların hem aynı zamanda ilişkili hemde otokorelasyonlu olduğu durumda parametre tahminlerinde etkinlik kaybını önlemek gerekir. Çalışmada herbir denklemin birinci ... -
Öğrenci başarı notları için robust faktör analizi uygulaması
(2006)Faktör analizi, yaygın kullanılan çok değişkenli bir analiz tekniğidir. Faktör analizinin temelinde varyans-kovaryans matrisi ve korelasyon matrisi hesaplanması aşaması bulunmaktadır. Asal bileşenler analizi, faktör analizi ... -
Parameter estimation using different information-theoretical divergence measures
(2006)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, ... -
Performance of Shannon’s Maximum Entropy Distribution Under Some Restrictions: an Application on Turkey’s Annual Temperatures
(2015)İstatistik biliminde entropi oldukça önemli bir yere sahiptir. Son yıllardaki çalışmalarda entropinin neredeyse bilimin her dalında yer aldığı görülebilir. İnformasyon teorisinde, Entropi, rassal bir değişkenin belirsizliğinin ... -
Regresyon analizinde çoklu bağıntı sorununun (multicollinearity) incelenmesi ve uygulanması
(1996)Bir regresyon analizinde araştırmacılar çoklu bağıntı (multicollinearity) sorunu ile çok sık karşılaşmaktadırlar. Açıklayıcı değişkenlerden bir veya birkaçının diğer açıklayıcı değişkenler tarafından iyi açıklandığı zaman, ... -
The relationship between environment and income: Regression spline approach
(2013)This paper examines the relationship between economic growth and carbon dioxide (CO2) emissions, the dominant contributor to the greenhouse effect, in Turkey. For time series data for the period 1980-2009 taking into account ... -
The Relationship Between Parental Defense Intensity and Nest Site Characteristics in Eurasian Magpie (Pica Pica L.) - an Assessment With the Classification Methods
(Corvinus University Budapest, 2017)Nest defense behavior varies among species and depends on different factors. However little is known of the influence of urbanization and nest characteristics on the nest defense intensity as parental investment of the ... -
Reliability and validity of Turkish version of the impact on family scale: Assessment of depressive symptoms and quality of life in mothers with cerebral palsied children
(2009)The pragmatic aims of this study were to investigate the reliability and validity of the Turkish version of the Impact on Family Scale (IFS) and to evaluate the impact of having disabled children on mothers. Two hundred ... -
Ridge-Type MML Estimator in the Linear Regression Model
(Springer International Publishing Ag, 2019)Ridge regression is widely used to deal with the multicollinearity problem. However, traditional ridge estimator (Hoerl and Kennard 1970) loses its efficiency in the presence of outliers, since it is obtained based on least ...