İstatistik Bölümü Tez Koleksiyonu: Güncel gönderi
Toplam kayıt 130, listelenen: 61-80
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Aralıklı Durdurulmuş Veriler ile Yaşam Çözümlemesi
(Fen Bilimleri Enstitüsü, 2019)Censoring is the most important feature that distinguishes survival analysis from other statistical methods. Censored observation means incomplete observation and provides partial information about the time of failure. ... -
Türkiye İşgücü Yapısının Özelliklerinin İncelenmesi:Lojistik Regresyon ve Karar Ağacı Uygulaması
(Fen Bilimleri Enstitüsü, 2019)The purpose of this thesis is threefold. Firstly, to analyze the characteristics of labor force’s structure, secondly, to compose unemployed profile and examine whether there is a change in the unemployed profile over ... -
Kesirli Polinomlar ile Yaşam Modelleri
(Fen Bilimleri Enstitüsü, 2019)The use of regression models with fractional polynomial was proposed to model nonlinear effects of covariates. The inclusion of continuous covariates as continuous in the model and its inclusion in the model as a categorical ... -
Evaluation of Panel Data Models and an Applıcatıon on Ise30
(Fen Bilimleri Enstitüsü, 2019)Panel data is the intersection of time series and cross-section data. The panel data defines change between units or the change in time for each unit, explains these variabilities by some other variables and estimates each ... -
Meteorolojik Mekansal Verilerin İstatistiksel Yöntemler ile Analizi: Çatalan Baraj Gölü Havzası Örneği
(Fen Bilimleri Enstitüsü, 2019)In hydrology, which is a sub-discipline of earth sciences, spatial analysis methods are needed to determine the spatial arial distribution (x, y, z, t) of the hydrometeorological data as point (x, t) time series data. ... -
Yaşam Çözümlemesinde Yapısal Eşitlik Modelleri
(Fen Bilimleri Enstitüsü, 2019)Survival analysis is a collection of statistical methods developed to examine the time elapsed until a given event occurs. The fact that the exact time of occurrence of the event is not known is defined as a discrete-time ... -
Bazı Makroekonomik Göstergelerle Tüketici Fiyat Endeksi Arasındaki İlişkinin İncelenmesi: Türkiye Örneği
(Fen Bilimleri Enstitüsü, 2019)In this study, the relationships between the important indicators of Turkey's economy, such as the consumer price index, the domestic producer price index, the retail sales volume index and the industrial production index ... -
Krom Üretim Miktarı ve Fiyatının Panel Veri Kullanılarak Modellenmesi
(Fen Bilimleri Enstitüsü, 2019)Within the scope of the thesis, by providing the information about the chrome mine, the factors affecting the quarry sales price, quarry sales amount and the right of government have been examined thanks to the data obtained ... -
Nedensellik Analizi ve Gri İlişkisel Analiz İle Performans Sıralaması: G20 Ülkeleri Üzerine Bir Çalışma
(Fen Bilimleri Enstitüsü, 2018-11)In this thesis study, it is aimed to measure and rank the economic performances of countries by using the basic economic parameters specified in the study by using Gray Relational Analysis (GRA) method, which is one of the ... -
THE IMPORTANCE OF FAT-TAILED AND SKEWED DISTRIBUTIONS IN MODELING VALUE-AT-RISK
(Fen Bilimleri Enstitüsü, 2018)Most of the Value-at-Risk models assume that financial returns are normally distributed, despite the fact that they are commonly known to be left skewed, fat-tailed and excess kurtosis. Forecasting Value-at-Risk with ... -
Klasik ve Bayesci Yapısal Eşitlik Modellerinde Parametre Tahminlerinin Karşılaştırılması: Sıralı Kategorik Verilerle Bir Uygulama
(Fen Bilimleri Enstitüsü, 2019)This study compared with the parameter estimation methods of Maximum Likelihood (ML) and Bayesian approximation as Structural Equation Models (SEM) commonly used in analyzing the casual link. In the absence of classical ... -
Boylamsal ve Yaşam Verilerinin Parametrik Bileşik Modellemesi
(Fen Bilimleri Enstitüsü, 2019)Longitudinal data consist of repeated measurements obtained from the same units at certain time intervals, while survival data consists of time until the occurrence of any event under consideration. There are different ... -
Genelleştirilmiş Doğrusal Mekânsal Modellere Koşullu Otoregresif Model Yaklaşımı
(Fen Bilimleri Enstitüsü, 2018)Spatial analysis is a method used to describe spatial patterns on a geographical region. During this analysis, the attributes and location information of the objects forming the spatial data are used. Response variable ... -
Regresyon Süreksizliği Yönteminde Parametrik Olmayan Tahmin
(Fen Bilimleri Enstitüsü, 2018)Regression discontinuity is a quasi-experimental impact evaluation method of assessment which is used in cases where control and effect groups can not be generated before the implementation of the program. In this method, ... -
Yaşam Çözümlemesinde Kümelenmiş Başarısızlık Süresi
(Fen Bilimleri Enstitüsü, 2018)Survival analysis is a collection of statistical methods for analyzing data where the outcome variable is the time until the occurrence of an event of interest. The time is called "failure time" or "survival time". Here, ... -
Risk Analizinde Bulanık Mantığın Kullanılmasına Yönelik Bir Uygulama Çalışması
(Fen Bilimleri Enstitüsü, 2018)In order to be able to produce solutions to the problems we face in our daily lives, researchers are trying to transfer the focused processes to analysis systems as realistically as possible. The success of implementation ... -
Basit Rastgele Örnekleme Yönteminde Kitle Varyans Tahmin Edicilerinin Kitle Ortalamasının Güven Aralıklarında Kullanılması
(Fen Bilimleri Enstitüsü, 2018-07)In this study, some variance estimators in simple random sampling method have been investigated. These estimators have been proposed to use in the estimation of confidence intervals of the population mean in this study. ... -
Medyan Sıralı Küme Örneklemesi Yönteminde Kitle Ortalamasının Tahmini
(Fen Bilimleri Enstitüsü, 2018-10-08)Ranked set sampling methods are used when it is costly or difficult to measure the sampling units precisely with respect to the variable of interest and also when these units can be more easily ranked with respect to the ... -
Örnekleme Kuramında Yüzdelik Tahmin Edicileri
(Fen Bilimleri Enstitüsü, 2018)Economic variables can have extreme values and in this case, these extreme values have a very strong impact on the mean. In such cases, using median and quantiles is more convenient instead of using mean. In literature, ... -
Karesel Olumsallık Tablolarında Model Uyumunun Sapma Ölçüsü ile Belirlenmesi
(Fen Bilimleri Enstitüsü, 2018)The joint distribution of categorical variables is summarized by the contingency table. The R × R dimensional contingency tables in which the variables are cross classified according to the same criteria with the number ...
