İstatistik Bölümü Tez Koleksiyonu: Recent submissions
Now showing items 101-120 of 130
-
Doğrusal Regresyonda Bozulma Noktasına Sahip Tahminler
(Fen Bilimleri Enstitüsü, 2017-01) -
Genel Etkili Homojen Poısson Süreçlerine Dayanan Bağımlı Birleşik Poısson Süreçleri
(Fen Bilimleri Enstitüsü, 2014)A common shock Poisson process is used to model dependent event frequencies. In this process, a shock may be a big car accident, a particular hurricane, a medical mistake with consequences in a hospital. The common shock ... -
Yaşam Çözümlemesinde Aykırı Değerler
(Fen Bilimleri Enstitüsü, 2014)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. Outliers are the individuals whose survival time is not ... -
Uç Değerler Teorisi ve Riske Maruz Değer
(Fen Bilimleri Enstitüsü, 2014)Value-At-Risk (VaR) is a method, measures the maximum loss of the investment for a given confidence interval and holding period. When the classical VaR models are analyzed, it is shown that these models are based on the ... -
Sıralanabilir Karesel Olumsallık Tablolarında Uyum Parametresi İçeren İlişki Modelleri
(Fen Bilimleri Enstitüsü, 2013)Kappa coefficient is the most popular measure for summarizing degree of agreement between variables in square tables. However, kappa has some unsufficient features for summarizing the tables by a single number. Hence, the ... -
Uygunluk Analizinde Logaritmik Doğrusal Modellerin Kullanımı: Televizyon İzleme Eğilimleri Üzerine Bir Uygulama
(Fen Bilimleri Enstitüsü, 2014)One of the methods used for analyzing categorical variables arranged in contingency tables is correspondence analysis. Correspondence analysis is named as multiple correspondence analysis for three and higher dimensional ... -
Rastgeleleştirilmiş Yanıt Modellerinde Oran ve Ortalama Tahmin Edicileri
(Fen Bilimleri Enstitüsü, 2013)Randomized Response Models(RRM) are used to reduce nonrespondents rates andbiased responses arising from surveys on sensitive subjects such as gambling,alcoholism, sexual abuse, drug addiction, abortion, tax evasion, illegal ... -
Veri Madenciliği Yöntemleri İle Ana Harcama Gruplarının Paylarının Tahmini
(Fen Bilimleri Enstitüsü, 2015)A country's social statistical infrastructure constitute research conducted in the field of income, education, health, labour force and consumption. Institutions and enterprises have hundreds of research done in these areas ... -
Yaşam Çözümlemesinde Eş Zamanlı Yaşam Süreleri
(Fen Bilimleri Enstitüsü, 2015)Survival analysis is generally defined as a set of methods for analyzing data where theoutcome variable is the time until the occurrence of an event of interest. -
Yaşam Verilerinin Meta Analizi
(Fen Bilimleri Enstitüsü, 2013)Nowadays, with the increasing number of studies, it is conferred that many studies conducted with different samples on the same topic, have different results from each other. Meta analysis is the statistical method which ... -
Markov Zinciri Monte Carlo Yönteminin Dinamik Doğrusal Modellere Uygulanması
(Fen Bilimleri Enstitüsü, 2013)This study deals with implementing three different types of dynamic linear models using dlm package in R. These models are the steady model, the linear growth model and the combined model as a second order polynomial model ... -
Destek Vektör Makineleri Üzerine Bir Çalışma
(Fen Bilimleri Enstitüsü, 2014)Support Vector Machines were introduced by Vladamir Vapnik in 1995 as a new-generation technique, learning from training set which is high-dimensional and whose sample size is much small, by creating and solving a quadratic ... -
Kredi Temerrüt Takası Primleri İle Çeşitli Ekonomik Göstergeler Arasındaki İlişkiler
(Fen Bilimleri Enstitüsü, 2013)Determining the economic variables that affect credit default swap spreads which are known as indicator of country risk and modelling these spreadss have great importance in terms of financial world. In this study, after ... -
Karesel Olumsallık Tablolarında Simetrik Olmayan Modeller
(Fen Bilimleri Enstitüsü, 2015)Joint distribution of categorical variables is summarized with contingency tables. Square contingency tables represent the equality of level of row and column variables. The data used for analysis of square contingency ... -
Veri Zarflama Analizi Ve Bir Uygulama
(Fen Bilimleri Enstitüsü, 2015)In this study, Data Envelopment Analysis (DEA) method used in assessing theactivities of the decision making units when there is too much input and output hasbeen examined. The aim in the data envelopment analysis (DEA) ... -
Tabu Arama Algoritmasının Kuyruk Problemine Uygulanması
(Fen Bilimleri Enstitüsü, 2015)Many people buy their vital need for living from a supermarket and they wait in checkout queues. In retail market, management of checkout queue lenght is very important for minimize payroll expences and maximize customer ... -
Ardışık Olasılık Oran Testine Dayalı Kontrol Kartları
(Fen Bilimleri Enstitüsü, 2013)In statistical process controls, control cards are very important tools for testing statistically if the process is in control or not and evaluating the production process. Sequential probability test is a well-known method ... -
Tabakalı Rastgele Örneklemede Örneklem Büyüklüklerinin Genetik Algoritma İle Belirlenmesi
(Fen Bilimleri Enstitüsü, 2014)The studies done by researchers about solving optimization problems date back to a long time ago. Especially, in recent years, some scientists working on the field of optimization have tended to systems exist in nature to ... -
Ülkelerin Uzun Dönem Kredi Notlarının Derecelendirilmesinde Önemli Değişkenlerin Veri Madenciliği Teknikleri Kullanılarak Belirlenmesi
(Fen Bilimleri Enstitüsü, 2013)Developments in all areas of life, following the advancements in technology, has caused the people to face new and complex problems, therefore increasing the need for information and data. In order to utilize increasing ... -
Portföy Optimizasyonunda Değiştirilmiş Parçacık Sürü Optimizasyonu Yaklaşımı
(Fen Bilimleri Enstitüsü, 2014)One of the most studied problem in optimization world is portfolio selection problem which is based on knapsack problems. Portfolio optimization is a NP-hard problem. Because of that heuristic methods are preferred solving ...
