• Uç Değerler Teorisi ve Riske Maruz Değer 

      Altun, Emrah (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 ...
    • Uç Değerler Teorisi ve Türkiye Deprem Verisi Üzerine Bir Uygulama 

      Akkoyun, Serpil Güney (Fen Bilimleri Enstitüsü, 2015)
      In this study, Extreme Value Theory (EVT) has been studied broadly. In practice, contrary to the popular applications (hydrology, meteorology, economy, etc.) we did an analysis of the seismic data which is new in the Turkish ...
    • Uyarlanabilir Küme Örneklemesinde Oransal Tahminler 

      Kınacı, Emel (Fen Bilimleri Enstitüsü, 2018)
      In this study, simple and ratio estimators of Horvitz-Thompson and Hansen-Hurwitz are investigated in the literature in order to obtain an estimate of population mean in adaptive cluster sampling. These estimators do not ...
    • Uygunluk Analizinde Logaritmik Doğrusal Modellerin Kullanımı: Televizyon İzleme Eğilimleri Üzerine Bir Uygulama 

      Erdem, Atakan (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 ...
    • Uzun Süreli Çalışmalarda Ma(1) ve Arma(1,1) Otokorelasyonlu Hatalara Sahip Doğrusal Karma Etkiler Modelleri için Örneklem Büyüklüğünün Belirlenmesi 

      Bahçecitapar, Melike (Fen Bilimleri Enstitüsü, 2012)
      The aim of the study is to determine sample sizes for the number of subjects and the number of repeated measures for a Linear Mixed Effects Model (LMM) with random intercept and slope in the analysis of longitudinal data ...
    • Ülkelerin Uzun Dönem Kredi Notlarının Derecelendirilmesinde Önemli Değişkenlerin Veri Madenciliği Teknikleri Kullanılarak Belirlenmesi 

      Altunkaya, Hayrettin İnan (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 ...
    • Veri Madenciliği Yöntemleri İle Ana Harcama Gruplarının Paylarının Tahmini 

      Ahi, Levent (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 ...
    • Veri Zarflama Analizi Ve Bir Uygulama 

      Sarı, Zuhal (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) ...
    • Veri Zarflama Analizinin Robust Coplot Yöntemi İle Grafiksel Gösterimi 

      Söylemez, Arslan (Fen Bilimleri Enstitüsü, 2015)
      The term of productivity and the term of efficiency, two important indicators of performance, are used interchangeably in daily life, although in reality the meanings they have are different from each other. The term of ...
    • Yarı Parametrik Regresyon Modelinde Etkili Gözlem Analizi 

      Türkan, Semra (Fen Bilimleri Enstitüsü, 2012)
      The aim of thesis is to develope diagnostics, used to detect influential observations in linear regression model, for semiparametric regression model and examine whether the developed diagnostics are successful or not in ...
    • Yaşam Çözümlemesinde Aykırı Değerler 

      Tuncer, Nuray (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 ...
    • Yaşam Çözümlemesinde Eş Zamanlı Yaşam Süreleri 

      Keskin, Sena (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 Çözümlemesinde İyileşme Modelleri 

      Kara, Pınar (Fen Bilimleri Enstitüsü, 2017)
      Survival analysis is generally defined as a group of statistical methods for analyzing the data where the outcome variable is the time until the occurrence of an event of interest. Various statistical models differ than ...
    • Yaşam Çözümlemesinde Kümelenmiş Başarısızlık Süresi 

      Kutay, Sümeyye (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, ...
    • Yaşam Çözümlemesinde Yapısal Eşitlik Modelleri 

      Karakaş, İdil (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 ...
    • Yaşam Çözümlemesinde Zayıflık Modelleri 

      Yeğen, Diren (Fen Bilimleri Enstitüsü, 2015)
      The subject of survival analysis is the status of an event, whether it takes place or not in an observation process. Various statistical methods differ than classical methods have been used in survival analysis.The Cox ...
    • Yaşam Verilerinin Meta Analizi 

      Yeniay, Hatice (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 ...
    • Yazılım Test Planlama ve Raporlama Aracı'nın Tasarlanması ve Kodlanması 

      Kasapoğlu, Mustafa (Fen Bilimleri Enstitüsü, 2019-09-27)
      In today's software world, besides increasing the expectation of quality software, planning of software testing activities and efficient use of resources is gaining importance due to constraints of qualified personnel, ...
    • Yinelemeli Sinir Ağları ile Finansal Veri Tahmini 

      Keçeci, Ekin (Fen Bilimleri Enstitüsü, 2020-08)
      Recurrent Neural Network is an artificial neural network model which the outputs are re-included to network input in every iteration. The biggest advantage of recurrent neural networks is that they consider the variation ...