Ph.D. Theses: Recent submissions

  • Preventive and corrective maintenance scheduling for vehicles at a single dead-end track under service level agreement 
    Elhüseyni, Murat. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    We introduce the problem of vehicle maintenance scheduling under service level agreement (SLA) and preventive maintenance cycles at a single dead-end track. We show that the problem is NP-Hard. We build MILP model to solve ...
  • Risk analysis and modeling of the maritime traffic in the strait of Istanbul 
    Özlem, Şirin. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    The Istanbul Strait connecting Marmara and Black Sea is one of the narrowest waterways in the world with daily crowded local and transit vessel traffic. Other features such as currents, wind, fog and sharp turns in that ...
  • Lot - sizing and scheduling in flow shops 
    Güngör, Murat. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Lot-sizing is concerned with the product quantities, whereas scheduling considers the specific machines and product sequences. Lot-sizing and scheduling refers to pro cedures that aim to solve these interdependent problems ...
  • Collection system design problem with routing under a pıck - up policy 
    Tekin, Mehmet Tuğrul. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    This thesis is concerned with collection system design for used products obtained from dealers and is an extension of the works by Aras et al. (2008) and Aras and Aksen (2008). The design decisions involve the locations ...
  • Decentralized decomposition methods for block angular linear and integer progamming problems 
    Aydın, M. Aslı. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    In this thesis, we propose Decentralized Benders decomposition and Decentralized Dantzig-Wolfe decomposition for block angular linear programs and Decentralized LShaped Method for block angular integer programs. We exploit ...
  • Empirical assessment and model selection in option pricing 
    Orbay, Berk. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    The majority of empirical option pricing studies consider the distance from the market option prices as the performance metric. Though, this kind of assessment is limited to the objectives of proper hedging of options and ...
  • Energy economy and environment integrated large scale modeling and analysis of the Turkish energy system 
    Işık, Mine. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    Need for energy is constantly increasing as globalization spreads, and is becoming a very important input for economic development. As energy resources are scarce, safe and sustainable supply of energy, efficient use, ...
  • A formal model and a mathematical programming based analysis framework for tactical - level planning of home care systems 
    Güçlü, İlker. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    Home care is a viable alternative to delivering health care services, especially for the elderly. Due to various operational characteristics, home care organizations are significantly different from the traditional ...
  • Graphs of edge-intersecting non-splitting paths 
    Boyacı, Arman. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this work, we introduce and study a new graph class: namely the graphs of Edge-Intersecting Non-Splitting Paths (ENP). First, we consider a special case where the host graph is a tree: the graphs of Edge-Intersecting ...
  • Online due date assignment in dynamic and stochastic scheduling environments with family setups under tardiness and quoted lead time considerations 
    Düzgit, Zehra. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this study, due date assignment problem is addressed in a single machine dynamic and stochastic environment with family setups. A due date is to be assigned for each new job immediately at the time of its arrival. While ...
  • Simultaneous scheduling of machines and the material handling system in a flexible manufacturing system 
    Bilge, Ümit. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1991., 1991.)
    The scheduling of material handling system is a crital issue in a Flexible Manufacturing System (FMS), although it has little importance in a job shop. The purpose of this dissertation is to exploit the interactions between ...
  • Option pricing by simulation 
    Dingeç, Kemal Dinçer. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    The valuation of path dependent and multivariate options require efficient numerical methods, as their prices are not available in closed form. Monte Carlo simulation is one of the widely used techniques. Although simulation ...
  • Efficient stratified sampling for financial risk simulation 
    Başoğlu, İsmail. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Monte Carlo simulation is frequently the only method available for computing nancial risk, particularly under the realistic and complex portfolio models. The naive simulation generally leads to large con dence intervals ...
  • A methodology for developing an optimal and ergonomic keyboard layout for touch typists and its application to Turkish language 
    İşeri, Ali. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    In this study, a new and novel method of developing both ergonomic and efficient keyboard layouts is introduced based on the touch typing principles. A multi objective mathematical model with two objectives is defined. One ...
  • Controlled sink mobility and wireless sensor network lifetime maximization 
    Keskin, M. Emre. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    The design of a Wireless sensor network (WSN) involves the optimal deployment and activity scheduling of the sensors as well as optimal deployment or routing of sinks and optimal routing of data flows. In this thesis, we ...
  • Minimum split coloring 
    Yüzsever, Rıdvan Mert. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Combinatorial optimization is a very important branch of optimization eld. Many problems in the real world such as transportation, scheduling, production, and telecommunication can be modeled as a combinatorial optimization ...
  • Simulation games, complexity and learning 
    Özgün, Onur. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    The main purpose of this research is to assess how systemic complexity a ects performance and learning in interactive simulation games. We design experiments involving two types of games: a growth management game, and a ...
  • Design and development of a large scale energy model 
    Karali, Nihan. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Interest on the sustainability of energy systems has recently increased with the emerging need to mitigate global warming in a global environment experiencing continuous increases in energy demand. Global warming is mainly ...
  • Cournot equilibrium with free entry for capitalistic and workers' enterprises 
    Pinhas, David. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1985., 1985.)
    The purpose of this dissertation is to determine the Cournot Equilibrium with Free Entry for Capitalistic and Workers' Enterprises. An alternative Cournot-like free entry notion to Novshek's CEFE which we call Cournot-Sertel ...
  • Competitive inventory models under demand substitution 
    Fas, Genco. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    This work deals with the equilibrium strategies for substitutable product inventory control systems between two retailers in a nite horizon, two and single period cases. We investigate how a dynamic game framework can be ...

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