Browsing Ph.D. Theses by Title

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  • Campaign planning under sequence dependent family setups and co-production in process industry 
    Kalay, Serkan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    We investigate tactical level production planning problem in process industries, with float glass manufacturing being the specific application domain. Process industries are cost intensive, and as a result, efficient usage ...
  • Capacity modeling in aggregate production planning: multi-dimensional clearing functions and iterative linear programming-simulation approaches 
    Albey, Erinç. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this dissertation, the capacity representation in aggregate production planning models (APPM) is investigated by focusing on two main capacity modeling philosophies in the literature, namely the clearing functions (CF) ...
  • Classifier combination methods in pattern recognition 
    Baykut, Alper. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2002., 2002.)
    This thesis studies methodologies to combine multiple classifiers to improve classification accuracy. Different classifiers, training methods and combination algorithms are covered throughout this study. The classifiers ...
  • 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 ...
  • 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 ...
  • Competitive learning with additional information for solving multi-facility weber problem 
    Özkısacık, Kerem Can. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    It is possible to remark that the mathematical formulation of clustering analysis problem is similar to a certain class of location problems. Known as the multi{facility Weber problem, it is a non{convex continuous ...
  • 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 ...
  • 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 ...
  • Coverage, sink location and routing problems in wireless sensor networks 
    Güney, Evren. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Recent advances in electronics and telecommunications have enabled the development of low-cost, low-power multifunctional sensor devices that are powered by batteries and communicating through wireless channels over small ...
  • Data-driven local search heuristics for bilevel network design problems 
    Sevim, İsmail. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In the Network Design Problem (NDP), one aims to design the configuration of a network by installing links between a set of given nodes and determine the flow of a set of commodities over these installed links. In this ...
  • 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 ...
  • Design and analysis of communication systems with high error correction capability through optimization 
    Kabakulak, Banu. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Channel coding is the term used for the collection of techniques that are employed in order to minimize errors which occur during the transmission of digital information from one place to another. Low–density parity–check ...
  • 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 ...
  • Disaster mitigation and humanitarian relief logistics 
    Döyen, Alper. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    In this thesis we are interested in two distinct problems within the disaster management context. These problems are modeled by two-stage stochastic integer programming since stochasticity is inherent in natural disasters. ...
  • Distance-based learning approaches for multiple instance learning 
    Sivrikaya, Özgür Emre. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Multiple Instance Learning (MIL) is a weakly supervised approach that focuses on the labeling of a set of instances (i.e. bags) where the label information of in dividual instances is generally unknown. Many of the earlier ...
  • Efficient simulations in finance 
    Sak, Halis. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Measuring the risk of a credit portfolio is a challenge for financial institutions because of the regulations brought by the Basel Committee. In recent years lots of models and state-of-the-art methods, which utilize Monte ...
  • 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 ...
  • 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, ...
  • Evolutionary approaches to many-objective combinatorial optimization problems 
    Şahinkoç, Hayrullah Mert. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Many-objective evolutionary approaches try to characterize and overcome the challenges posed by the large number of objectives and have been shown to be very e ective for achieving good Pareto approximations. Despite the ...

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