Browsing Ph.D. Theses by Title

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  • Joint inventory and pricing decisions: reference effects and delay sensitive customers 
    Güler, Mehmet Güray. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    We consider joint inventory and pricing problem of a single product with stochastic demand in two different contexts. In the first one, we study a periodic review problem where the demand of the product is subject to ...
  • Leader-follower games for influence spread in social networks 
    Tanınmış, Kübra. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Influence Maximization Problem involves nding a set of individuals in a social network to trigger an in uence/information spread, i.e., a seed set, such that the maximum possible number of individuals are in uenced. In ...
  • Local constraint based analysis in resource constrained scheduling 
    Özdamar, Linet. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1991., 1991.)
    Resource constrained scheduling problems are generally solved by optimization techniques which cannot accomodate large size problems with respect to computation time. Yet, fast and near optimal schedules are required in ...
  • Location-allocation problems with multi-commodity flows: exact and approximate solution methods 
    Akyüz, Mehmet Hakan. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    A multi-commodity and capacitated extension of the Multi-facility Location-Allocation Problem, namely the Multi-commodity Capacitated Multi-facilityWeber Problem (MCMWP) is considered, and exact and approximate solution ...
  • 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 ...
  • Maintenance of a multi-component dynamic system under partial observations 
    Ünlüakın, Demet Özgür. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    This thesis studies the maintenance of a dynamic system consisting of several components which age in time at a given failure rate. The states of the components are hidden. In each decision epoch, the decision of whether ...
  • Mathematical programming and statistical learning approaches for multiple instance learning 
    Lök, Emel Şeyma. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Many real-world applications of classification require flexibility in representing complex objects to preserve the relevant information for class separation. Multiple instance learning (MIL) aims to solve classification problem ...
  • 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 ...
  • Modeling and analysis of a decentralized electricity market: an integrated simulation / optimization approach 
    Sarıca, Kemal. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    In this study, it is aimed to investigate electricity market restructuring and deregulation and understand the implications of a competitive power market based on hourly biddings. An alternating current (AC) transmission ...
  • Modelling and analysis of agent based distributed scheduling systems 
    Kurşun, Mahmut. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    In this study we have introduced a mathematical foundation and a framework for the modeling and analysis of agent based distributed scheduling systems. We defined the basic structure of an object oriented agent based system, ...
  • Multi-objective approaches for multi-target learning 
    Adıyeke, Esra. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Multi-target datasets (MTD) require simultaneous prediction of several variables hence they are considered to be more challenging in terms of predictive tasks compared to single-target datasets. Mining of MTD requires ...
  • Multiobjective linear programming and multiobjective zero-one programming 
    Kızıltan, Gülseren. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1981., 1981.)
  • Network flows with conflict constraints 
    Şuvak, Zeynep. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    It is a commonly used approach to model real life problems as network flow prob lems and they appear in a wide range of areas including telecommunication, wireless networks, transportation, healthcare and scheduling. Our ...
  • Network optimization models with fairness concern for disaster relief operations 
    Erbeyoğlu, Gökalp. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Humanitarian logistics activities, which aim to alleviate the suffering of the population after a sudden and calamitous event, confront us with a large number of interrelated and challenging network optimization problems. ...
  • New neurocomputational approaches for estimating road travel distances and for solving the euclidean traveling salesman problem 
    Aras, Necati. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    Neural networks are among the most rapidly developing new scientific tools. There are numerous publications reporting their success in estimation and optimization. This work concentrates on both of these aspects and applies ...
  • Numeric methods for stochastic disease spread models 
    Yıldız, Zeynep Gökçe. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Disease spread models are important in controlling the new infectious diseases that suddenly threaten the public health. Mathematical tools are especially impor tant to understand the spread of the disease since experiments ...
  • On unidirectional cyclic layouts, Hamiltonian circuits, capacitated vehicle routes and minimal spanning trees 
    Öncan, Temel. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2004., 2004.)
    This thesis consists of four major parts. The first part is on the Unidirectional Cyclic Layout Problem (UCLP). First, new efficient heuristics for the UCLP are proposed based on the ideas originally proposed for two ...
  • 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 ...
  • Optimal control of generalized storage models 
    Doğu, Gülay. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1985., 1985.)
    The purpose of this dissertation is to study to optimal control problem of the generalized storage processes over an infinite planning horizon. The generalization.of the controlled storage process allows for both positive ...
  • Optimal placement, scheduling and routing to maximize lifetime in wireless sensor networks 
    Türkoğulları, Yavuz Boğaç. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    A wireless sensor network consists of distributed autonomous tiny electronic devices called sensors. They have limited energy and capability for sensing, data processing and communication, but they can collectively behave ...

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