Dept. of Industrial Engineering - Ph.D. / Sc.D.
Recent Submissions
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Three essays in the interface of optimization with mechanism design, nonexclusive competition, and prophet inequalities
(Bilkent University, 2022-09)Mechanism Design. We consider the mechanism design problem of a principal allocating a single good to one of several agents without monetary transfers. Each agent desires the good and uses it to create value for the ... -
Norm minimization-based convex vector optimization algorithms
(Bilkent University, 2022-08)This thesis is concerned with convex vector optimization problems (CVOP). We propose an outer approximation algorithm (Algorithm 1) for solving CVOPs. In each iteration, the algorithm solves a norm-minimizing scalarization ... -
Risk-averse multi-armed bandit problem
(Bilkent University, 2021-08)In classical multi-armed bandit problem, the aim is to find a policy maximizing the expected total reward, implicitly assuming that the decision maker is risk-neutral. On the other hand, the decision makers are risk-averse ... -
Deterministic and stochastic team formation problems
(Bilkent University, 2021-01)In various organizations, physical or virtual teams are formed to perform jobs that require different skills. The success of a team depends on the technical capabilities of the team members as well as the quality of ... -
Radio communications interdiction problem
(Bilkent University, 2020-01)Tactical communications have always played a pivotal role in maintaining effective command and control of troops operating in hostile, extremely fragile and dynamic battlefield environments. Radio communications, in particular, ... -
Essays on bilateral trade with discrete types
(Bilkent University, 2019-10)Bilateral trade is probably the most common market interaction problem and can be considered as the simplest form of two sided markets where a seller and a buyer bargain over an indivisible object subject to incomplete ... -
Optimizing airline operations under uncertainty
(Bilkent University, 2019-06)Fluctuations in passenger demand, airport congestion, and high fuel costs are the main threats to airlines' profit, thereby need to be carefully addressed in airline scheduling problems. This study takes an advantage of ... -
Network design problems and value of control mechanisms in power systems
(Bilkent University, 2019-05)Power systems planning and operations is one of the most challenging problems in energy field due to its complex, large-scale and nonlinear nature. Operating power systems with uncertainties and disturbances such as ... -
Green location and routing problems with conventional vehicles and drones
(Bilkent University, 2019-05)Green Location and Routing Problems extend the network design problems that consider location and routing decisions by explicitly accounting environmental impacts such as CO2 emissions caused by fuel or energy consumption ... -
Risk-averse multi-stage mixed-integer stochastic programming problems
(Bilkent University, 2019-01)Risk-averse multi-stage mixed-integer stochastic programming problems form a class of extremely challenging problems since the problem size grows exponentially with the number of stages, they are non-convex due to ... -
Age and lifetime based policies for perishable items
(Bilkent University, 2018-10)Many inventory systems hold items which perish after a specific time. Upon perishing, the inventory level falls down to zero which may incur irreparable costs to the system. Therefore, developing a genius control policy ... -
Concepts and analysis in facility location under uncertainty : applications to 1-median problem
(Bilkent University, 2001-08) -
Terrain visibility and guarding problems
(Bilkent University, 2017-10)Watchtowers are located on terrains to detect fires, military units are deployed to watch the terrain to prevent infiltration, and relay stations are placed such that no dead zone is present on the terrain to maintain ... -
Exact solution approaches for non-Hamiltonian vehicle routing problems
(Bilkent University, 2017-07)In this thesis, we study di erent non-Hamiltonian vehicle routing problem variants and concentrate on developing e cient optimization algorithms to solve them. First, we consider the split delivery vehicle routing problem ... -
Designing intervention strategy for public-interest goods
(Bilkent University, 2016-09)Public-interest goods, which are also referred as goods with positive externalities, create benefits to individual consumers as well as non-paying third parties. Some significant examples include health related products ... -
Robust portfolio optimization with risk measures under distributional uncertainty
(Bilkent University, 2016-07)In this study, we consider the portfolio selection problem with different risk measures and different perspectives regarding distributional uncertainty. First, we consider the problem of optimal portfolio choice using the ... -
Scheduling in flexible robotic manufacturing cells
(Bilkent University, 2006)The focus of this thesis is the scheduling problems arising in robotic cells which consist of a number of machines and a material handling robot. The machines used in such systems for metal cutting industries are ... -
Quadratic assignment problem : linearizations and polynomial time solvable cases
(Bilkent University, 2006)The Quadratic Assignment Problem (QAP) is one of the hardest combinatorial optimization problems known. Exact solution attempts proposed for instances of size larger than 15 have been generally unsuccessful even ... -
Optimization of transportation requirements in the deployment of military units
(Bilkent University, 2005)We study the deployment planning problem (DPP) that may roughly be defined as the problem of the planning of the physical movement of military units, stationed at geographically dispersed locations, from their home ... -
Stochastic joint replenishment problem : a new policy and analysis for single location and two eclehon inventory systems
(Bilkent University, 2005)In this study we examine replenishment coordination strategies for multiple item or multiple location inventory systems In particular we propose a new parsimonious control policy for the stochastic joint replenishment ...
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