Browsing Master's Theses by Author "Ekici, Ali"
Now showing items 1-18 of 18
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An adaptive large neighborhood search for the multi-compartment inventory routing problem
Gültekin, Ceren (2021-06-10)In this thesis study, we concentrate on an inventory routing problem with a fleet of multi-compartment vehicles which enables the distribution of different products to customers on a delivery route. Using separate compartments ... -
An application of unrelated parallel machine scheduling with sequence-dependent setups at Vestel Electronic
Sarıkaya, Merve Burcu (2017-08)Vestel Electronics produces LCD/LED televisions and has a significant market share in consumer electronics sector in Europe. TV manufacturing is planned based on a make-to order strategy, and Vestel uses 15 assembly lines ... -
Coordinated inventory planning for humanitarian relief agencies
Karaca, Meserret (2016-07)Pre-positioning relief supplies in strategic locations around the world is essential for effective disaster response, especially during the critical 72 hours immediately following the disaster. Most of the existing studies ... -
Creating an evacuation plan during an emergency by coordinating vehicles
Bacaksız, Hazal (2018-10)As disaster relief operations required quick and e ective service, especially evacuating victims from disaster area will be more problematic. In this paper, the problem is about evacuating the people who need service after ... -
An exact approach for a dynamic workforce scheduling problem
Koç, Ersin (2018-01)Taking into account the global and national rules and regulations, assigning a given number of employees to planned shifts while paying attention to required working hours, rest times and off day/days is one of the most ... -
Facility location with supplier selection under quantity discount
Emirhüseyinoğlu, Görkem (2017-07)The purpose of this study is to identify the locations of distribution facilities and choose the suppliers in a two echelon system where items are purchased from suppliers under quantity discount policy and distributed to ... -
Metaheuristic approaches for maximum blood collection problem
Thanks to recent technological and medical advances, blood components can now be extracted from whole blood after a donation. One of such components is the platelet, which has a wide range of uses in medical fields, including ... -
Multi-compartment inventory routing problem with adjustable compartment sizes
Ölmez, Ömer Berk (2021-06-10)In this study, we focus on a problem where the supplier manages the customers’ in ventories and coordinates the distribution of multiple products to customers. Hereby the supplier can minimize the transportation costs by ... -
Neural network estimatorsfor optimal tour lengths of TSP instances with arbitrary node distributions
To achieve operational efficiency in logistics, we need to solve complex routing problems. Due to their complexity, these problems are often solved sequentially, i.e., using cluster-first route-second (CFRS) type frameworks. ... -
Open-end bin packing problem with conflicts
In this thesis study, we focus on a new variant of the famous Bin Packing Problem (BPP) called the Open-End Bin Packing Problem with Conflicts (OEBPPC) which combines the Open-End Bin Packing Problem (OEBPP) and the Bin ... -
Robust scheduling for parallel machines with sequence dependent setup times and uncertain breakdowns
Top, Ayşenur Betül (2017-08)In this study, machine scheduling activities in the plastic injection production facility of a company competing in electronic sector is investigated. The company designs the products and picks order from customers for ... -
Routing and inventory loading problem for heterogeneous vehicle fleet with compartments
Yılmaz, Türkay Umut (2018-05)This thesis focuses on multi compartment heterogeneous vehicle fleet routing problems for the case of incompatible products dedicated to separately within the compartments. In order to supply the different product demand ... -
Service level satisfaction during shortages for health networks: base stock inventory and transshipment policies
Bozkır, Cem Deniz Çağlar (2018-05)In this study, we consider a system of healthcare providers, which face the same uncertain supply disruptions (e.g., regional, nationwide, or worldwide drug shortages). Each hospital observes a stochastic demand and if ... -
Single machine scheduling with sequence dependent setup times
Lefkur, Burak (2021-06-10)In this thesis, we study a single machine scheduling problem with sequence dependent setup times where the jobs are processed in shifts with constant length. There is a certain amount of time between each pair of consecutive ... -
Solving a modified TSP problem by a greedy heuristic for cost minimization
Çal, Murat (2017-06)Photographing a large area in an instant is only made possible by satellites. Satellites are able to help reducing the time required for the photographing/monitoring process, however, satellite images are not available all ... -
A split delivery vehicle routing problem for daily tobacco delivery
One of the Turkey's largest cigarette manufacturer, located in Izmir, receives distributors' orders from all over Turkey every day. Processed and packed cigarettes are distributed to all distributors in different locations ... -
A syncronized routing problem for restoring inter-dependent infrastructure networks
Sevindik, Büşra (2018-05)Disasters may cause significant damages in lifeline infrastructure systems (such as gas, power, water) and lead to long-lasting failures. It is important to repair the damaged components and restore the affected infrastructures ... -
Transportation planning for the relief items distribution during an emergency
Çankaya, Emre (2017-01)We study the inventory slack routing problem (ISRP) to improve planning of distribution of the relief supplies, which is a critical issue in emergency preparedness and response. The authority officials construct their ...
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