Browsing Master's Theses by Author "Özener, Okan Örsan"
Now showing items 1-20 of 24
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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 ... -
Allocating costs in a lot sizing game using novel machine learning methods
In supply chain management (SCM), effective resource utilization is the key to achieving certain strategic benefits such as minimizing costs, increasing service levels, reducing inventories, increasing responsiveness, and ... -
An applicable approach to automate customer complaints
Customer complaint management is critical and time-consuming process for institutions. For an effective management and increased customer satisfaction, developing an instant and automated reply mechanism is essential. This ... -
An application of digital transformation : predictive maintenance scheduling
Demirel, Kenan Cem (2021-01-18)Current technological developments in the industry and literature with the fourth revolution of industry make it possible to collect accurate data from production processes and develop data-based models to increase production ... -
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 ... -
AUC maximization for binary classification using combinatorial benders cuts
Sakarya, İbrahim Edhem (2019-06-11)The purpose of this study is to maximize the area under Receiver Operating Characteristic curve for binary classi cation problems using a scoring-based mixed integer linear programming formulation. We investigate exact ... -
Avoiding short shot quality failure in injection molding machine
The Plastic injection molding machine (IMM) has been one of the most preferred manufacturing methods since its invention and continues its development in parallel with the advancing technology. The demand for faster, better ... -
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 ... -
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 ... -
Exact approaches for the no wait flowshop problem
Tuzcu, Ahmet Emir (2019-06-11)In this study, no wait flow shop problem, which is a variant of permutation flow shop, is investigated. In a no wait flow shop, after processing of a job is started, it must be processed completely without any delay or ... -
Experimental analysis of RF based multi plane diffraction with over the air active cellular signal measurements
Aytekin, Ali (2021-01-13)In our study, mathematical modelling of single-plane diffraction (SPD) and multi-plane diffraction (MPD) architectures based on RF waves is created as theoretical. Free space, SPD and MPD based experimental studies are ... -
Finding the determinants of player market value in association football using FIFA video game data
Futbol, son onyıllarda dünyadaki en popüler sporlardan biri haline gelmiştir. Artan popülerliği ile birlikte futbol, büyüyen milyar dolarlık bir pazar halini almıştır. Büyük Avrupa liglerindeki üst düzey oyuncuların ... -
A location-routing problem for waste oil collection
Varandi, Fahriye Naderi (2016-06)This thesis is motivated by a real-world waste cooking oil collection system. Specifically, we focus on a biodiesel production company, which regularly collects waste cooking oil from di erent sources such as fast food ... -
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 ... -
Modern data management strategies for machine learning tasks: A sports analytics use case on cloud platform
There is no doubt that data is the most valuable asset today. The efforts of enterprises in digital transformation and creating a data-driven culture are the most concrete indicators of this. Nowadays, where data transforms ... -
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 ... -
Multilabel classification with neural network
Multi-label classification has huge importance for several applications, it is also a challenging research topic. It is a kind of supervised learning that contains binary targets. The distance between multilabel and binary ... -
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. ... -
A novel sampling technique and gradient boosting tree-based approach for cross-channel fraud detection
The most recent research on hundreds of financial institutions uncovered that only 26% of them have a team assigned to detect cross-channel fraud. Due to the developing technologies, various fraud techniques have emerged ... -
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 ...
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