M.S. Thesis

M.S. Thesis

Burcu Koç Göltaş, An Intelligent Decision Support System for Crude Oil Trading

Crude oil prices are very volatile as they depend on many factors. Traders in this market, therefore need to constantly monitor different factors affecting the price, which can lead to information asymmetry for individual traders. Therefore, this thesis presents a comprehensive decision support system incorporating fundamental, technical, and sentiment analysis to support the decisions of crude oil traders.

Date: 06.09.2023 / 15:30 Place: A-212

English

Yılmaz Taylan Göltaş, Optimizing Football Lineup Selection Using Machine Learning

Traditionally, football coaches make this decision by analyzing players' match and training performances and by analyzing the data of the opposing team. In this thesis, a new solution to the team selection problem is proposed with a data-driven approach by using the match data of the players and teams, grouping the players based on their positions and roles, considering the opposing team, tactical formation and environmental factors.

Date: 05.09.2023 / 13:00 Place: A-212

English

Volkan Doğan, Deep Learning Classification of Cognitive Workload Levels from EEG Wavelet Transform Images

The study aimed to classify task difficulties using wavelet transform images of EEG signals and deep learning models. The EfficientNet-B0 model achieved the highest accuracy, but its performance varied significantly across individuals and task difficulties, indicating limited generalizability. The study suggests a need for further research to improve model generalizability, optimize performance, and validate the models on larger, more diverse datasets.

Date: 06.09.2023 Place: MODSIMMER Meeting Room

English

Rabia Şeyma Güneş, Forecasting and Reinforcement Learning Strategies for Efficient Energy Exchange in Peer-To-Peer Energy Trading Game Among Nano/Micro Grids: Empirical Analysis

New technologies in distributed energy systems offer solutions for managing demand and generation variability in the grid. Trade between small grids allows cost reduction and system flexibility. This thesis proposes Multi-Agent Reinforcement Learning model for short-term energy trading among peers. It integrates short-term forecasts for load, generation, and price, leading to more accurate decision-making. Real-world data simulations demonstrate improved efficiency and stability compared to rule-based agents. This approach empowers prosumers to respond effectively to dynamic energy markets, enhancing grid reliability, energy efficiency, and sustainability.

Date: 07.09.2023 / 11:30 Place: -

English

Berkay Günay, Investigation of DNA Methylation Changes in Brain and Blood Associated with Excessive Alcohol Consumption Behavior in Wistar Rats

Despite the high mortality and morbidity rates associated with alcohol use disorder (AUD) worldwide, the incomplete understanding of its complex molecular mechanism is the biggest limitation in providing successful treatments to patients. Monozygotic twin studies have found that AUD is about 50-60% heritable, and they have also revealed that environmental factors and epigenetic mechanisms play a role in the etiology of this disorder. In this study, we investigated excessive alcohol consumption related DNA methylation changes in four brain regions and blood in wistar rats to contribute to understanding to the understanding of the etiology of AUD.

Date: 04.09.2023 / 09:30 Place: B-116

English

Ege Yosunkaya, Developing A Virtual Reality Adaptation of The Laparoscopic Surgical Training: A Multimodal Study

This study explores the transformative potential of virtual reality in laparoscopic surgical training. Traditional box trainer implemented as a VR simulation, eliminating the need for physical tools and improved with incorporating feedback from surgeons and participant questionnaires. Results revealed that the VR version, equipped with tutorials, haptic feedback, and assisted grabbing physics, was more usable and accepted. Kinematic analysis showed similarities to physical training, and physiological monitoring revealed increased heart rate and reduced heart rate variability during tasks. This multimodal approach highlights VR's potential to enhance laparoscopic surgical skill development, providing an immersive and realistic training experience.

Date: 01.09.2023 / 10:00 Place: A-212

English

Ahmet Samet Özdilek, ProFAB: Open Protein Functional Annotation Benchmark

As number of proteins increases, computational methods play vital role for accurate function annotation. In spite of these methods, there are issues to compete which are reliable datasets and fair evaluation of performances. To address them, a fair comparison tool, ProFAB, Open Protein Functional Annotation Benchmark is developed. It aids computational and experimental researchers with its easy access to datasets and machine learning algorithms for protein function prediction using Gene Ontology terms and Enzyme Commission numbers.

Date: 21.08.2023 / 11:00 Place: A-212

English

Ömer Faruk Karakaya, A New Approach to Increase Variability and Playability via Game Blending

This thesis presents a novel method that actively blends game levels using advanced procedural generation techniques and maintains the playability of the blended game. It introduces a structured approach for blending additional game elements like game physics, objects, and rules. The research tests various procedural generation techniques against each other, evaluating the novelty, diversity, and complexity of the levels these networks create.

Date: 24.07.2023 / 15:00 Place: A-212

English

Burcu Alakuş Çınar, An Agent-Based Model to Explain Emergence of Dominant Word Orders in Today’s Languages

This study proposes a model to explain dominant word orders emergence and distributions. It integrates preferences observed in newly emerged small deaf communities and explores how new behaviours are adopted through iterated learning. The model examines the transmission of word order preferences through generations, simulates reproduction and community development, and considers possible innate biases. It analyses the effects of language pressures, and network structures on generations. Various scenarios with different parameters are presented, including community size, bias distribution, communication networks, and pressure effects. Results are provided to explain the outcomes.

Date: 21.07.2023 / 13:00 Place: A-212

English

Caner Taş, Comparison of Machine Learning and Standard Credit Risk Models' Performances in Credit Risk Scoring of Buy Now Pay Later Customers

In this study, the performance of machine learning methods in credit risk scoring for "Buy Now Pay Later" customers is compared with the performance of standard credit risk models. Both traditional credit risk models and machine learning algorithms are evaluated using a real dataset. The comparison of models is conducted through variable selection, model training, and performance metrics. The results summarize to what extent machine learning methods outperform traditional models in credit risk assessment for "Buy Now Pay Later" customers. It is expected that this study will provide practical recommendations to improve risk assessment processes for financial institutions and credit providers.

Date: 14.07.2023 / 13:30 Place: A-212

English

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