Graduate School of Informatics, Thesis

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Thesis (1055)

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Akyol, Mehmet Ali (2)
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1998 - 1999 (3)
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2010 - 2019 (495)
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Master Thesis (797)
Ph.D. Thesis (258)

Recent Submissions

Mitigating Spatial Disorientation via Spatial Audio: A Psychoacoustics Study Cengiz, Gamze; Çakır, Murat Perit; Hacıhabiboğlu, Hüseyin; Department of Cognitive Sciences (2026-9-04) Spatial disorientation (SD) is a perceptual phenomenon affecting pilots, implicated in roughly one-fifth of USAF Class A aviation mishaps. While the vestibular, visual, and auditory sys- tems collectively maintain spatial ...
EFFICIENT MULTIMODAL CNN-TRANSFORMER ARCHITECTURE WITH FEATURE DISTILLATION FOR REMOTE SENSING UNDER MISSING MODALITIES Moridsedaghat, Laya; Akagündüz, Erdem; İREM, ÜLKÜ; Department of Data Informatics (2026-9-3) Multimodal remote sensing semantic segmentation can benefit from combining different types of spectral information, such as RGB, near-infrared (NIR), and shortwave infrared (SWIR) bands. Since each modality provides differ...
AN ANALYSIS OF INCIDENT INVESTIGATION DURATION PERFORMANCE IN HOME HEALTH CARE Korkmaz, Ramis; Özkan Yıldırım, Sevgi; Department of Information Systems (2026-9-03) Incident management systems play an important role in documenting adverse events and supporting organizational learning in healthcare. However, while incident reporting and investigation quality have received considerable ...
PHYLOGENETIC AND POPULATION GENOMIC ANALYSES OF THREE HISTORICAL AND ANCIENT LEOPARD (PANTHERA PARDUS) GENOMES FROM ANATOLIA Yıldız, Nisan; Somel, Mehmet; Acar, Aybar Can; Department of Bioinformatics (2026-9-03) Leopards, once widely distributed across Eurasia and Africa, are now either extinct or in decline in most of their historical range, with several endangered populations including the Persian Leopard P. p. tulliana. Despite...
Layer-wise structural and mechanistic interpretation of OpenVLA using controlled perturbations Yıldız, Turgay; Özge, Umut; Ataman, Duygu; Department of Cognitive Sciences (2026-9-02) Limitations of conventional policies in robot learning have driven the adoption of large-scale pretrained models, known as foundation models, leading to the emergence of Vision-Language- Action (VLA) models. Although VLA m...
SALGINTR: Development and Evaluation of a Digital Participatory Surveillance System to Monitor Influenza-like Illness in Türkiye Based on Self-Reported Data from A Physician Cohort Öntaş, Eray; Aydın Son, Yeşim; Güçlü, Hasan; Department of Medical Informatics (2026-9-2) Influenza sentinel surveillance is laboratory-anchored but narrow in coverage, slow and costly to run. We developed SALGINTR, a physician-based digital participatory system in which physicians self-report their own weekly ...
GENERATIVE LANGUAGE MODELS VERSUS ENCODER-BASED LANGUAGE MODELS FOR MULTILINGUAL PHISHING EMAIL DETECTION Bor, Nesil; Acar, Aybar Can; Department of Cybersecurity (2026-9-2) This thesis evaluates 25 language models to compare generative and classification architectures for phishing email detection in resource-constrained local environments. A major challenge in modern cybersecurity is the lack...
VOCABULARY-AWARE DISTILLATION OF VISION-LANGUAGE MODELS FOR GROUNDED, EXPLAINABLE SCENE UNDERSTANDING Akyön, Fatih Çağatay; Temizel, Alptekin; Department of Modeling and Simulation (2026-9-1) This thesis proposes vocabulary-aware distillation of vision-language models for efficient domain-specific scene understanding. Its central contribution is Vocabulary-Aware Recall (VAR), a proposed loss that retains cross-...
GRAPH-GUIDED RETRIEVAL-AUGMENTED GENERATION FOR ENTERPRISE ELECTRONIC PRODUCT DOCUMENTATION Özen, Şeymanur; Temizel, Tuğba Taşkaya; Department of Data Informatics (2026-8-31) Technical documentation for enterprise electronic products is a primary source of engineering and product knowledge. It spans several formats, such as datasheets and brochures, each presenting information differently: broc...
Benchmarking and reducing hallucination in large language models through hypothetical terms Uluoğlakcı, Cem; Taşkaya Temizel, Tuğba; Department of Information Systems (2026-8-31) Supervised fine-tuning biases language models toward answering even without relevant knowledge, producing confident, unsupported statements, a failure better described as confabulation than hallucination. Training models t...
Large language models for UML diagram generation: evaluating and improving local models against a hosted reference model Ateş, Onur; Günel Kılıç, Banu; Department of Information Systems (2026-8) Large language models and agentic tools are taking on more of the implementation phase, and the developer’s role is shifting toward defining intent and verifying that the output matches it. Code is generated more rapidly a...
Multimodal expression of inner states in children and adults during narrative retelling İnce, Ayşe Aybüke; Karadöller Astarlıoğlu, Dilay Zeynep; Department of Cognitive Sciences (2026-7) Language is inherently multimodal, and gestures and facial expressions can convey information that is redundant with, complementary to, or absent from speech. Children, in particular, have been shown to benefit from these ...
PROMETHEUS: TOWARDS INDUSTRIAL FOUNDATION MODELS FOR CONTINUOUS PRODUCTION ENVIRONMENTS Özden, Baran; Koçyiğit, Altan; Gökalp, Mert Onuralp; Department of Information Systems (2026-6-26) Foundation models have revolutionized artificial intelligence in language and vision, yet no comparable architecture exists for the continuous production environments of heavy industry. Today, process industries deploy tas...
ANALYZING GENE REPLICATION TIME USING DNA REPLICATION TIME Tercan, Abdullah; Otlu Sarıtaş, Burçak; Department of Bioinformatics (2026-6-23) DNA replication, while essential for genetic inheritance, is also a significant source of mutations. This process is highly orchestrated, with different genomic regions replicating at specific times during the S phase of t...
AN LLM-POWERED CONVERSATIONAL ANALYTIC SYSTEM FOR INTELLIGENT DATA DISCOVERY ACROSS MESH-FABRIC DATA ENVIRONMENTS Şayli, Elif Beril; Koçyiğit, Altan; Department of Information Systems (2026-6-18) Today, modern organizations operate in increasingly complex data environments where traditional centralized architectures struggle to meet demands for scalability and agility. A persistent challenge is the effective manage...
A SUCCESS ASSESSMENT MODEL AND METHODOLOGY FOR DATA SCIENCE PROJECTS Gökay, Gonca; Eren, Pekin Erhan; Aydın, Ebru Gökalp; Department of Information Systems (2026-6-18) This research addresses a persistent paradox in the digital economy: While data is increasingly recognized as a strategic asset, data science projects designed to leverage its potential impact continue to suffer from high ...
Analysis of agile methodologies’ adoption using interpretive structural modelling: Turkish defense industry case Şenyüzlü, Batuhan; Özkan Yıldırım, Sevgi; Department of Information Systems (2026-6-17) Although the demand for agile methodologies in organizations has grown exponentially, as a flexible and collaborative approach capable of enhancing organizations' success, their adoption requires serious attention to addre...
NON-TECHNICAL DEBT IN AI-ENABLED SOFTWARE SYSTEMS: A PROCESS-CENTRIC MAPPING TO LIFECYCLE STANDARDS Kapiyasheva, Diana; Özcan Top, Özden; Taşkaya Temizel, Tuğba; Department of Information Systems (2026-6-15) Non-Technical Debt (NTD), arising from organizational, cultural, and people-related inefficiencies, significantly compromises the quality and sustainability of artificial intelligence (AI)-enabled software systems. While i...
DEEP LEARNING-BASED PHASE DETECTION USING STRONG MOTION DATA İşpak, Türkan Simge; Akagündüz, Erdem; Tileylioğlu, Salih; Department of Modeling and Simulation (2026-6-12) Earthquake Early Warning (EEW) systems depend on rapid and reliable detection of Primary (P) waves to provide alerts before the more destructive Secondary (S) waves arrive. Detecting P-waves in strong motion accelerograms ...
DEVELOPMENT OF THE MIRHUB DATABASE: MAPPING TCGA DATA ON SNV PRESENCE AND DIFFERENTIAL EXPRESSION IN MIRNA-MRNA DUPLEXES Yıldız, Kerem; Aydın Son, Yeşim; Department of Medical Informatics (2026-6-9) Micro RNAs (miRNAs) play a role in post-transcriptional gene regulation through a distinct mechanism to down-regulate gene translation. Recent studies have shown that dysfunction at the miRNA level can be the underlying et...

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