Master of Science in Computer Engineering
Bilkent University
CGPA: 3.81 / 4.00 · 2023 - Present
melih.cosgun
Melih Coşğun
Computer Science researcher / AI Security & Privacy
About
I am an M.S. student in Computer Engineering at Bilkent University and a researcher at the Applied Security and Privacy Lab. My work is centered around privacy-preserving machine learning, federated learning, adversarial machine learning, machine learning security, and data privacy.
Education
Bachelor of Science in Computer Engineering
TOBB University of Economics and Technology
CGPA: 3.52 / 4.00 · 2019 - 2023
Publications
Bridging Local and Federated Data Normalization in Federated Learning: A Privacy-Preserving Approach
IEEE Transactions on Big Data Journal · 2026
Cost-Efficient Knowledge Extraction Attack on RAG Systems via Adversarial Perturbations
2026 · Under review
Inclusive, Differentially Private Federated Learning for Clinical Data
arXiv preprint · 2025 · Under review
Experience
Applied Security and Privacy Lab | Researcher Ankara · 2023 - Present
Research on privacy-preserving and secure machine learning under the supervision of Asst. Prof. Sinem Sav.
Bilkent University | Teaching Assistant Ankara · Sep 2023 - Present
Teaching assistant for Algorithms and Programming I, Algorithms and Programming II, Digital Design, and
Data Privacy.
KoçSistem | Web Developer Intern Ankara · Sep 2022 - Dec 2022
Web development internship at KoçSistem.
Turkish Aerospace Industries | Database Administrator Intern Ankara · Jan 2022 - Apr 2022
Database administration internship at Turkish Aerospace Industries.
Havelsan | Mobile Application Developer Intern Ankara · May 2021 - Sep 2021
Mobile application development internship at Havelsan.
Projects
Model Stealing with Wise Query Selection
Machine learning security
A Privacy-Preserving Framework for Keyword-Based Document Retrieval
Privacy · retrieval systems
Privacy-Preserving Federated Learning for Depression Assessment
Federated learning · healthcare
Facial Image Colorization and Editing with GAN Inversion
Computer vision · generative models
A Comprehensive Experimental Analysis of Modern CNN Architectures on CIFAR-10
Deep learning · experimental analysis
Handwriting-Based Person Identification via Texture and Graphological Features
Computer vision · pattern recognition
Epic Issue Suggestion and Hierarchy Construction
Software engineering · issue mining
Academic Service
Ad-hoc Reviewer
IEEE Internet of Things Journal
Sub Reviewer
ACM Conference on Computer and Communications Security