About Me

I am a Master's student in Computer Engineering at Middle East Technical University (METU), working under the supervision of Prof. Dr. Sinan Kalkan and Assist. Prof. Dr. Emre Akbas at the Image Processing and Pattern Recognition Laboratory (ImageLab).

My research advances the integration of combinatorial optimization algorithms into deep neural networks through novel differentiable frameworks. I specialize in ranking-based losses, optimal transport theory, and their applications to object detection systems. My master's thesis develops innovative methods for incorporating piecewise linear functions with constant regions in backpropagation, enabling sophisticated end-to-end training of complex neural architectures with improved performance and interpretability.

I have contributed to cutting-edge research through collaborations with leading institutions: at ETH Zürich's Sensing, Interaction & Perception Lab, I developed deep learning architectures for real-time cybersickness detection in virtual reality environments using EEG signals; at UC Irvine's Cyber-Physical Systems Laboratory, I designed multi-modal deep learning systems for cardiac abnormality detection from physiological signals, achieving state-of-the-art performance in beat-by-beat classification.

News

  • Jun 2026 "Frequency-Weighted Neural Kalman Filters" accepted at IEEE/ICRA 2026#publication
  • Mar 2025 Started research internship at ETH Zürich SIPLab [link]#internship
  • Jan 2025 Defended my M.Sc. thesis at METU [link]#degree
  • Mar 2025 "Beyond Subjectivity" accepted at IEEE/TVCG [link]#publication
  • Aug 2024 "Bucketed Ranking Losses" accepted at ECCV 2024 [link]#publication
  • Sep 2022 Best Paper Award at IEEE/SRMC'22 [link]#award#publication
  • Sep 2022 Started M.Sc. in Computer Engineering at METU#degree

Selected Publications

ICRA 2026
Frequency-Weighted Neural Kalman Filters
Frequency-Weighted Neural Kalman Filters
Dogan, A. H., Demirel, B. U., Holz, C.
International Conference on Robotics and Automation (IEEE ICRA), 2026
IEEE/TVCG 2025
Beyond subjectivity: Continuous cybersickness detection using eeg-based multitaper spectrum estimation
Beyond subjectivity: Continuous cybersickness detection using eeg-based multitaper spectrum estimation
Demirel, B. U., Dogan, A. H., Rossie, J., Möbus M., Holz, C.
IEEE Transactions on Visualization and Computer Graphics, 2025
Bucketed Ranking Loss for Efficient Ranking-based Training of Object Detectors
Yavuz, F., Cam B.C., Dogan, A. H., Oksuz, K., Kalkan, S., Akbas, E.
European Conference on Computer Vision (ECCV), 2024

Education

Master of Science in Computer Engineering2022 - 10 Jan 2025
Middle East Technical University (METU)
Advisor: Prof. Dr. Sinan Kalkan, Assist. Prof. Dr. Emre Akbas

Thesis: Incorporating Piecewise Linear Functions with Constant Regions in Backpropagation. Developed novel differentiable frameworks integrating combinatorial optimization algorithms into deep neural networks. Research focus: optimal transport theory, ranking-based losses, and advanced object detection architectures. Funded by TUBITAK 2247-C STAR National Scholarship Program.

Bachelor of Science in Computer Engineering2018 - 17 Jul 2022
Middle East Technical University (METU)
Advisor: Assist. Prof. Dr. Hande Alemdar

Capstone Project: Designed and implemented a Transformer-based question-answering system utilizing T5 pre-trained architecture for extractive and abstractive text comprehension. Comprehensive curriculum spanning algorithms, systems programming, machine learning, and software engineering fundamentals.

Publications

Dogan, A. H., Demirel, B. U., Holz, C. (2026). Frequency-Weighted Neural Kalman Filters. International Conference on Robotics and Automation (IEEE ICRA).
Demirel, B. U., Dogan, A. H., Rossie, J., Möbus M., Holz, C. (2025). Beyond subjectivity: Continuous cybersickness detection using eeg-based multitaper spectrum estimation. IEEE Transactions on Visualization and Computer Graphics.
Yavuz, F., Cam B.C., Dogan, A. H., Oksuz, K., Kalkan, S., Akbas, E. (2024). Bucketed Ranking Loss for Efficient Ranking-based Training of Object Detectors. ECCV 2024.
Amin M. A., Dogan, A. H., Kuru E. S., Sever Y., Angin P. (2024). Misuse Detection and Response for Orchestrated Microservices Based Software. International Conference on Advanced Information Networking and Applications (AINA 2024).
Karagoz, P., Cekinel, R. F., Dogan, A. H., Oktay, B., Ozturk, A. U., Tonay, S. T., Tunel, B. M. (2024). Enhancing Underground Built Heritage Analysis with Text Mining: A Case Study on Cappadocia. In Valorising Underground Built Heritage in Cappadocia, pp. 61-92.
Sever Y., Dogan, A. H. (2023). A Kubernetes dataset for misuse detection. ITU Journal of FET.
Sever, Y., Ekinci, G., Dogan, A. H., Alparslan, B., Gurbuz, A. S., Jabrayilov, V., Angin, P. (Sep 2022). An Empirical Analysis of IDS Approaches in Container Security. IEEE/SRMC'22, September 2022. Best Paper Award.
Demirel, B. U., Dogan, A. H., Al-Faruque, M. A. (2021). Two Might Do: A Beat-by-Beat Classification of Cardiac Abnormalities using Deep Learning and Domain-Specific Features. CinC 2021.
Buyukbas, E. B., Dogan, A. H., Ozturk, A. U., Karagoz, P. (2021). Explainability in Irony Detection. Big Data Analytics and Knowledge Discovery (DaWaK 2021), Lecture Notes in Computer Science, vol 12925, pp. 61-92.
Dogan, A. H., Dogan, A. (Jun 2021). An Assembled Deep Learning Approach for Flow Field Prediction.

Experience

Research InternDec 2024 - Mar 2025
Sensing, Interaction, & Perception Laboratory (SIPLab), ETH Zürich Full-time, 4 months
Advisor: Prof. Dr. Christian Holz

Advanced research on continuous cybersickness detection in virtual reality environments using EEG-based multitaper spectrum estimation. Pioneered novel deep learning architectures achieving 30% performance improvement over baseline methods in real-time cybersickness prediction from brain signals, with potential applications in adaptive VR systems and user experience optimization.

  • Developed EEG-based cybersickness detection using multitaper spectrum estimation in VR
  • Achieved 30% improvement over baselines with novel deep learning architectures
  • Published at IEEE/ICRA 2026
Graduate Research AssistantFeb 2022 - Present
Image Processing and Pattern Recognition Laboratory (ImageLab), METU Full-time
Advisor: Prof. Dr. Sinan Kalkan, Assist. Prof. Dr. Emre Akbas

Pioneering research on differentiable optimization frameworks for deep learning in computer vision. Developed novel methods for incorporating combinatorial optimization algorithms into neural network training pipelines, achieving state-of-the-art performance in object detection. Funded by TUBITAK 2247-C STAR National Scholarship Program.

  • Designed bucketed ranking loss with Sinkhorn-Knopp algorithm for DETR object detection architecture
  • Improved end-to-end object detection via optimal transport-based loss formulations
Undergraduate Research InternJun 2021 - Sep 2021
Cyber-Physical Systems Laboratory, University of California, Irvine Remote collaboration, Full-time, 3 months
Advisor: Assist. Prof. Dr. Mohammad Abdullah Al-Faruque

Developed sophisticated multi-modal deep learning systems for cardiac and sleep abnormality detection from physiological signals. Designed novel architectures integrating time-series analysis with spectral feature extraction for beat-by-beat cardiac arrhythmia classification, achieving competitive performance in international challenges. Published research findings at Computing in Cardiology (CinC) 2021.

  • Built multi-modal deep learning system for cardiac and sleep abnormality detection
  • Designed beat-by-beat arrhythmia classification integrating time-series and spectral features
  • Published at Computing in Cardiology (CinC) 2021

Research Internships

Undergraduate Research ProjectJan 2020 - Jun 2022
Image Processing and Pattern Recognition Laboratory (ImageLab), METU
Advisor: Assist. Prof. Dr. Hande Alemdar, Assist. Prof. Dr. Baran Ugras

CNNFOIL: Approximating HLLC Riemann solver for flow prediction around airfoils via encoder-decoder neural networks. Engineered state-of-the-art neural network models achieving 4.4% performance improvement in predicting critical flow field parameters around airfoil geometries.

  • Approximated HLLC Riemann solver for airfoil flow prediction via encoder-decoder networks
  • Achieved 4.4% improvement in predicting flow field parameters around airfoil geometries
Undergraduate Research ProjectJun 2021 - Jul 2022
Center for Artificial Intelligence and Robotics (ROMER), METU Term project course: ME460
Advisor: Assist. Prof. Dr. Erol Sahin, Assoc. Prof. Dr. Bugra Koku

Reinforcement learning for autonomous driving (CarRL). Integrated ROS2 pipelines with RL/DL models in Gym and PyTorch for autonomous navigation.

  • Integrated ROS2 pipelines with RL/DL models in Gym and PyTorch for autonomous navigation
Undergraduate Research ProjectSep 2021 - Jun 2022
Cyber Security Research Group, METU 6 hours/week
Advisor: Assoc. Prof. Dr. Pelin Angin

Advanced research on container security with intrusion detection systems (CONTSEC) for cloud-native environments. Designed and implemented high-performance IDS pipeline optimized for containerized cloud infrastructures. Collaborated on Kubernetes misuse detection research, contributing to novel datasets and detection methodologies. Funded by TUBITAK 2247-C STAR National Scholarship Program.

  • Published at AINA 2024 on microservices security architectures
  • Received Best Paper Award at IEEE/SRMC 2022 for empirical analysis of IDS approaches
  • Co-authored ITU FET journal paper introducing a Kubernetes misuse detection dataset
Undergraduate Research ProjectOct 2020 - Oct 2021
Textual Event Graph HUB (TEGHub), METU 6 hours/week
Advisor: Prof. Dr. Pinar Karagoz

Textual analysis for irony detection and research impact prediction. Implemented end-to-end neural pipelines integrating GCN and LSTM networks for analyzing citation patterns and textual content on Twitter datasets.

  • Published at DaWaK 2021 on explainability in irony detection
  • Developed graph-based models for information retrieval
Undergraduate Research ProjectFeb 2020 - Jun 2021
School of Medicine, Koç University 6 hours/week × 60 weeks
Advisor: Assoc. Prof. Dr. Ozge Karanfil

Healthcare policy simulation for evidence-based decision making. Funding: TUBITAK 2247 C STAR Scholarship. Utilized simulation models focusing on mechatronics applications in healthcare. Developed GCN-based citation graph embeddings for healthcare policy papers.

  • Built simulation models for healthcare policy decision making
  • Developed GCN-based citation graph embeddings for healthcare policy papers
Undergraduate Research ProjectJul 2020 - Aug 2020
KOVAN Research Lab, METU
Advisor: Assist. Prof. Dr. Erol Sahin

Hector Quadrotor Swarm Localization. Participated in a multi-agent localization project, approximating numerical solvers for optimal drone positioning in self-organized swarm behavior.

  • Approximated numerical solvers for optimal drone positioning in swarm localization
Summer InternAug 2021 - Oct 2021
TUBITAK BILGEM 40 hours/week × 8 weeks

Cloud infrastructure development at Cloud Computing and Big Data Research Lab. Contributed to Sapphire Cloud platform enhancements.

  • Contributed to Sapphire Cloud platform at Cloud Computing and Big Data Research Lab
Summer InternAug 2020 - Oct 2020
Enocta Inc. 40 hours/week × 8 weeks

NLP and transformer model optimization. Engineered GPT-2 and T5 models using HuggingFace for enterprise learning management systems.

  • Engineered GPT-2 and T5 models using HuggingFace for enterprise learning management systems

Teaching Experience

Teaching AssistantFeb 2022 - Present
Computer Engineering Department, METU 20 hours/week

Conducted recitations, graded assignments, proctored exams, and provided office hours.

  • CENG 460 - Introduction to Robotics for Computer Science (Fall 2024)
  • CENG 223 - Discrete Computational Structures (Fall 2023, Fall 2024, Fall 2025)
  • CENG 213 - Data Structures (Spring 2024)
  • CENG 280 - Automata Theory (Spring 2024, Spring 2025)
  • CENG 424 - Logic for Computer Science (Fall 2023, Fall 2025)
  • CENG 382 - Analysis of Dynamical Systems (Spring 2023)
  • CENG 242 - Programming Language Concepts (Spring 2022, Spring 2023, Spring 2025)
  • CENG 334 - Introduction to Operating Systems (Spring 2022)
Undergraduate Teaching AssistantSpring 2019 - Fall 2021
Computer Engineering Department, METU 8 hours/week

Helped TAs in recitations and lab sessions, also organized social sessions during covid'19.

  • CENG 240 - Programming with Python for Engineers (Fall 2021)
  • CENG 111 - Introduction to Computer Engineering Concepts (Fall 2020)
  • CENG 230 - Introduction to C Programming (Spring 2019)

Honors, Awards, and Scores

TUBITAK 2247 C STAR Scholarship2022-2023
The Scientific and Technological Research Institution of Turkey (TÜBİTAK)

Merit-based national scholarship awarded to students contributing to TUBITAK-funded research projects. Supported graduate thesis on differentiable combinatorial optimization at ImageLab, METU.

Best Paper AwardSeptember 2022
IEEE/SRMC'22

Awarded for 'An Empirical Analysis of IDS Approaches in Container Security' at the IEEE International Workshop on Security, Resilience, and Management of Cloud Computing.

TUBITAK 2247 C STAR Scholarship2021-2022
The Scientific and Technological Research Institution of Turkey (TÜBİTAK)

Merit-based national scholarship awarded to students contributing to TUBITAK-funded research projects. Supported undergraduate research on container security and intrusion detection (CONTSEC) at METU.

TUBITAK 2247 C STAR Scholarship2020-2021
The Scientific and Technological Research Institution of Turkey (TÜBİTAK)

Merit-based national scholarship awarded to students contributing to TUBITAK-funded research projects. Supported undergraduate research on healthcare policy simulation at Koç University School of Medicine.

Timeline

2026

Frequency-Weighted Neural Kalman Filters

Dogan, A. H., Demirel, B. U., Holz, C.
ICRA 2026
2025

Beyond subjectivity: Continuous cybersickness detection using eeg-based multitaper spectrum estimation

Demirel, B. U., Dogan, A. H., Rossie, J., Möbus M., Holz, C.
IEEE/TVCG 2025
Dec 2024
Mar 2025

Research Intern

Sensing, Interaction, & Perception Laboratory (SIPLab), ETH Zürich
2024

Bucketed Ranking Loss for Efficient Ranking-based Training of Object Detectors

Yavuz, F., Cam B.C., Dogan, A. H., Oksuz, K., Kalkan, S., Akbas, E.
ECCV 2024
Feb 2022
Present

Graduate Research Assistant

Image Processing and Pattern Recognition Laboratory (ImageLab), METU
2022
10 Jan 2025

Master of Science in Computer Engineering

Middle East Technical University (METU)
2018
17 Jul 2022

Bachelor of Science in Computer Engineering

Middle East Technical University (METU)