Personal Information
Work Experience:
- 2017 - 2018: Research Assistant, Charité, Berlin
- 2011 - 2017: Forecast Manager, natGAS, Potsdam
- 2010 - 2011: Software Engineer, AvenDATA, Berlin
Education:
- 2008 - 2010: Computational Engineering - Mathematics (M.Sc.) at University of Applied Sciences, Berlin
- 2004 - 2008: Mathematics (FH) at University of Applied Sciences, Berlin
Research Interests
- Data Acquisition Methods through Real-time Pose Estimation
- Data Anonymization
- Sensor Placement Optimization
- Multimodal Classification
- Data Augmentation for Human Activity Recognition
- Synthetic Data Generation through Simulations in Unity
- Generative Adversarial Networks (GANs) for Time Series Data
- Data Transformation: From Motion Senor Data to Images
- Human Activity Recognition Engineering Framework
- On-device Learning
- Active Learning
- Real-time Classification
Project
Teaching
- Winter 2018/19
- Lecture: Data Management for Digital Health
- Summer 2019
- Winter 2019/20
- Lecture: Data Management for Digital Health
- Summer 2020
- Winter 2020/21
- Lecture: Data Management for Digital Health
Publications at HPI
2023
- Federated Learning for Activity Recognition: A System Level Perspective. Kalabakov, Stefan; Jovanovski, Borche; Denkovski, Daniel; Rakovic, Valentin; Pfitzner, Bjarne; Konak, Orhan; Arnrich, Bert; Gjoreski, Hristijan in IEEE Access (2023). 11 64442–64457.
- HARE: Unifying the Human Activity Recognition Engineering Workflow. Konak, Orhan; van de Water, Robin; Döring, Valentin; Fiedler, Tobias; Liebe, Lucas; Masopust, Leander; Postnov, Kirill; Sauerwald, Franz; Treykorn, Felix; Wischmann, Alexander; Gjoreski, Hristijan; Luštrek, Mitja; Arnrich, Bert in Sensors (2023). 23(23)
- Overcoming Data Scarcity in Human Activity Recognition. Konak, Orhan; Liebe, Lucas; Postnov, Kirill; Sauerwald, Franz; Gjoreski, Hristijan; Luštrek, Mitja; Arnrich, Bert in IEEE EMBC 2023 (2023).
- A Real-time Human Pose Estimation Approach for Optimal Sensor Placement in Sensor-based Human Activity Recognition. Konak, Orhan; Wischmann, Alexander; van De Water, Robin; Arnrich, Bert (2023). 1–6.
- SONAR, a nursing activity dataset with inertial sensors. Konak, Orhan; Döring, Valentin; Fiedler, Tobias; Liebe, Lucas; Masopust, Leander; Postnov, Kirill; Sauerwald, Franz; Treykorn, Felix; Wischmann, Alexander; Kalabakov, Stefan; others in Scientific Data (2023). 10(1) 727.
2022
- Unsupervised Activity Recognition Using Trajectory Heatmaps from Inertial Measurement Unit Data. Konak., Orhan; Wegner., Pit; Albert., Justin; Arnrich., Bert (2022). 304–312.
2020
- IMU-Based Movement Trajectory Heatmaps for Human Activity Recognition. Konak, Orhan; Wegner, Pit; Arnrich, Bert in Sensors (Switzerland) (2020). 20(24) 1–15.
2019
- An Information and Communication Platform Supporting Analytics for Elderly Care. Konak, Orhan; Freitas Da Cruz, Harry; Thiele, Marvin; Golla, David; Schapranow, Matthieu-P. (2019).
- MORPHER – A Platform to Support Modeling of Outcome and Risk Prediction in Health Research. Freitas da Cruz, Harry; Bergner, Benjamin; Konak, Orhan; Schneider, Frederic; Bode, Philipp; Lempert, Conrad; Schapranow, Matthieu-P. (2019).