TECO Logo

PEOPLE

About Me

I am Tobias Röddiger, a group leader for Wearable Systems at TECO at the Karlsruhe Institute of Technology. In my research I developed intelligent embedded systems at the intersection of hardware, humans, and artificial intelligence. Previously, I studied and conducted research at KIT, MIT, University of Cambridge, and Lancaster University. I have strong ties with industry (e.g., Bosch Sensortec). Additionally, I founded two companies, worked at Microsoft and shipped systems to millions of users.

If you are interested in thesis, HiWi, PhD positions, etc., please send an e-mail!

For a full list of my past experience and publications, please have a look at the resources below.

Teaching

  • Ubiquitous Computing (every fall term)
  • Mobile Computing and Internet of Things - Exercise (every fall term)

Projects

Dr. Tobias Röddiger's publications

2025
Closed-Loop Rhythmic Haptic Biofeedback via Smartwatch for Relaxation and Sleep Onset
Lee, J.; Moschina, D.; Ramesh, S.; Röddiger, T.; Kunze, K.; Beigl, M.
2025. Proceedings of the ACM International Symposium on Wearable Computers (ISWC’25), 30–37, Association for Computing Machinery (ACM). doi:10.1145/3715071.3750412 VolltextVolltext der Publikation als PDF-Dokument 
Haptic Biofeedback for Wakeful Rest: Does Stimulation Location Make a Difference?
Lee, J.; Filpe, M.; Lepold, P.; Röddiger, T.; Beigl, M.
2025. Proceedings of the 2025 ACM International Symposium on Wearable Computers, 83–90, Association for Computing Machinery (ACM). doi:10.1145/3715071.3750427 VolltextVolltext der Publikation als PDF-Dokument 
Heatables: Effects of Infrared-LED-Induced Ear Heating on Thermal Perception, Comfort, and Cognitive Performance
Zitz, V.; Küttner, M.; Hummel, J.; Knierim, M. T.; Beigl, M.; Röddiger, T.
2025. Proceedings of the ACM International Symposium on Wearable Computers (ISWC’25), 91–97, Association for Computing Machinery (ACM). doi:10.1145/3715071.3750421 VolltextVolltext der Publikation als PDF-Dokument 
Computing with Smart Rings: A Systematic Literature Review
Wang, Z.; Yu, R.; Wang, X.; Ding, J.; Tang, J.; Fang, J.; He, Z.; Li, Z.; Röddiger, T.; Xu, W.; Zhang, X.; Gao, H.- ang; Gao, N.; Yu, C.; Shi, Y.; Wang, Y.
2025. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 9 (3), 54 S. doi:10.1145/3749480 VolltextVolltext der Publikation als PDF-Dokument 
BodyPursuits: Exploring Smooth Pursuit Gaze Interaction Based on Body Motion Targets
Hansen, A.; Makarem, S.; Kunze, K.; Zhou, Y.; Knierim, M. T.; Clarke, C.; Gellersen, H.; Beigl, M.; Röddiger, T.
2025. Proceedings of the 2025 Symposium on Eye Tracking Research and Applications, Art.-Nr.: 3, Association for Computing Machinery (ACM). doi:10.1145/3715669.3723110 
Demonstrating OpenEarable 2.0: An AI-Powered Ear Sensing Platform
Röddiger, T.; Zitz, V.; Hummel, J.; Küttner, M.; Lepold, P.; King, T.; Paradiso, J. A.; Clarke, C.; Beigl, M.
2025. CHI EA ’25: Proceedings of the Extended Abstracts of the CHI Conference on Human Factors in Computing Systems, Art.-Nr.: 713, Association for Computing Machinery (ACM). doi:10.1145/3706599.3721161 
Fit2Ear Dataset
Zhao, H.; Röddiger, T.; Feng, Y.; Beigl, M.
2025, März 5. doi:10.35097/LuEUQApwxQrvGfKm 
MicroNAS for memory and latency constrained hardware aware neural architecture search in time series classification on microcontrollers
King, T.; Zhou, Y.; Röddiger, T.; Beigl, M.
2025. Scientific Reports, 15 (1), Art.-Nr.: 7575. doi:10.1038/s41598-025-90764-z VolltextVolltext der Publikation als PDF-Dokument 
OpenEarable 2.0: Open-Source Earphone Platform for Physiological Ear Sensing
Röddiger, T.; Küttner, M.; Lepold, P.; King, T.; Moschina, D.; Bagge, O.; Paradiso, J. A.; Clarke, C.; Beigl, M.
2025. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 9 (1), Art.-Nr.: 16. doi:10.1145/3712069 VolltextVolltext der Publikation als PDF-Dokument 
Advancing Wearable BCI: Headphone EEG for Cognitive Load Detection in Lab and Field
Knierim, M. T.; Zimny, C.; Ivucic, G.; Röddiger, T.
2025. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 9 (1), 1–26. doi:10.1145/3712283 
earEOG via periauricular electrodes to facilitate eye tracking in a natural headphone form factor
King, T.; Knierim, M.; Lepold, P.; Clarke, C.; Gellersen, H.; Beigl, M.; Röddiger, T.
2025. Scientific Reports, 15 (1), 32437. doi:10.1038/s41598-025-16839-z VolltextVolltext der Publikation als PDF-Dokument 
2024
OpenEarable ExG: Open-Source Hardware for Ear-Based Biopotential Sensing Applications
Lepold, P.; Röddiger, T.; King, T.; Kunze, K.; Maurer, C.; Beigl, M.
2024. UbiComp ’24: Companion of the 2024 on ACM International Joint Conference on Pervasive and Ubiquitous Computing, 916 – 920, Association for Computing Machinery (ACM). doi:10.1145/3675094.3678480 
OpenEarable 1.4: Dual Microphones Earpiece to Capture In-Ear and Outer-Ear Audio Signals
Röddiger, T.; Stuchbury-Wass, J.; Ciliberto, M.; Lepold, P.; Beigl, M.
2024. Companion of the 2024 on ACM International Joint Conference on Pervasive and Ubiquitous Computing, 930 – 933, Association for Computing Machinery (ACM). doi:10.1145/3675094.3678483 
Fit2Ear: Generating Personalized Earplugs from Smartphone Depth Camera Images
Zhao, H.; Röddiger, T.; Yufei, F.; Beigl, M.
2024. ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp ’24), 679 – 684, Association for Computing Machinery (ACM). doi:10.1145/3675094.3680525 
AutoAugHAR: Automated Data Augmentation for Sensor-based Human Activity Recognition
Zhou, Y.; Zhao, H.; Huang, Y.; Röddiger, T.; Kurnaz, M.; Riedel, T.; Beigl, M.
2024. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 8 (2), Art.-Nr.: 48. doi:10.1145/3659589 VolltextVolltext der Publikation als PDF-Dokument 
Enhancing Efficiency in HAR Models: NAS Meets Pruning
Zhou, Y.; King, T.; Huang, Y.; Zhao, H.; Riedel, T.; Röddiger, T.; Beigl, M.
2024. 22nd IEEE International Conference on Pervasive Computing and Communications (PerCom 2024), Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PerComWorkshops59983.2024.10502894 VolltextVolltext der Publikation als PDF-Dokument 
SciEx: Benchmarking Large Language Models on Scientific Exams with Human Expert Grading and Automatic Grading
Dinh, T. A.; Mullov, C.; Bärmann, L.; Li, Z.; Liu, D.; Reiß, S.; Lee, J.; Lerzer, N.; Ternava, F.; Gao, J.; Röddiger, T.; Waibel, A.; Asfour, T.; Beigl, M.; Stiefelhagen, R.; Dachsbacher, C.; Böhm, K.; Niehues, J.
2024. arxiv. doi:10.48550/arXiv.2406.10421 VolltextVolltext der Publikation als PDF-Dokument 
OpenEarable ExG: Open-Source Hardware for Ear-Based Biopotential Sensing Applications
Lepold, P.; Röddiger, T.; King, T.; Kunze, K.; Maurer, C.; Beigl, M.
2024. doi:10.48550/arXiv.2410.06533 VolltextVolltext der Publikation als PDF-Dokument 
SciEx: Benchmarking Large Language Models on Scientific Exams with Human Expert Grading and Automatic Grading
Dinh, T. A.; Mullov, C.; Bärmann, L.; Li, Z.; Liu, D.; Reiß, S.; Lee, J.; Lerzer, N.; Gao, J.; Peller-Konrad, F.; Röddiger, T.; Waibel, A.; Asfour, T.; Beigl, M.; Stiefelhagen, R.; Dachsbacher, C.; Böhm, K.; Niehues, J.
2024. Y. Al-Onaizan, M. Bansal & Y.-N. Chen (Hrsg.), Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing, Miami, 12th-16th November 2024, Hrsg.: Al-Onaizan, Y., Bansal, M., Chen, Y.-N., 11592–11610, Association for Computational Linguistics (ACL). doi:10.18653/v1/2024.emnlp-main.647 VolltextVolltext der Publikation als PDF-Dokument 
2023
Vertical Jump Test Using an Earable Accelerometer
Moschina, D.; Röddiger, T.; Beigl, M.
2023. UbiComp/ISWC ’23 Adjunct: Adjunct Proceedings of the 2023 ACM International Joint Conference on Pervasive and Ubiquitous Computing & the 2023 ACM International Symposium on Wearable Computing, Ed.: M. Tentori, 324 – 326, Association for Computing Machinery (ACM). doi:10.1145/3594739.3610669 
Earables: Wearable Computing on the Ears. Dissertation
Röddiger, T.
2023, August 3. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000161088 VolltextVolltext der Publikation als PDF-Dokument 
OpenEarable: Open Hardware Earable Sensing Platform
Röddiger, T.; King, T.; Roodt, D. R.; Clarke, C.; Beigl, M.
2023. UbiComp/ISWC ’22 Adjunct: Adjunct Proceedings of the 2022 ACM International Joint Conference on Pervasive and Ubiquitous Computing and the 2022 ACM International Symposium on Wearable Computers, 246–251, Association for Computing Machinery (ACM). doi:10.1145/3544793.3563415 
OpenBCI + 3D-Printed Headphones = Open ExG Headphones – An Open-Source Research Platform for Biopotential Earable Applications
Knierim, M. T.; Puhl, D.; Ivucic, G.; Röddiger, T.
2023. CHI EA ’23: Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems. Ed.: A. Schmidt, Art.-Nr.: 221, Association for Computing Machinery (ACM). doi:10.1145/3544549.3585875 
2022
Tools and methods for Edge-AI-systems
Schwabe, N.; Zhou, Y.; Hielscher, L.; Röddiger, T.; Riedel, T.; Reiter, S.
2022. at - Automatisierungstechnik, 70 (9), 767–776. doi:10.1515/auto-2022-0023 
OpenEarable: Open Hardware Earable Sensing Platform
Röddiger, T.; King, T.; Roodt, D. R.; Clarke, C.; Beigl, M.
2022, September 15 
Towards Detecting Complete Chest Recoil from Smartphone Vibration Strength during Cardiopulmonary Resuscitation
Hermann, S.; Röddiger, T.; Beigl, M.
2022. Proceedings of the 2022 ACM International Symposium on Wearable Computers, 103–105, Association for Computing Machinery (ACM). doi:10.1145/3544794.3558472 
Sensing with Earables: A Systematic Literature Review and Taxonomy of Phenomena
Röddiger, T.; Clarke, C.; Breitling, P.; Schneegans, T.; Zhao, H.; Gellersen, H.; Beigl, M.
2022. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 6 (3), Article 135. doi:10.1145/3550314 VolltextVolltext der Publikation als PDF-Dokument 
2021
Earrumble: Discreet hands-and eyes-free input by voluntary tensor tympani muscle contraction
Röddiger, T.; Clarke, C.; Wolffram, D.; Budde, M.; Beigl, M.
2021. Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems, Art.-Nr.: 743, Association for Computing Machinery (ACM). doi:10.1145/3411764.3445205 VolltextVolltext der Publikation als PDF-Dokument 
EarRecorder: A Multi-Device Earable Data Collection Toolkit
Fang, L.; Röddiger, T.; Schmid, F.; Beigl, M.
2021. Augmented Humans Conference 2021, 286–288, Association for Computing Machinery (ACM). doi:10.1145/3458709.3459005 
2020
Responsible, Automated Data Gathering for Timely Citizen Dashboard Provision During a Global Pandemic (COVID-19
Röddiger, T.; Beigl, M.; Dörner, D.; Budde, M.
2020. Digital Government: Research and Practice, 2 (1), Art.-Nr.: 9. doi:10.1145/3428471 VolltextVolltext der Publikation als PDF-Dokument 
FLECTILE: 3D-printable soft actuators for wearable computing
Fang, L.; Röddiger, T.; Sun, H.; Willenbacher, N.; Beigl, M.
2020. UbiComp/ISWC ’20: 2020 ACM International Joint Conference on Pervasive and Ubiquitous Computing and 2020 ACM International Symposium on Wearable Computers. Ed.: K. v. Laerhoven, 32–36, Association for Computing Machinery (ACM). doi:10.1145/3410531.3414307 VolltextVolltext der Publikation als PDF-Dokument 
Design Space and Usability of Earable Prototyping
Röddiger, T.; Beigl, M.; Exler, A.
2020. UbiComp/ISWC ’20: 2020 ACM International Joint Conference on Pervasive and Ubiquitous Computing and 2020 ACM International Symposium on Wearable Computers, Virtual Event, Mexico, September, 2020. Ed.: K. van Laerhoven, 73–78, Association for Computing Machinery (ACM). doi:10.1145/3410531.3414302 VolltextVolltext der Publikation als PDF-Dokument 
PDMSkin – On-Skin Gestures with Printable Ultra-Stretchable Soft Electronic Second Skin
Röddiger, T.; Beigl, M.; Wolffram, D.; Budde, M.; Sun, H.
2020. AHs ’20: Proceedings of the Augmented Humans International Conference, March 2020, Article No.: 28, Association for Computing Machinery (ACM). doi:10.1145/3384657.3384789 VolltextVolltext der Publikation als PDF-Dokument 
Wearability and Comfort of Earables during Sleep
Röddiger, T.; Dinse, C.; Beigl, M.
2020. ISWC’21: Proceedings of the 2021 ACM International Symposium on Wearable Computers: September 21-26, 2021 ; Virtual Event, 150–152, Association for Computing Machinery (ACM). doi:10.1145/3460421.3480432 
Where Should i Look? Comparing Reference Frames for Spatial Tactile Cues
Pescara, E.; Stubenbord, A.; Röddiger, T.; Fang, L.; Beigl, M.
2020. ISWC’21: Proceedings of the 2021 ACM International Symposium on Wearable Computers: September 21-26, 2021 ; Virtual Event, 68–72, Association for Computing Machinery (ACM). doi:10.1145/3460421.3478822 
Cardiopulmonary Resuscitation Support: Comparison of Wrist-, Chest-, and Ear-Worn Devices and Estimation Algorithms
Hermann, S.; Breitling, P.; Röddiger, T.; Beigl, M.
2020. ISWC’21: Proceedings of the 2021 ACM International Symposium on Wearable Computers: September 21-26, 2021 ; Virtual Event, 28–32, Association for Computing Machinery (ACM). doi:10.1145/3460421.3478820 
2019
Towards Respiration Rate Monitoring Using an In-Ear Headphone Inertial Measurement Unit
Röddiger, T.; Wolffram, D.; Laubenstein, D.; Budde, M.; Beigl, M.
2019. UbiComp ’19: The 2019 ACM International Joint Conference on Pervasive and Ubiquitous Computing - EarComp’19: Proceedings of the 1st International Workshop on Earable Computing - London, United Kingdom, 9th-13th September 2019, 48–53, Association for Computing Machinery (ACM). doi:10.1145/3345615.3361130 VolltextVolltext der Publikation als PDF-Dokument 
2018
ARMart – AR-Based Shopping Assistant to Choose and Find Store Items
Röddiger, T.; Doerner, D.; Beigl, M.
2018. 2018 Joint ACM International Conference on Pervasive and Ubiquitous Computing, UbiComp 2018 and 2018 ACM International Symposium on Wearable Computers, ISWC 2018; Singapore; Singapore; 8 October 2018 through 12 October 2018, 440–443, Association for Computing Machinery (ACM). doi:10.1145/3267305.3267631 VolltextVolltext der Publikation als PDF-Dokument 
VOCNEA: Sleep apnea and hypopnea detection using a novel tiny gas sensor
Röddiger, T.; Beigl, M.; Köpke, M.; Budde, M.
2018. 22nd International Symposium on Wearable Computers, ISWC 2018; Singapore; Singapore; 8 October 2018 through 12 October 2018, 226–227, Association for Computing Machinery (ACM). doi:10.1145/3267242.3267273 VolltextVolltext der Publikation als PDF-Dokument 
KIT – Campus Süd – TECO
Vincenz-Prießnitz-Str. 1
76131 Karlsruhe, GERMANY
Visit our LinkedInVisit our YouTube channel
©2025 TECO – Technology for Pervasive Computing
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram