Jan Schwarzer, Ph.D.

Postdoctoral Researcher

Jan is a trained IT specialist for software application development and holds a bachelor’s degree in applied computer science, a master’s degree in computer science, as well as a doctorate degree in computer science.

His research builds on contemporary developments in the HCI and CSCW disciplines concerning the evaluation of socially embedded technology. More specifically, Jan largely devotes his research efforts on scrutinizing large and interactive screens (or ambient displays as we refer to) in professional agile software development teams. Little is known on how ambient displays are really used in practice. There also exists a lack of appropriate methodological tools to investigate ambient displays long term in authentic contexts. Besides qualitative and quantitative methods, Jan leverages, among others, depth-based sensors such as Microsoft Kinect cameras in his research to advance on these challenges.

In the CSTI laboratory, Jan’s main tasks are the supervision of theses, the administration of the CSTI website and the coordination of the HopE project.

Projects

 

 

Publications

: Peer-reviewed publications
: Award-winning publications

2024

Hoefflin, N., Spulak, T., Jeworutzki, A., Schwarzer, J. (2024) [Forthcoming]. ‘Real-time Lateral Sitting Posture Detection using YOLOv5‘. In 2024 10th IEEE RAS/EMBS International Conference for Biomedical Robotics and Biomechatronics (BioRob).

2023

Koch, M., Fietkau, J., Draheim, S., Schwarzer, J., von Luck, K. (2023). ‘Methods and Tools for (Semi-)Automated Evaluation in Long-Term In-the-Wild Deployment Studies’. In Mensch und Computer 2023 – Workshopband. Rapperswil, Switzerland: Gesellschaft für Informatik e.V. doi: 10.18420/muc2023-mci-ws13-116.

Schwarzer, J., Fietkau, J., Fuchs, L., Draheim, S., von Luck, K., Koch, M. (2023). ‘Exploring Mobility Behavior Around Ambient Displays Using Clusters of Multi-dimensional Walking Trajectories’. In Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems (CHI EA ’23). New York, NY, USA: ACM. 6 pages. doi: 10.1145/3544549.3585661.
(Poster: Click here)

Jeworutzki, A., Schwarzer, J., von Luck, K., Stelldinger, P., Draheim, S., and Wang, Q. (2023). ‘Small Data, Big Challenges: Pitfalls and Strategies for Machine Learning in Fatigue Detection’. In Proceedings of the 16th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA ’23). New York, NY, USA: ACM. 10 pages. doi: 10.1145/3594806.3594825.

Trygub, I., Ahlf, J., Campanale, M., Jeworutzki, A., and Schwarzer, J. (2023). ‘A Real-time Monitoring Tool for the Assessment of the Neck Posture’. In Proceedings of the 16th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA ’23). New York, NY, USA: ACM. 2 pages. doi: 10.1145/3594806.3596529.
(Poster: Click here)

Schwarzer, J., Draheim, S., von Luck, K. (2023). ‘Spatial and Temporal Audience Behavior of Scrum Practitioners Around Semi-Public Ambient Displays’. International Journal of Human–Computer Interaction, 39(18), pp. 3567–3585. doi: 10.1080/10447318.2022.2099238.

2022

Schwarzer, J., Draheim, S., von Luck, K., Wang, Q., Grecos, C. (2022). ‘Spontaneous utilization: A classic grounded theory of utilizing ambient displays in professional, large-scale agile software development environments’. International Journal of Human–Computer Interaction, 38(15), pp. 1440–1463. doi: 10.1080/10447318.2021.2002051.

2021

Jeworutzki, A., Schwarzer, J., von Luck, K., Draheim, S., and Wang, Q. (2021). ‘A Preliminary Experimental Outline to Train Machine Learning Models for the Unobtrusive, Real-Time Detection of Acute Physiological Stress Levels during Training Exercises’. In Proceedings of the 14th PErvasive Technologies Related to Assistive Environments Conference (PETRA 2021). New York, NY, USA: ACM. 10 pages. doi: 10.1145/3453892.3461833.

2019

Schwarzer, J. (2019). ‘Spontaneous Utilisation: A Classic Grounded Theory of Utilising Ambient Displays in Authentic, Co-Located, Matured, and Large-Scale Agile Software Development Environments’ [PhD thesis, University of the West of Scotland]. Permalink: https://users.informatik.haw-hamburg.de/~ubicomp/arbeiten/phd/schwarzer.pdf.

Schwarzer, J., von Luck, K., Draheim, S., and Koch, M. (2019). ‘Towards Methodological Guidance for Longitudinal Ambient Display in Situ Research’. In Proceedings of 17th European Conference on Computer-Supported Cooperative Work – Exploratory Papers. Reports of the European Society for Socially Embedded Technologies (ISSN 2510-2591). doi: 10.18420/ecscw2019_ep07.

Koch, M., Camurtay, B., von Luck, K., Schwarzer, J., and Draheim, S. (2019). ‘Workshop Evaluation der Nutzung und des Nutzens von (Semi-)Public Displays’. In Mensch und Computer 2019 – Workshopband. Bonn, Germany: Gesellschaft für Informatik e.V. pp. 70–72. doi: 10.18420/muc2019-ws-121.

2018

Koch, M., von Luck, K., Schwarzer, J., and Draheim, S. (2018). ‘The Novelty Effect in Large Display Deployments – Experiences and Lessons-Learned for Evaluating Prototypes’. In Proceedings of 16th European Conference on Computer-Supported Cooperative Work – Exploratory Papers. Reports of the European Society for Socially Embedded Technologies (ISSN 2510-2591). doi: 10.18420/ecscw2018_3.

2017

Schwarzer, J., Wang, Q., Casaseca, P., Allison, I., von Luck, K., Draheim, S., and Grecos, C. (2017). ‘Ambient Surfaces: Encouraging Communication Beyond Agile Practices in Co-Located Scrum Teams’. In Abel Usoro and Daune West (eds.), Smart Systems For Complex Problems – Abstracts. Paisley, Scotland: University of the West of Scotland. pp. 74–75.

2016

Schwarzer, J., Draheim, S., von Luck, K., Wang, Q., Casaseca, P., and Grecos, C. (2016). ‘Ambient Surfaces: Interactive Displays in the Informative Workspace of Co-Located Scrum Teams’. In Proceedings of the 9th Nordic Conference on Human-Computer Interaction. New York, NY, USA: ACM. pp. 69:1–69:4. doi: 10.1145/2971485.2971493.

2015

Schwarzer, J., Draheim, S., and von Luck, K. (2015). ‘Förderung von informellen Kontexten und Awareness in Scrum-Teams’. In Sarah Diefenbach, Niels Henze, and Martin Pielot (eds.), Mensch und Computer 2015 – Proceedings. Stuttgart, Germany: Oldenbourg Wissenschaftsverlag. pp. 13–22. Permalink: https://dl.gi.de/20.500.12116/7899.

2014

Kaack, A., Barnkow, L., Schwarzer, J., and von Luck, K. (2014). ‘Ein interaktives Taskboard zur Unterstützung von verteilten Scrum-Teams’. In Jürgen Cleve (ed.), WIWITA 2014 – Proceedings. Wismar, Germany: Hochschule Wismar. pp. 175–180.

2013

Barnkow, L., Schwarzer, J., and von Luck, K. (2013). ‘Medienbruchfreie Kollaboration in Scrum-Meetings’. In Susanne Boll, Susanne Maaß, and Rainer Malaka (eds.), Mensch und Computer 2013 – Workshopband. Munich, Germany: Oldenbourg Verlag. pp. 317–322. Permalink: https://dl.gi.de/20.500.12116/7626.

Schwarzer, J., Barnkow, L., Kastner, P., and von Luck, K. (2013). ‘Hin zu mehr Sichtbarkeit und Wertschätzung in der Softwareentwicklung’. In Susanne Boll, Susanne Maaß, and Rainer Malaka (eds.), Mensch und Computer 2013 – Interaktive Vielfalt. Munich, Germany: Oldenbourg Verlag. pp. 341–344. Permalink: https://dl.gi.de/20.500.12116/7502.

Schwarzer, J., Barnkow, L., and von Luck, K. (2013). ‘Förderung der Anerkennung in agilen Softwareentwicklungsprozessen’. In Thomas Köhler and Nina Kahnwald (eds.), Online Communities: Enterprise Networks, Open Education and Global Communication: 16. Workshop GeNeMe ’13 Gemeinschaften in Neuen Medien. Dresden, Germany: TUDpress. pp. 185–188. Permalink: https://nbnresolving.org/urn:nbn:de:bsz:14-qucosa-126045.

2012

Barnkow, L., Schwarzer, J., and von Luck, K. (2012). ‘Berührungssensitive Schnittstellen für Social Software in Entwicklungsprozessen’. In Thomas Köhler and Nina Kahnwald (eds.), Communities in New Media: Virtual Enterprises, Research Communities & Social Media Networks: 15. Workshop GeNeMe ’12 Gemeinschaften in Neuen Medien. Dresden, Germany: TUDpress. pp. 63–66. Permalink: https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa-101009.

Schwarzer, J. and von Luck, K. (2012). ‘Periphere Wahrnehmung von Unternehmensinformationen – ein Erfahrungsbericht’. In Jürgen Cleve (ed.), WIWITA 2012 – Proceedings. Wismar, Germany: Hochschule Wismar. pp. 82–91.

Co-supervised Theses

Graph Convolutional Network based Gesture Interpretation of Skeleton Data (in progress)
Thore Ottenheym, Bachelor’s Thesis

Effects of Image Resolution on Skin Lesions Classification with Residual Neural Networks (in progress)
Niklas Hoefflin, Bachelor’s Thesis

Human joint angle measurement exploiting kinematic constraints using an inertial motion capture system (2024)
Nataliya Didukh and Ihor Zhvanko, Bachelor’s Thesis, Link

Algorithmic activity detection based on motion and position sensors (2021)
Phillip Schackier, Bachelor’s Thesis, Link

An Algorithm for Estimating the Performance during Barbell Exercises with Acceleration Sensors (2020)
Felix Lorenz, Bachelor’s Thesis, Link

Lectures

Semester Project: Train Like A Machine
Department of Computer Science, HAW Hamburg
Winter Semester 2021–Summer Semester 2023 (4 Semesters) and Summer Semester 2024
(in German and English)

Guest lecture at Leuphana University Lüneburg
Institute of Culture and Aesthetics of Digital Media, Seminar Data Science, 04.06.2021

Workshops

Gestaltung und Untersuchung der Unterstützung verteilter und hybrider Arbeit (2023)
Co-organisation Link

Methods and Tools for (Semi-)Automated Evaluation in Long-Term In-the-Wild Deployment Studies (2023)
Co-organisation Link

1st Workshop on Evaluating Intelligent and Ubiquitous Mobility Systems – EvalIUMS (2020)
Technical Program Committee Member Link

Evaluation der Nutzung und des Nutzens von (Semi-)Public Displays (2019)
Co-organisation Link

Reviewer Assignments

Multimedia Tools and Applications (2023)
Journal website: Link

Contact

Jan Schwarzer
Postdoctoral Researcher
jan.schwarzer@haw-hamburg.de

Hamburg University of Applied Sciences
Faculty of Engineering & Computer Science
Room 10.87a
Berliner Tor 7, 20099 Hamburg
http://www.haw-hamburg.de/