Supervised Theses

  • Programming interface for data acquisition of a protocol for remote access to resource-restricted IoT devices (Bachelor, May 2021)
  • Security Layer for a Remote Access and Data Acquisition Protocol (Master, November 2021)

Topics for Theses

In our research we work on the modeling, analysis and longevity of Cyber-Physical Systems (CPS). Many components of CPS are developed and operated on the basis of models, that represent the assumed behavior of the CPS. Significant or continuous small changes in the CPS, as well as wear and tear, however, reduce the suitability between models and system behavior. Specifically, we are concerned with the question of how these models can be used for the CPS from the initial conception until it no longer sufficiently captures the CPS behavior. This includes, for example, the creation of benchmarks, data smoothing, the identification of flawed behavior, monitoring of suitability and the generation of suggestions for improvement to the model and/or CPS. We are currently researching these topics using a formalism that we have devised, based on hidden Markov models, and the simulation of a smart home system. If you are interested in any of these, please write to me and we can come up with a topic that fits the research area and your interests / skills.

Topics for theses that don’t regard my research

In my master’s thesis I developed a protocol that allows restricted devices to offer a user interface and data acquisition. The special thing about this paradigm is that the server has limited resources and not the client. Important principles when creating the protocol were therefore efficiency and interoperability without application knowledge. In other thesis that I supervised, work was already being carried out on this protocol. The API side of the server was examined in more detail and a security layer was added to the protocol stack. In a further thesis, a suitable formalism is also being worked on in order to represent the services of the server as efficiently as possible and to enable machine-to-machine communication via a gateway and device discovery. Due to the incremental nature of this protocol development, it is usually only possible to assign one thesis in this subject area at the same time. If you are interested in the protocol, its extension or any areas of application, please write to me!

Videos of Presentations


Publications (3)

2021 (3)

  • Carl, Oskar and Zdankin, Peter and Schaffeld, Matthias and Matkovic, Viktor and Yu, Yang and Elbers, Timo and Weis, Torben
    Persistent Streams: The Internet With Ephemeral Storage
    In: Tagungsband des FG-BS Herbsttreffens 2021
  • Zdankin, Peter and Schaffeld, Matthias and Carl, Oskar and Waltereit, Marian and Weis, Torben
    An Algorithm for Dependency-Preserving Smart Home Updates
    In: PerIoT 2021: 5th International Workshop on Mobile and Pervasive Internet of Things (PerIoT 2021)
  • Schaffeld, Matthias and Weis, Torben
    Towards Robust Models of Cyber-Physical Systems
    In: Adjunct Proceedings of the 2021 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2021 ACM International Symposium on Wearable Computers

Talks

  • Towards Robust Models of Cyber-Physical Systems, UbiComp 2021: ACM International Joint Conference on Pervasive and Ubiquitous Computing, September 26, 2021

Projects


Teaching

WiSe 21/22

SoSe 2021

WiSe 20/21

Matthias Schaffeld

Research Assistant

Contact

  • Phone: +49 203 379 2726
  • E-Mail: matthias.schaffeld[@uni-due.de]

Postal address

  • Building BC, Room 406
  • Bismarckstr. 90 47057 Duisburg, Germany

Consultation hour

By appointment

Brief CV

Since 09/2020

Research and Teaching Associate, University of Duisburg-Essen

08/2020

Master of Science in Applied Computer Science, University of Duisburg-Essen

04/2018 - 09/2018

Student Tutor for the Programming Paradigms lecture, University of Duisburg-Essen

04/2017

Bachelor of Science in Applied Computer Science, University of Duisburg-Essen

12/2014 - 03/2019

Member of Student Council in Applied Computer Science, University of Duisburg-Essen

10/2014 - 08/2020

Student Tutor at the Chair for Theoretical Computer Science, University of Duisburg-Essen

10/2013 - 08/2020

Study of Applied Computer Science, University of Duisburg-Essen