Research

My research is primarily focused on decentralized distributed systems and machine learning, specifically the field of decentralized federated learning. The combination of these topics poses a particularly interesting possibility for the development of robust and privacy-preserving machine learning.

Thesis Topics

Topics for supervision of theses are primarily in my fields of research: decentralized distributed systems, online privacy, decentralized machine learning. In these areas we occasionally find interesting questions that are suitable to elaborate in a thesis. If you have an idea for a problem in these fields that might be interesting to work on, we can work out the specifics of the thesis together.
Aside from that, I have also supervised theses on security questions on occasion. However, since my primary research interests lie in other areas, I cannot oversee topics that require intimate knowledge of specific methods.
You can use the list of previously supervised topics below as insipration to find a problem to work on.

Supervised Theses

• Applying security principles in NFC based employee hour tracking systems (Bachelor, September 2020)
• Evaluation of Bootstrapping Mechanisms for Persistent Streams (Bachelor, January 2021)
• Building a Stateless Privacy-Focused Microblogging Service on a Decentralized Architecture (Master, July 2021)
• Random Numbers in Cryptography - Analysis on the Prevalence of Unsafe (Pseudo) Random Numbers in Open Source Software (Bachelor, July 2021)
• Efficient Transparent Proxies for QUIC Frames in Persistent Streams (Bachelor, September 2021)
• Development of an Azure IoT Edge Module for Physik Instrumente Devices (Bachelor, June 2022)
• An Analysis of Known Security Flaws in Building Automation Protocols (Bachelor, July 2022)
• Reducing Server Load by Increasing the Efficiency of Push Notifications (Bachelor, August 2022)
• Discovery and Distribution Mechanisms for Longevity Digital Twins (Master, July 2023)
• Integrating Graphical Output Capabilities into the MIC-1 (Bachelor, September 2023)
• Design of a Customizable Lossless Data Compression Algorithm (Master, January 2024)

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Publications (6)

2023 (1)

• Yu, Yang and Carl, Oskar and Hussain, Shabir and Hou, Weiyan and Weis, Torben
  A Privacy-Protecting Step-Level Walking Direction Detection Algorithm Based on Floor Vibration
  In: IEEE Sensors Journal
  DOI: 10.1109/JSEN.2022.3209909

2022 (1)

• Yu, Yang and Carl, Oskar and Hussain, Shabir and Hou, Weiyan and Weis, Torben
  A Privacy-Protecting Step-Level Walking Direction Detection Algorithm Based on Floor Vibration
  In: IEEE Sensors Journal

2021 (2)

• 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
  DOI: 10.18420/fgbs2021h-01
• 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)
  DOI: 10.1109/PerComWorkshops51409.2021.9431040

2020 (2)

• Zdankin, Peter and Carl, Oskar and Waltereit, Marian and Matkovic, Viktor and Weis, Torben
  Requirements and Mechanisms for Smart Home Updates
  In: SENSYBLE 2020, 2nd workshop on Smart Systems for Better Living Environments
  DOI: 10.18420/inf2020_91
• Weis, Torben and Zdankin, Peter and Carl, Oskar and Waltereit, Marian
  Group-based Memory Management in Fyr
  In: Tagungsband des FG-BS Herbsttreffens 2020
  DOI: 10.18420/fgbs2020h-02

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Teaching

SoSe 2024

• Computer Architecture

WiSe 23/24

• Cloud, Web & Mobile

SoSe 2023

• Machine Learning
• Peer-to-Peer Systeme

WiSe 22/23

• Cloud, Web & Mobile
• Rechnernetze und Kommunikationssysteme

SoSe 2022

• Peer-to-Peer Systeme
• Rechnerarchitektur

WiSe 21/22

• ChuuChuUDP
• Cloud, Web & Mobile

SoSe 2021

• Peer-to-Peer Systeme
• Sicherheit in Kommunikationsnetzen
• Verteilte Systeme

WiSe 20/21

• Cloud, Web & Mobile
• prOSyt - Project: Operating System

SoSe 2020

• Rechnerarchitektur