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 Supervision

Currently, I am unable to supervise any additional theses (Bachelor/Master).

Past 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)
• Planning, execution, and evaluation of load tests of a distributed backend system for the provision of telephony functions (Master, October 2024)
• Load Balancing for Dynamic Consistency Guarantees in Web Requests (Bachelor, January 2025)
• Free-Riders in Decentralized Federated Learning: Evaluating Solutions from Peer-to-Peer Systems (Master, January 2025)
• Load Balancing for Dynamic Consistency Guarantees in Web Requests (Bachelor, January 2025)
• Comparing Performance Impacts of DNS Security Mechanisms (Bachelor, February 2025)
• A Systematic Evaluation of Docker Swarm and K3s as Container Orchestration Solutions (Bachelor, March 2025)
• Hardware-in-the-Loop Testing in CI/CD for IoT Firmware Development (Bachelor, July 2025)
• AI-based Prediction of Crucible Wear in Crucible Induction Furnaces (Bachelor, May 2026)
• Vertical Split Learning in the Cloud: A Vulnerability Analysis (Master, May 2026)

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Publications (6)

2024 (1)

• Carl, Oskar and Weis, Torben
  BitTorrent-based Gossip Learning
  In: 14th International Conference on the Internet of Things (IoT 2024), November 19--22, 2024, Oulu, Finland
  DOI: 10.1145/3703790.3703813

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

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 26

• Let’s just make a Game 4.0! Multiplayer Edition

WiSe 25/26

• Cloud, Web & Mobile
• Mic & Magic - Live AI assistant for Pen&Paper game masters

SoSe 2025

• Beep Boop Showdown
• Peer-to-Peer Systeme
• Scientific writing with AI-based tools

WiSe 24/25

• Cloud, Web & Mobile

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