Hey! My name is Steven and I am a Ph.D. student in the Databases and Information Systems group at Humboldt University of Berlin, fortunate to be supervised by Prof. Dr. Matthias Weidlich.

My research focuses on the intersection of:
  • Event stream processing, e.g., {approximate, distributed} complex event processing
  • Probabilistic data structures, e.g., designing summaries and sketches
  • Learning-based algorithms, e.g., using prediction oracles
In addition, I am a theoretical computer science enthusiast, whereby I am particularly interested in topics concerning:
  • Automata theory and formal languages
  • {parameterized, fine-grained, descriptive} complexity theory
  • Solving NP-hard optimization problems, i.e., exact and approximation algorithms
  • Problems in NP ∩ coNP without known polynomial-time algorithms (I share Jack Edmonds view: NP ≠ NP ∩ coNP = P)
  • Graph theory
I am inquisitive and delighted to help new students get started in their studies, trying to convey the same passion for computer science that I have within me. I teach to learn better.

When I am not sitting in front of the computer, I like to spend time hiking (with my dog), camping, drinking tea or hanging out with friends.

Thank you for stopping by, and please always feel welcome to contact me! :)