Hasso-Plattner-Institut
Prof. Dr. Tobias Friedrich
 

Dr. Ralf Rothenberger

This is an archived page of a former group member.

Research Interests

My research interests include several topics of algorithmics and theoretical computer science.

  • graph theory
    • graph algorithms
    • random graphs
    • scale-free networks
  • satisfiability
    • random SAT models
    • phase transitions
    • proof complexity
  • algorithms
    • random algorithms
    • load balancing
    • approximation algorithms

Teaching

As Advisor

 

Activities

Since 2017 I am a member of the HPI's board game club.

Past Activities:

 

Code and Tools

Power-Law Random SAT generator

The algorithm for this generator was proposed by Ansótegui et al. in "Towards industrial-like random SAT instances" (IJCAI 2009).
We used this generator for the experiments in "Phase Transitions for Scale-Free SAT Formulas" (AAAI 2017) and "Bounds on the Satisfiability Threshold for Power Law Distributed Random SAT" (ESA 2017).

The code of our implementation can be found here.

 

Publications

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