Dr. Kiefer

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Biography

The Combinatorial Optimization and Graph Algorithms group primarily focuses on research and teaching in the fields of discrete algorithms and combinatorial optimization. The group develops efficient algorithms for discrete optimization problems and analyzes their computational complexity. Their research interests include network flow problems, particularly time flows, unsplittable flows, scheduling models, and stochastic online scheduling. They explore variants of these problems from the perspective of algorithmic game theory. The work emphasizes applications in traffic, transportation, and logistics, often involving interdisciplinary collaborations with researchers and industry partners. Methodologically, the group is focused on efficient approximation algorithms with provable performance guarantees, the analysis of linear and higher-order relaxations, as well as robustness and sensitivity aspects of solutions to mathematical optimization problems. They also contribute to rigorous mathematical analyses of methods involving artificial intelligence, neural networks, and meta-heuristics.

Research Interests

Requirements for Technical University of Berlin

Master Program
Requirements
GPA Requirement
Required:3
IELTS
Overall
Required:6.5
TOEFL
Total
Required:87
PTE
Overall
Required:65
Duolingo
Overall Score
Required:120
Overall
Required:120
Prerequisites
Recognized first university degree (Bachelor or equivalent) Specific ECTS in related subjects (e.g., 36 ECTS in Fundamentals of Computer Science for CS programs) Evidence of previous Master's studies (if applicable) Module descriptions of previous study program
Application Checklist
  • Officially certified copy of University degree certificate
  • Transcript of Records
  • Tabular CV
  • Motivation letter (program specific)
  • APS Certificate (for applicants from China, India, and Vietnam)
  • Proof of English proficiency (B2/C1 depending on program)
  • Copy of Passport
  • Preliminary Review Documentation (VPD) from uni-assist
Specialization Notes

Requirements are consistent for general engineering and computer science programs. Specific advanced master's (MBA/Energy) may require 1 year of professional experience.