Profile

I am an applied statistician and data scientist with a background in mathematics, working as a statistical consultant for the analysis of clinical and medical data, as well as a senior researcher.

Statistical Consulting

Researchers and doctoral students at the Medical Faculty Mannheim of Heidelberg University and/or the University Medical Centre Mannheim: If you would like to schedule a statistical consulting session for your project, please contact me.

Research Interests

My research interests include:

Publications

Selected publications:

  • Schefzik, Roman and Cao, Han and Rajan, Sivanesan and Escribà-Montagut, Xavier and González, Juan R and Schwarz, Emanuel Integrating differential privacy into federated multi-task learning algorithms in dsMTL, Bioinformatics Advances, 2025. [DOI]
  • Schefzik, Roman and Boland, Leonie and Hahn, Bianka and Kirschning, Thomas and Lindner, Holger A and Thiel, Manfred and Schneider-Lindner, Verena Differential network testing reveals diverging dynamics of organ system interactions for survivors and non-survivors in intensive care medicine, Frontiers in Physiology, 2022. [DOI]
  • Schefzik, Roman and Flesch, Julian and Goncalves, Angela Fast identification of differential distributions in single-cell RNA-sequencing data with waddR, Bioinformatics, 2021. [DOI]
  • Schefzik, Roman and Möller, Annette Ensemble postprocessing methods incorporating dependence structures, 2018. [DOI]
  • Schefzik, Roman and Thorarinsdottir, Thordis L and Gneiting, Tilmann Uncertainty quantification in complex simulation models using ensemble copula coupling, Statistical Science, 2013. [DOI]

For a full list of my publications, working papers and software packages, please see here.

Teaching

In the summer semester of 2026, I am teaching seminars and exercises in biomathematics for medical students at the Medical Faculty Mannheim of Heidelberg University.

Contact