I am Assistant Professor of Statistics at the University of Bonn.

My research interests focus on functional data analysis, semi- and nonparametric statistics, and longitudinal data analysis.



Submitted Working Papers

Work in Progress

  • Super-consistent estimation of points of impact in nonparametric regression with functional predictors (with Poß, D., Kneip, A., Eisenbarth, H., Wager, T. D., and Feldman Barrett, L.)

  • Take off your shoes! Analyzing the foot strike behavior of habitual shod runners when running barefoot (with Willwacher, S., Hamill, J., and Brüggemann, G. P.)

  • Footstrike adaption to barefoot running (with Willwacher, S.)

  • A subsampled penalty criterion to estimate the number of non-vanishing common factors in large panels (with Bada, O.)

  • On the minor role of bandwidth selection when smoothing sparse to dense functional data

  • Observe the unobservable: Firm value and firm-specific heterogeneity in time trends (with Gider, J.)

  • Life-cycle wage trajectories with missing data: A factor analytic approach (with Pinger, P.)

Recent & Upcoming Talks

  • 13th German Probability and Statistics Days (GPSD), Feb. 27 - Mar. 2, University of Freiburg

  • Joint Research Seminar of Karl-Franzens-University of Graz and TU Graz, Mar. 6 (invited by Hans Manner and Siegfried Hörmann)

  • 4th Conference of the International Society for Nonparametric Statistics (ISNPS), Jun. 11-15, Salerno, Italy (invited by Alicia Nieto-Reyes)

  • 2nd Workshop on Statistics & Econometrics, Jul. 13, 2018, University of Passau (invited by Harry Haupt and Joachim Schnurbus)

  • 2nd Satellite CRoNoS Workshop on Functional Data Analysis, Aug. 31 - Sept. 2, University of Iasi, Romania (invited by Frédéric Ferraty)

  • spinfortec, Sept. 6-7, TU Munich

  • Workshop on Functional Data Analysis and Beyond, Dec. 3-14, Creswick Melbourne, Australia (invited by Aurore Delaigle, Debashis Paul, and Frédéric Ferraty).

  • 11th International Conference on Computational and Methodological Statistics (CMStatistics 2018), Dec. 14-16, University of Pisa, Italy (invited by Gil González Rodríguez)

Teaching Portfolio

Excerpt of past and current courses:


The Annals of Applied Statistics (AOAS), Journal of Time Series Analysis (JTSA), Computational Statistics & Data Analysis (CSDA), Journal of the Royal Statistical Society: Series B (JRSSB), Statistical Modeling: An International Journal (SMIJ), Advances in Statistical Analysis (AStA), Journal of Sport and Health Science (JSHS), Journal of Applied Statistics (JAS), Energy Economics (ENEECO), Journal of Statistical Planning and Inference (JSPI), Journal of Multivariate Analysis (JMVA), Statistica Sinica (SS)


  • Together with my co-author Oualid Bada, I am the creator and maintainer of the R-package phtt. The package provides estimation procedures for panel data with general forms of unobservable heterogeneous effects.

  • R-package FunRegPoI

  • R-package PartiallyFD

  • R-package ReconstPoFD

  • R-package GFLMPOI (under revision)

Institutions & Affiliations

University of Bonn.

Hausdorff Center for Mathematics.

German Sport University Cologne.


  • My former life took (mostly) place in dojos, where I used to wear a judogi.