Tobias Freidling
Tobias Freidling

Postdoctoral Researcher

About Me

I am a postdoctoral researcher at École Polytechnique Fédérale de Lausanne at the Chair of Biostatistics held by Mats Stensrud.

I am broadly interested in developing statistical methods to advance data analysis under realistic assumptions, particularly in causal inference.

Before joining EPFL, I completed my PhD degree at the Statistical Laboratory of the University of Cambridge under the supervision of Qingyuan Zhao and obtained a Master in Mathematics at TU Munich advised by Mathias Drton.

Beyond this, I also undertook industry projects in the implementation of RNNs with Tensorflow, Bayesian optimal experimental design and detection of synthetically lethal gene pairs based on CRISPR knock-out experiments.

Interests
  • Causality
  • Sensitivity Analysis
  • Randomization Inference
  • Selective Inference
  • Applied Statistics
Education
  • PhD Mathematics of Information, 2024

    University of Cambridge

  • M.Sc. Mathematics, 2020

    Technical University of Munich

  • Exchange Research Student, 2020

    Kyoto University

  • Visiting Student, 2018

    University of Oxford

  • B.Sc. Mathematics, 2017

    Ludwig Maximilian University, Munich

Publications and Pre-Prints
(2026). The Cornfield Condition and Principle: A Critical Appraisal. Observational Studies.
(2026). Counterfactual Optimization of Policy Interventions: Lexical Ordering and Leapfrogging.
(2026). Selective Randomization Inference for Adaptive Experiments. Journal of the Royal Statistical Society: Series B.
(2026). Optimization-based Sensitivity Analysis for Unmeasured Confounding using Partial Correlations. Journal of Computational and Graphical Statistics.
(2021). Post-selection Inference with HSIC-Lasso. ICML 2021.
(2021). Confidence in Causal Discovery with Linear Causal Models. UAI 2021.
Invited Talks

RSS International Conference

Bournemouth, UK

Selective Inference in Adaptive Trials

IMS Annual Meeting

Salzburg, Austria

Selective Inference In Adaptive Trials

34th Conference of the Austro-Swiss Region of the Biometric Society (ROeS)

Graz, Austria

Selective Randomization Inference for Adaptive Experiments

International Indian Statistical Association Conference

Lincoln, NE, USA

Optimization-based Sensitivity Analysis

Advanced Methods and Data Science Seminar

Novartis, online

Selective Randomization Inference for Adaptive Experiments

Causal Machine Learning Workshop

University of Southampton

Selective Randomization Inference for Adaptive Experiments

Machine Learning and Data Science Seminar

Okinawa Institute of Science and Technology, Japan

Sensitivity Analysis with the R2-Calculus

Online Causal Inference Seminar

online

Sensitivity Analysis with the R2-Calculus

RIKEN Advanced Intelligence Project (AIP) Seminar

online

Post-selection inference with HSIC-Lasso

Other Presentations and Talks

European Causal Inference Meeting

Oxford, UK

Randomization Inference with Concentration Inequalities

IMS International Conference on Statistics and Data Science

Sevilla, Spain

Randomization Inference with Concentration Inequalities

International Conference on Robust Statistics

Stresa, Italy

Selective Randomization Inference for Adaptive Experiments

GSK.ai PhD Symposium

London, UK

Selective Randomization Inference for Adaptive Experiments

Bernoulli-IMS 11th World Congress in Probability and Statistics

Bochum, Germany

Selective Randomization Inference for Adaptive Experiments

American Causal Inference Conference

Seattle, WA, USA

Selective Randomization Inference for Adaptive Studies

European Causal Inference Meeting

Copenhagen, Denmark

Selective Randomization Inference for Adaptive Experiments

Response-Adaptive Randomisation in Clinical Trials Workshop

MRC Biostatistics Unit, Cambridge

Selective Randomization Inference for Adaptive Clinical Studies

Statistics Student Seminar

University of Chicago

Selective Randomization Inference for Adaptive Studies

European Causal Inference Meeting

Oslo, Norway

Sensitivity Analysis with the R2-Calculus

American Causal Inference Conference

Berkeley, CA, USA

Sensitivity Analysis with the R2-Calculus

GSK.ai Research Symposium

online

Sensitivity Analysis with the R2-Calculus

International Conference on Machine Learning

online

Post-selection inference with HSIC-Lasso

Teaching

During my time in Cambridge, I was twice teaching assistant for the Part III course ‘Causal Inference’, mainly holding classroom-style tutorials. At EPFL, I had the same role for the Master course ‘Computation and Visualization’, marked the students’ programming assignments and answered their questions in the weekly tutorials. Moreover, I acted as “supervisor” for multiple Bachelor statistics courses at Cambridge. In this role, I supervised several small groups of students, marked their homework assignments and tailored the biweekly tutorials to their individual progress.

I have also gathered experience advising students on individual projects. During my PhD, I supervised one summer exchange student visiting the University of Cambridge, and at EPFL I supervised two Bachelor theses this far.

In summer 2026, and I were project supervisors in the ‘Young Researchers in Mathematics Program’ held at EPFL’s Bernoulli Center. A small group of undergraduate students were invited to come to Lausanne for a week and work on their first research project. Nils and I advised the students in the statistics track of the programme and we keep working on the project with the students.

In the autumn semester 2026, I teach a PhD course called ‘Perspectives on Randomness in Statistics’ at EPFL. We investigate different frameworks of conceptualizing randomness (frequentist super-population, design-based, Bayesian etc.) and discuss their suitability for specific applications.