Working Papers

Detecting and Mitigating Group Bias in Heterogeneous Treatment Effects
Major Revision, Management Science
Learning from Editorial Decisions: Optimizing Audience-Wide Content Promotions with Causal Machine Learning
Major Revision, Management Science

Work in Progress

Return-Aware Platform Experimentation: New Directions for Research
Statistical Foundations of LLM-based A/B Testing: A Surrogacy Framework for Human Causal Inference
Logging Policy Design for Off-Policy Evaluation
Poster: ACIC 2026

Publications

EventChat: Implementation and user-centric evaluation of a large language model-driven conversational recommender system for exploring leisure events in an SME context
ACM Transactions on Recommender Systems — Special Issue on Generative Models for Recommender Systems
Auditing a Dutch Public Sector Risk Profiling Algorithm Using an Unsupervised Bias Detection Tool
IASEAI'26 — International Association for Safe & Ethical Artificial Intelligence
Monitoring the COVID-19 Epidemic with Nationwide Telecommunication Data
with Jurriaan Parie and Stefan Feuerriegel
PNAS (June 2021)
Online supplements Code Invited talks: Public Health Agency of Canada · STATEC Luxembourg [slides] Media: CNBC · The Telegraph · Le Figaro · Radio Canada · Times of Malta
Estimating the effect of mobility on SARS-CoV-2 transmission during the first and second wave of the COVID-19 epidemic, Switzerland, March to December 2020
with Adrian Lison, Nicolas Banholzer, and Stefan Feuerriegel
Eurosurveillance (2022)
Learning Optimal Dynamic Treatment Regimes Using Causal Tree Methods in Medicine
with Theresa Blümlein and Stefan Feuerriegel
Machine Learning for Healthcare (MLHC) 2022
Predicting COVID-19 Spread from Large-Scale Mobility Data
with Amray Schwabe and Stefan Feuerriegel
KDD 2022
Presented: KDD 2021

Other

7 ways to invest in better digital technology to fight pandemics
World Economic Forum (July 2021)