CV

Education

• MSc., Data Science for Business, Ecole Polytechnique, 2023
• Master in Management, HEC Paris, 2023

Work experience

• 2023: Reseacher and Data Scientist
  • Quinten Health
• 2022: Research Assistant
  • World Bank
• 2021: Consultant
  • Capgemini Invent

Publications

Causal meta-analysis: Rethinking the foundations of evidence-based medicine

Principled Federated Random Forests for Heterogeneous Data

Handling Covariate Mismatch in Federated Linear Prediction

Federated Causal Inference from Multi-Site Observational Data via Propensity Score Aggregation

Khellaf, R., Bellet, A., & Josse, J. (2025). Federated Causal Inference from Multi-Site Observational Data via Propensity Score Aggregation." ICML 2026.

Federated Causal Inference: Multi-Study ATE Estimation beyond Meta-Analysis

Khellaf R., Bellet A., Josse J. (2024). "Federated Causal Inference: Multi-sources ATE estimation." AISTATS 2024.

Reviewing

• ICML 2026 (Top Reviewer Award)
• Neurips 2026
• ICLR 2025

Talks

Presentations

July 07, 2025

Talk at Pacific Causal Inference Conference, Beijing, China

Teaching

Introduction to Probabilistic Graphical Models

Misc

• I like to play classical and jazz music! I play the piano, saxophone and clarinet.