Dorian Baudry

Dorian Baudry

Post-Doctoral Researcher

University of Oxford

Biography

I am currently a postdoctoral researcher in the Department of Statistics at the University of Oxford, working with Patrick Rebeschini on online learning and optimization. In July 2025, I will start a new position as a permanent researcher at Inria Grenoble in the new Ghost team (formerly Polaris).

Prior to that, I was a postdoctoral researcher at the Inria Fairplay team, based at ENSAE Paris, collaborating with Vianney Perchet. My work focused on online algorithms and bandit models, particularly in structured and constrained problem settings, with practical applications in online advertising and recommendation systems.

I received my PhD in Computer Science from the University of Lille, where I worked under the direction of Emilie Kaufmann and Odalric-Ambrym Maillard in the INRIA ScooL team. My PhD research focused on non-parametric algorithms for the Multi-Armed Bandit problem, motivated by an application in agriculture. I explored several approaches based on sub-sampling or bootstrapping, designed to work under realistic non-parametric assumptions on the reward distributions. I then extended these works to address practical considerations: risk-aware learning, non-stationarity of rewards, and batched feedback. During my PhD, I also had the privilege to visit Pr. Junya Honda at the University of Kyoto for 3 months, where I further explored the connection between different families of bandit algorithms.

Interests

  • Multi-Armed Bandits
  • Online Learning
  • Statistics
  • Machine Learning

Education

  • PhD in Computer Science, 2019-2022

    CNRS/Inria Lille, SequeL/ScooL team

  • MSc Mathématiques Vision Apprentissage (MVA), 2019

    ENS Paris-Saclay

  • MSc in Statistics and Computer Science, 2019

    ENSAE Paris

Experience

 
 
 
 
 

Post-doctoral researcher

University of Oxford

Jul 2023 – Jun 2024 Oxford, United Kingdom
Post-doctoral researcher in the Department of Statistics, working with Patrick Rebeschini.
 
 
 
 
 

Post-doctoral researcher

Inria Fairplay, ENSAE

Jan 2023 – Jan 2024 Palaiseau, France
Post-doctoral researcher, working with Vianney Perchet.
 
 
 
 
 

Research visit

Kyoto University

Apr 2022 – Jul 2022 Kyoto, Japan
3-months research visit to collaborate with Junya Honda, in the context of the RELIANT associate team.
 
 
 
 
 

Teaching Assistant

University of Lille

Jan 2020 – Apr 2022 Lille, France
~150 hours of teaching during my PhD. Teachings include: Data Mining, Natural Language Processing, Mathematics for the Economist.
 
 
 
 
 

Data Scientist

Kayrros

May 2019 – Oct 2019 Paris, France
Research project on the analysis of news to predict movements of different assets in the energy market.