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Contact Information

Name Louis Grenioux
Professional Title Research Fellow
Email lgrenioux@flatironinstitute.org

Professional Summary

Machine learning researcher working at the intersection of deep probabilistic modelling and statistical inference, with a focus on Markov Chain Monte Carlo methods enhanced by deep generative models.

Experience

  • 2026 - present

    New York, USA

    Research Fellow
    Flatiron Institute
    • Using ML-enhanced sampling techniques to solve scientific problems and improve Bayesian inference
  • 2022 - 2022

    Palaiseau, France

    Research Assistant
    CMAP, École Polytechnique
    • Worked under the supervision of Marylou Gabrié and Sylvain Le Corff
    • Developed Markov Chain Monte Carlo algorithms enhanced with deep learning
    • Designed new algorithms for energy-based model estimation using normalizing flows
  • 2021 - 2023

    Paris, France

    Full Stack Data Scientist
    Freelance
    • Developed a web platform to use AI tools
    • Scaled proofs of concept for production usage
  • 2020 - 2020

    Paris, France

    Research Engineer Intern
    Linagora
    • Created AI tools for legal audit automation
    • Developed a data pipeline from scratch (data engineering, modelling, data visualisation, model evaluation)
    • Matched state-of-the-art performance
  • 2014 - 2015

    Gurgaon, India

    Software Engineer (Part-time)
    YU Televentures
    • Developed the Android 6.0 production OS
    • Developed open-source tools for the community

Education

  • 2022 - 2025

    Palaiseau, France

    PhD
    CMAP, École Polytechnique
    Deep Learning and Statistics
    • Supervised by Marylou Gabrié and Éric Moulines
    • Research at the crossroads of deep probabilistic modelling and statistical inference through Markov Chain Monte Carlo
    • Created new sampling algorithms leveraging deep generative models such as normalizing flows and diffusion models
    • Visited José Miguel Hernández-Lobato at the University of Cambridge for 4 months
    • Co-organised the 2nd edition of the Frontiers in Probabilistic Inference workshop at NeurIPS 2025
    • Publications: 1 ICLR paper, 2 ICML papers (including 1 spotlight), 1 ICML workshop paper, 1 ICLR workshop paper
  • 2021 - 2022

    Palaiseau, France

    MSc
    École Polytechnique (IP Paris)
    Data Science
    • Master Year 2 Data Science of Institut Polytechnique de Paris
    • Coursework: Deep Learning, Reinforcement Learning, Computer Vision, Natural Language Processing, Generative Models, MCMC, Optimal Transport, Optimization
  • 2019 - 2022

    Palaiseau/Évry, France

    MSc (Grande École engineering master)
    Télécom SudParis
    Statistics and Computer Science
    • Valedictorian of the promotion TSP2022
    • Coursework: Statistics, Data Analysis, Data Mining, Bayesian Inference, Stochastic Processes
    • Programming: Java, C, Unix, Web Frontend/Backend, SQL

Awards

  • 2022
    Hi!ckathon March 2022 — 1st Innovation, 1st Scientific Approach, 2nd Business Opportunity
    Hi!Paris (Team Hi!Gency)

    2nd edition of Hi!Paris’s high-level hackathon on building AI for climate using computer vision.

  • 2022
    Generative Modelling for Financial Losses — 1st Place
    BNP Paribas and École Polytechnique

    1st position out of 60 teams in an AI competition on improving financial stress-test methods using Generative Adversarial Networks.

  • 2021
    Cassiopée 2021, AI towards Trading — 1st Place
    Télécom SudParis

    Project leader. Built a real-time trading bot using sequential Monte Carlo (without neural networks). 1st position out of 88 teams. Code.

Projects

  • AI4IA — Artificial Intelligence for Industrial Application

    AI competition organised by SKF and hosted by Agorize. Code.

  • Hi!ckathon March 2021 — Team CorAI

    1st edition of Hi!Paris’s high-level hackathon. Building AI for energy efficiency using reinforcement learning. Code.

  • AutoJudge

    Machine learning model predicting the outcome of US Supreme Court judgments. Code.

  • ArXiv Graphs

    Visualising arXiv authors with graphs. Code.

  • Xiaomi SDM439

    Open-source development for Xiaomi products using the SDM439 chipset (Redmi 8, 8A, 8A Pro, 8A Dual, 7, 7A). Code.

  • Tinno MSM8937

    Reference code for open-source development on Tinno’s ODM MSM8937 devices, including YU Yureka Black (garlic), Wiko Wim Lite (wimlite), and Micromax HS2 (hs2) / HS3 (hs3).

  • AOSParadox

    First CAF-based ROM directly mirrored on CodeAurora. Winner of the YU-AOSP-M challenge on 3 devices out of 3. Core developer alongside co-founder Rutash Joshipura. Supported devices include OnePlus One (bacon), OnePlus X (onyx), and various YU devices (Yureka, Yureka Plus, Yureka S, Yureka Black, Yuphoria, Yunique). Code.

Languages

French : Native
English : Fluent
Spanish : Conversational