Theo Lepage
Ph.D. in AI•Self-Supervised Learning for Speech & Speaker Recognition•Open to Research Scientist Roles
Paris, France
theolepage.com
theo@theolepage.com
Theo Lepage
theolepageExperience
Ph.D. Researcher at EPITA Research Laboratory (LRE)
Paris, France
Nov. 2022 - Feb. 2026- Published 8 papers at top peer-reviewed venues (IEEE TASLP, Speech Communication, Interspeech)
- Proposed novel methods for self-supervised speaker recognition → SOTA performance (1.06% EER on VoxCeleb1-O)
- Introduced a latent-space positive sampling strategy (SSPS) → reducing intra-speaker variability (-58% EER for SimCLR)
- Developed and maintained sslsv, an open-source PyTorch toolkit for self-supervised speaker verification
- Teaching assistant at EPITA for "Intro to Deep Neural Networks" and "Python for Data Science" (2023-2025)
Research Scientist (Internship) at Siemens Healthineers
Princeton, USAFeb. 2022 - Sep. 2022- Developed deep learning models for end-to-end MR image enhancement (denoising & super-resolution)
- Designed a CNN architecture with attention mechanisms, improving reconstruction quality over existing solutions
- Explored generative approaches (GANs) to synthesize MR images for training data augmentation
Software Engineer (Internship) at CNRS
Paris, FranceSep. 2020 - Jan. 2021- Contributed to a real-time digital holography software (C++/CUDA) for retinal blood flow analysis
- Achieved a 20× speedup (500 → 10,000 FPS), significantly improving image quality and contrast
- Improved software reliability through refactoring and unit testing, enabling open-source release
Education
Sorbonne Université (Ph.D. in Artificial Intelligence)
Paris, FranceNov. 2022 - Feb. 2026- Thesis: "Self-Supervised Learning for Speaker Recognition" (https://theolepage.com/phd_thesis)
- Advisors: R. Dehak (LRE-EPITA) and T. Géraud (LRE-EPITA)
- Committee: J.-F. Bonastre, B. Lecouteux, D. Matrouf, I. Illina, A. Larcher, and D. Reynolds
École Pour l'Informatique et les Techniques Avancées - EPITA (M.Eng. in Computer Science)
Paris, FranceSep. 2017 - Sep. 2022- Major: Signal Processing, Computer Vision, Machine Learning & Deep Learning (GPA: 3.9/4.0)
- Research student (supervised by R. Dehak); Teaching assistant (Unix, C, Rust); Exchange semester at CSUMB (Spring 2019)
Publications
Speech Communication•2026•Theo Lepage and Reda Dehak
Interspeech•2025•Theo Lepage and Reda Dehak
IEEE TASLP•2025•Theo Lepage and Reda Dehak
ASVspoof Workshop•2024•Theophile Stourbe, Victor Miara, Theo Lepage, and Reda Dehak
Towards Supervised Performance on Speaker Verification with SSL by Leveraging Large-Scale ASR ModelsInterspeech•2024•Victor Miara, Theo Lepage, and Reda Dehak
Odyssey Workshop•2024•Theo Lepage and Reda Dehak
Interspeech•2023•Theo Lepage and Reda Dehak
Interspeech•2022•Theo Lepage and Reda Dehak
Projects
Speaker & language recognition service from the browser or via the API, powered by SOTA AI speech models, with free and pay-as-you-go plans.
Deep learning toolkit based on PyTorch for training & evaluating self-supervised models for speaker verification and other speaker-related tasks.
Self-supervised framework to fine-tune WavLM for speaker verification via pseudo-labeling, without speaker labels, achieving SOTA on VoxCeleb1-O.
Skills & Interests
Programming
Python
C
C++
CUDA
Java
JavaScript
Bash
Data Science
PyTorch
TensorFlow
Scikit-learn
NumPy
Pandas
Tools
Git
LaTex
Docker
Slurm
SQL
Languages
English (TOEIC 905)
French (native)
Passions and interests
Science and AI
Robotics
Sailing & windsurfingAn up-to-date version of this document is available at theolepage.com/resume.