PhD Researcher · Machine Learning · Deep Learning · Defense AI

Research scientist and ML engineer designing robust methods for detection, uncertainty, and real-world signal intelligence.

I am a PhD researcher at CentraleSupélec / Université Paris-Saclay, conducting my research within ONERA / SONDRA, a France–Singapore research alliance involving CentraleSupélec, ONERA, NUS, and DSO National Laboratories. My work focuses on robust radar target detection, generative modeling, out-of-distribution detection, and complex-valued learning. In parallel, I build reproducible software and experimental pipelines shaped by scientific-software experience in testing, documentation, packaging, CI/CD, and deployment-oriented engineering. I am seeking roles in quantitative research / quantitative ML, deep-tech AI research and engineering, and defense AI.

OOD Detection Generative Modeling Signal Processing Complex-Valued Learning PyTorch CI/CD & Testing
Portrait of Yadang Alexis Rouzoumka

Target roles

I position my profile across three complementary tracks, united by the same core strengths: mathematical grounding, research originality, and dependable engineering execution.

Track 1

Quant Research / Quant ML

Statistical learning, robust detection under severe noise, probabilistic modeling, optimization, and structured signal reasoning that transfer naturally to quantitative research and ML-driven trading research.

Track 2

AI Research / ML Engineering

Research and engineering around diffusion models, VAEs, OOD detection, evaluation, and reliable ML systems. I do not only implement ideas from the literature: I also formulate new research directions, build them into code, and validate them through ablations, benchmarks, and rigorous experimental analysis.

Track 3

Defense AI

End-to-end research experience in robust radar target detection, complex-valued deep learning, whitening and detector-fusion strategies, and statistical reasoning under challenging clutter and thermal-noise conditions.

Selected work

A view of the themes I work on, the problems I solve, and the current maturity of each line of work.

Robust radar detection with generative models

Research

My PhD work focuses on out-of-distribution radar detection. I design original methods and evaluation protocols around real-valued and complex-valued VAEs, latent-space metrics, whitening strategies, and fusion with classical detectors, and I am extending this research to diffusion and flow-based approaches.

Scientific software at PHIMECA

Engineering

At PHIMECA, I worked on uncertainty quantification and scientific software engineering, including testing, documentation, packaging, CI/CD integration, and executable delivery. This experience shaped the way I build research code: structured, reproducible, and usable beyond a single experiment.

Diffusion models for OOD detection

Research

This research direction studies how score-based and diffusion models can support training-free probing, posterior-consistency analysis, score-space geometry, and interpretable anomaly localization. It currently includes GEPC and follow-on work aimed at developing new OOD methods across both image and signal settings.

LOB simulator

Ongoing

An ongoing research-engineering project on market microstructure and order-book simulation. The current scope includes replay-based simulation, TCA benchmarking against TWAP/VWAP/POV baselines, guardrailed execution-policy evaluation, and reproducible API/UI tooling.

Research and engineering profile

Positioning

Across research and software work, I operate from method design to implementation, evaluation, documentation, testing, CI/CD, and packaging. That combination matters for teams that need original ideas together with dependable execution, whether in AI labs, quantitative research groups, or deep-tech and defense environments.

Publications and preprints

Public PDF and arXiv links are listed whenever they are available.

GEPC: Group-Equivariant Posterior Consistency for Out-of-Distribution Detection in Diffusion Models

Y. A. Rouzoumka, J. Pinsolle, E. Terreaux, C. Morisseau, J.-P. Ovarlez, C. Ren — submitted to ICML 2026 · arXiv preprint

Out-of-Distribution Radar Detection in Compound Clutter and Thermal Noise through Variational Autoencoders

Y. A. Rouzoumka, E. Terreaux, C. Morisseau, J.-P. Ovarlez, C. Ren — ICASSP 2025

Complex-Valued Variational Autoencoders for Radar Detection in Joint Compound Gaussian Clutter and Thermal Noise

Y. A. Rouzoumka, E. Terreaux, C. Morisseau, J.-P. Ovarlez, C. Ren — EUSIPCO 2025

PDF

Latent-space Metrics for Complex-Valued VAE Out-of-Distribution Detection under Radar Clutter

Y. A. Rouzoumka, E. Terreaux, C. Morisseau, J.-P. Ovarlez, C. Ren — ICASSP 2026

Support Vector Data Description for Radar Target Detection

J. Pinsolle, Y. A. Rouzoumka, C. Ren, C. Morisseau, J.-P. Ovarlez — ICASSP 2026

Out-of-Distribution Radar Detection with Complex VAEs: Theory, Whitening, and ANMF Fusion

Y. A. Rouzoumka, J. Pinsolle, E. Terreaux, C. Morisseau, J.-P. Ovarlez, C. Ren — submitted to IEEE Transactions on Signal Processing · arXiv preprint

DopplerGLRTNet for Radar Off-Grid Detection

Y. A. Rouzoumka, J. Pinsolle, E. Terreaux, C. Morisseau, J.-P. Ovarlez, C. Ren — submitted to EUSIPCO 2026 · arXiv preprint

Détection de cibles radar par auto-encodeur variationnel

Y. Rouzoumka, E. Terreaux, C. Morisseau, J.-P. Ovarlez, C. Ren — GRETSI 2025

PDF

Radar Detection through Rectified Flow Matching

P. Meena, Y. A. Rouzoumka, J. Pinsolle, C. Ren, M. N. El Korso, J.-P. Ovarlez — submitted to EUSIPCO 2026

Public PDF coming soon

Autoencodeur variationnel complexe pour la détection de cibles radar

Y. A. Rouzoumka, E. Terreaux, C. Morisseau, J.-P. Ovarlez, C. Ren — submitted to JDS 2026

Public PDF coming soon

Experience

PhD Researcher — Machine Learning for Robust Radar Target Detection

CentraleSupélec · Université Paris-Saclay · ONERA / SONDRA · since October 2023. Research conducted within SONDRA, the France–Singapore research alliance in radar, electromagnetics, signal processing, and AI.

  • • Original research on robust radar detection using VAEs, complex-valued deep learning, diffusion-based methods, and OOD scoring.
  • • Design of theory-backed detection methods and evaluation protocols under compound clutter and thermal noise.
  • • Reproducible pipelines in Python / PyTorch for benchmarking, ablations, and statistical analysis.

R&D Engineer / AI and Scientific Software — PHIMECA

Internship and apprenticeship experience · 2022

  • • R&D studies on metamodels, reliability, Bayesian correction, and uncertainty quantification.
  • • Development of Python modules and engineering workflows for scientific computing, measurement-error correction, packaging, and executable delivery.
  • • Documentation with Sphinx, CI/CD with GitLab CI and Docker, testing, and production-oriented software practices.

Teaching Assistant

IUT Computer Science · Université Paris-Saclay · since October 2024

  • • Mathematics for signal processing
  • • Efficient development in Java
  • • Database management in SQL

Contact

I am open to conversations about quantitative research, AI research / ML engineering, deep-tech ML, and defense AI roles.

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