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Cheick T. Cissé

Experience

Experience

A research track that has stayed close to production: a CIFRE doctorate inside an operator, then a research role shipping generative models into it.

Apr 2025 — Present

Belfort, France

Full-time

Applied AI Scientist

Orange Business

Flux Vision — Orange Research

Generative models for synthetic human-mobility data, from research prototype to production pipeline.

  • Research lead on transformer-based generative models that synthesise realistic mobility traces, letting Orange derive value from operator data without exposing real subscriber trajectories.
  • Engineered the data pipelines behind it: Apache Airflow orchestrating distributed processing across multiple hosts, parallelised horizontally with Docker and Celery.
  • Took models from notebook to production: reproducible training, tracked experiments, containerised serving, MLOps practice throughout.
  • Defined and opened a Master’s-level research internship on generative mobility modelling; scoped the subject and supervised the work.
  • Work with network, privacy and product stakeholders to turn research output into deployable systems.
PythonPyTorchTransformersHugging FaceAirflowCeleryDockerMLflowGCP

Dec 2021 — Dec 2024

Belfort, France

Doctorate

PhD Researcher — Deep Learning for Radio Planning

Orange

Doctorate with UTBM — FEMTO-ST Institute

Replaced slow physical simulation with generative models that predict Wi-Fi coverage directly from a floor-plan image, then optimised access-point placement on top.

  • Designed IRGAN, a conditional GAN that predicts a full indoor radio map from a single 2D floor plan at 2.5 dB RMSE — fast enough to sit inside an optimisation loop, unlike ray tracing.
  • Extended the approach with conditional diffusion models and a physics-informed ResUNet, placing Top-5 of 16+ teams in the ICASSP 2025 Grand Challenge on generalisable path-loss prediction.
  • Solved the sim-to-real gap by fine-tuning on crowd-sourced 5 GHz measurements from live home networks (EuCAP 2024).
  • Coupled the learned propagation model with metaheuristics — simulated annealing, tabu search, genetic algorithms — for automatic access-point placement under coverage and throughput constraints.
  • Filed a patent on incorporating model uncertainty into indoor Wi-Fi optimisation.
  • Published 4 international and 3 national papers; shipped a React + Flask demonstrator used to present the work internally.
  • Supervised a Master’s thesis on automatic floor-plan vectorisation; taught wireless systems, Linux and C for two years.
PythonPyTorchTensorFlowOpenCVPymooSlurmDockerReactFlask

Mar 2021 — Sept 2021

Boulogne-sur-Mer, France

Internship

Research Intern — Remote Sensing

LISIC, Université du Littoral Côte d’Opale

Deep learning for multispectral / hyperspectral satellite image fusion.

  • Designed a fusion architecture from scratch that uses Sentinel-3 hyperspectral data to fill gaps in Sentinel-2 multispectral time series, raising effective temporal resolution.
  • Published the result at ICASSP 2022 and GRETSI 2022 as first author.
PythonTensorFlowNumPyscikit-image

Skills

Technical range

Generative modelling

Diffusion modelsGANs / cGANsVAEsTransformersSequence models

Machine learning

PyTorchTensorFlowHugging Facescikit-learnTransfer learningArchitecture search

Applied domains

NLP / low-resource MTComputer visionRemote sensingRadio propagationCombinatorial optimisation

Engineering & MLOps

PythonDockerMLflowAirflowGCPSlurmLinux / BashGitCTypeScript

Education

2021–2024

PhD in Computer Science

Université de Technologie de Belfort-Montbéliard (UTBM) — FEMTO-ST

Doctorate carried out at Orange. Thesis: Application of Deep Learning to Indoor Wi-Fi Radio Planning.

2019–2021

MSc, Telecommunications & Network Engineering

France

Graduated with distinction.

2016–2018

Classes préparatoires — Mathematics, Physics, CS

Tétouan, Morocco