F. Grivet and L. Travé-Massuyès, Cost trade-offs in matrix
inversion updates for streaming outlier detection. Array
(2026), doi:
https://doi.org/10.1016/j.array.2026.100737.
F. Grivet, L. Travé-Massuyès, D. Henrion, J.-B. Lasserre, L.
Vintenat, and C. Hinderer, Christoffel Function based Anomaly
Detection for Satellite Telemetry. ANITI Days 2026, Feb 2026,
Toulouse, France.(hal-05521204).
Topic:
Christoffel Function based Anomaly Detection for Satellite
Telemetry.
Supervisor: Louise Travé-Massuyès. Co-supervisor: Didier
Henrion.
Advisor: Jean-Bernard Lasserre. Industry advisors: Lionel
Vintenat and Clément Hinderer.
Apprenticeship under the supervision of Lionel Vintenat.
• Improvement of a tool for detecting univariate anomalies in
satellite telemetry based on a OCSVM (IHM, performances, large
scale deployment).
• Development and integration of a detection method that takes
user feedback into account: semi-supervised OCSVM.
• Development of a multivariate anomaly detection algorithm
using a CNN autoencoder and an OCSVM with algorithm
explainability.
Double degree through work-study program.
• INSA degree specializing in
Applied Mathematics.
• INP-ENSEEIHT degree specializing in
Computer Science and Telecommunications
• Set up the new management and billing system
• Ensure compliance and consistency between the database
(Excel), the new management system (Mytem), and the operator
portals (Orange, SFR, Bouygues Telecom)
Integrated preparatory course followed by specialization in the third year in Computer Modeling and Communication (MIC)