Etienne Lasalle

Postdoctoral fellow - Applied Mathematics LS2N (SIMS team), Nantes, France
E-mail : etienne.lasalle"at"ls2n.fr Office : 311, S building, Centrale Nantes Campus
Former PhD student at LMO (proba-stats) and Inria (Datashape). PhD Advisors : Frédéric Chazal and Pascal Massart.

Research Interests

• Graph data
• Signal processing on graphs
• Data compression, dimensionality reduction, sketching
• Statistical testing (two-sample tests, multi-tests)
• Shift detection, anomaly detection
• Topological data analysis (TDA)

News

• January, 2026 - Our paper Joint reproduction number and spatial connectivity structure estimation via graph sparsity-promoting penalized functional got accepted at ICASSP 2026.
• December, 2025 - I obtained a postdoc funding (March 2026 to Septembre 2026) from LS2N.
• December, 2025 - Our preprint Topological Spatial Graph Coarsening is out. Check it out here.