Etienne Lasalle

Research

My research focuses on statistics related to graph-structured data. During my thesis, I developed and studied tools for multi-scale graph comparisons as well as statistical comparisons of graphs samples, with applications in neural networks learning.
More recently, my work lies into the filed of signal processing. I have study various aspects of graph data compression. I also exploit graph structures for applications in epidemiology and neuroscience

Articles

Joint reproduction number and spatial connectivity structure estimation via graph sparsity-promoting penalized functional, 2025.
With B. Pascal
[HAL] [arxiv]
A multilevel approach to accelerate the training of Transformers, 2025.
With G. Lauga, M. Chaumette, E. Desainte-Maréville and A. Lebeurrier
Accepted at GRETSI 2025.
[HAL]
A note on the relations between mixture models, maximum-likelihood and entropic optimal transport, 2025.
With T. Vayer
[arxiv]
PASCO (PArallel Structured COarsening): an overlay to speed up graph clustering algorithms, 2024.
With R. Vaudaine, T. Vayer, P. Borgnat, R. Gribonval, P. Gonçalves, M. Karsai
Accepted at ECML 2025 (Journal Track) and published in Machine Learning.
[Journal] [arxiv]
Compressive Recovery of Sparse Precision Matrices, 2023.
With T. Vayer, R. Gribonval, P. Gonçalves
[arxiv]
Eve, Adam and the Preferential Attachment Tree, 2023.
With A. Contat, N. Curien, P. Lacroix and V. Rivoirard
Published in Probability Theory and Related Fields.
[journal] [arxiv]
Heat diffusion distance processes: a statistically founded method to analyze graph data sets, 2023.
Published in J Appl. and Comput. Topology (SI : Data Science on Graphs).
[journal] [arxiv]

Talks

Material

Others

Editorial activities

Awards