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stat.ME2025
Gaussian random field's anisotropy using excursion sets
Jean-Marc Azaïs, Federico Dalmao, Yohann De Castro
This paper addresses the problem of detecting and estimating the anisotropy of a stationary real-valued random field from a single realization of one of its excursion sets. This se…
math.ST2025
Effective regions and kernels in continuous sparse regularisation, with application to sketched mixtures
Yohann De Castro, Rémi Gribonval, Nicolas Jouvin
This paper advances the general theory of continuous sparse regularisation on measures with the Beurling-LASSO (BLASSO). This TV-regularised convex program on the space of measures…