3 papers
cs.LG2026
Sliced ReLU attention: Quasi-linear contextual expressivity via sorting
François-Xavier Vialard, Siwan Boufadène
We introduce sliced ReLU attention, a new attention mechanism that departs structurally from both softmax and its approximation alternatives. Instead of applying a nonlinearity to…
math.OC2025
Fast Large Deformation Matching with the Energy Distance Kernel
Siwan Boufadene, François-Xavier Vialard, Jean Feydy
We propose an efficient framework for point cloud and measure registration using bi-Lipschitz homeomorphisms, achieving O(n log n) complexity, where n is the number of points. By l…
math.AP2024
On the global convergence of Wasserstein gradient flow of the Coulomb discrepancy
Siwan Boufadène, François-Xavier Vialard
In this work, we study the Wasserstein gradient flow of the Riesz energy defined on the space of probability measures. The Riesz kernels define a quadratic functional on the space…