Author

Riccardo Piombo

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Preprint Sep 2026

An exact and fast solution of the inverse Regularized Optimal Transport problem

Optimal transport describes the most efficient way to move mass between two distributions, given a cost matrix for moving mass between each pair of locations. Entropic optimal transport, solved via the Sinkhorn algorithm, is a widely used regularized version of this problem. Its inverse problem asks the opposite questi...

Dario Mazzilli, Riccardo Piombo, Lorenzo Buffa et al. · 0 citations

Preprint Aug 2026

Information-theoretic formulation of the Traveling Salesman Problem

This paper proposes a general approach for handling hard constraints while reducing hard combinatorial optimization problems to simpler ones, and derives a mean-field approximation in terms of edge occupancies and implement a differentiable cycle penalty that suppresses sub-tours.

Enrico Maria Fenoaltea, Riccardo Piombo, A. Patelli · 0 citations