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math.ST2026
Schedule optimization for tau-leaping in masked discrete diffusion
Cecilia Secchi, Giacomo Zanella
Masked diffusions are popular generative models for discrete distributions. Unlike standard autoregressive sampling, they reveal several coordinates in parallel, approximating each…
math.ST2026
Hamiltonian dynamics for sampling on discrete spaces
Raphaël Barboni, Sebastiano Grazzi, Giacomo Zanella
We develop a general class of non-reversible Hamiltonian Monte Carlo dynamics on discrete state spaces. The method augments the discrete state with a continuous momentum variable a…