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Author

Giacomo Zanella

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#machine learning Preprint Sep 2026

Schedule optimization for tau-leaping in masked discrete diffusion

Masked discrete diffusion models are commonly accelerated using the so-called tau-leaping discretization method, which reveals several coordinates in parallel at each sampling step. The sampler replaces the joint conditional law of each revealed block by a product distribution, incurring a factorization error $\varepsi...

C. Secchi, Giacomo Zanella · 0 citations
Preprint Aug 2026

Hamiltonian dynamics for sampling on discrete spaces

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 and does not require a continuous embedding of the discrete state space. We establish conditions for invariance of the target distribution an...

Raphael Barboni, Sebastiano Grazzi, Giacomo Zanella · 0 citations

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