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Ferdinando Fioretto

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#artificial intelligence Preprint Sep 2026

Posterior Flow Matching

Flow matching learns how to transport noise toward data, but its mean prediction does not directly report the endpoint uncertainty remaining at an intermediate state. This paper introduces Posterior Flow Matching (PFM), a general generative modeling framework that learns conditional velocity means and componentwise var...

Chen-Rui Ma, Xi Xiao, Lin Zhao et al. · 0 citations
#machine learning Preprint Aug 2026

Learning Discrete Decisions for MIPs with Constraint-Aware Diffusion

Constrained Graph Diffusion, a graph-based generative diffusion model that learns the discrete component of mixed-integer optimization problems while integrating a training-free feasibility projection operator directly into the reverse diffusion process to steer intermediate samples toward the feasible set throughout g...

Vincenzo Di Vito, Mehdi Taghizadeh, Deepjyoti Deka et al. · 0 citations

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