Neural Flow Shortcut Sampler (NFS2) estimates the partition-function derivative with velocity-driven SMC and Stein control variates, and adds a generalized shortcut consistency loss for few-step sampling.
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Neural Flow Samplers with Shortcut Models
Neural Flow Shortcut Sampler (NFS2) estimates the partition-function derivative with velocity-driven SMC and Stein control variates, and adds a generalized shortcut consistency loss for few-step sampling.