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Shreshth Saini

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#machine learning Preprint Oct 2026

MEND: RL For Flow Models via Proximal Velocity Matching

Reward post-training of flow models either reweights the model's own samples under a KL penalty or a frozen reference, often for thousands of updates, or backpropagates the reward and moves every sample without checking that the move is worth its size. We introduce MEND, a reinforcement learning method built on proxima...

Shreshth Saini, N. Birkbeck, Yi-Lin Wang et al. · 0 citations
#artificial intelligence Preprint Oct 2026

JLD: Perceptual Distance Through A Jacobian Lens

Image compression, restoration, and generation all require a way to measure how different two images look to a person. Pixel error ignores how people see, while the most accurate perceptual distances are typically fitted to human judgments, tying them to a fixed data and resolution. For example, when image resolution i...

Shreshth Saini, Balu Adsumilli, Alan C. Bovik · 0 citations

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