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AREX: Affine-Residual Exponential Integrator for Few-Step Sampling in Flow Matching

arXiv:2610.03483v1 Announce Type: new Abstract: We introduce AREX, a training-free sampler for pretrained flow matching models that uses the target mean and covariance to capture an analytically tractable part of the sampling dynamics. We show that the velocity field of the moment-matched Gaussian…

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  1. 2026-10-05 04:00 · arXiv stat.ML
    AREX: Affine-Residual Exponential Integrator for Few-Step Sampling in Flow Matching

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