AI RESEARCH
Preconditioned Flow Matching
arXiv CS.AI
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ArXi:2603.02337v2 Announce Type: replace-cross Flow matching (FM) learns vector fields by regressing stochastic velocity targets along intermediate distributions $p_t$. We identify a geometric optimization bottleneck in this regression problem: when the covariance $\Sigma_t$ of $p_t$ is ill-conditioned, gradient-based