Reposted by Lukas Billera
But when we looked, we couldn't find a sufficiently general justification.
So our preprint, driven by @lukasbillera.bsky.social with assists from @hedwignordlinder.bsky.social, formalizes this, and extends it a little in ways that are trickier to heuristically reason about:
arxiv.org/abs/2511.16599
arxiv.org
Time dependent loss reweighting for flow matching and diffusion models is theoretically justified
This brief note clarifies that, in Generator Matching (which subsumes a large family of flow matching and diffusion models over continuous, manifold, and discrete spaces), both the Bregman divergence ...
