An ensemble of expert diffusion models trained in isolation on disjoint data clusters, combined by a learned router, matches the global flow-matching objective and outperforms a monolithic model at equal FLOPs.
Pixart- α: Fast training of diffusion transformer for photorealistic text-to-image synthe- sis, 2023
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Decentralized Diffusion Models
An ensemble of expert diffusion models trained in isolation on disjoint data clusters, combined by a learned router, matches the global flow-matching objective and outperforms a monolithic model at equal FLOPs.