Author

Xiao-Chuang Han

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Preprint Sep 2026

ExploreNet: Learning Where to Explore in Diffusion GRPO

Group-relative RL methods such as Flow-GRPO post-train image generators by exploring with isotropic Gaussian noise added at every denoising step. This noise decides which rollouts the model learns from, yet it perturbs every channel and spatial position of the latent equally. In this paper, we instead show that latent...

S. Li, Xiao-Chuang Han, Y. Tsvetkov et al. · 0 citations

Preprint Sep 2026

OmniTaskonomy: When Does Visual Generation Improve Visual Understanding?

Training a model to generate visual content can encourage it to learn rich perceptual capabilities related to geometry, spatial relationships, and objectness; yet, its benefits for visual understanding remain unclear. We ask: when and how does visual generation supervision improve visual understanding? We study control...

Jia-Xin Ge, Yi-Ming Qin, Ji Xie et al. · 0 citations