Author

Bowen Zhou

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Preprint Sep 2026

Unified Trajectory Matching Policy Optimization: Diverse T2I Generation and VLA Generalization

Reward-maximizing reinforcement learning (RL) is widely used to post-train stochastic diffusion and flow policies for text-to-image (T2I) generation. However, reward-maximizing RL causes policy mode collapse even under reference KL or entropy regularization, reducing the policy to a single high-reward mode. In T2I, thi...

Zhi-Yuan Ma, Jia-Ming Li, Ling-Zhen Li et al. · 0 citations

Preprint Aug 2026

DynaPPI: A Large-scale Dynamic Protein Dataset for AI-driven Advances in Protein Interactomics

DynaPPI, a dynamic protein dataset comprising molecular dynamics trajectories of protein complex formation from dissociated chains to the bound state, is presented as a pivotal resource to bridge the gap between static structural biology and the inherently temporal nature of dynamic molecular interactions.

Jia-Bao Wei, Zilong Geng, Yuze Wang et al. · 0 citations