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Sponsored AI Networking Cookbook: Practical recipes for AI-assisted network automation and development AI Networking Cookbook: Practical recipes for AI-assisted network automation and development

Author

Eric Zhu

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Jul 2026

Selective Timestep Weighting and Advantage-Based Replay for Sample-Efficient Diffusion RLHF

This paper introduces a per-timestep weighting scheme that reweights denoising steps during policy optimization and introduces a replay mechanism that prioritizes informative trajectories, enabling the model to reuse past samples instead of repeatedly querying new rewards.

Eric Zhu, Abhinav Shrivastava, Soumik Mukhopadhyay · 0 citations

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