arXiv AI By Xi Wang, Wenbo Lu, Shengjie Wang

Rooted Absorbed Prefix Trajectory Balance with Submodular Replay for GFlowNet Training

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arXiv:2603. 00454v3 Announce Type: replace-cross Abstract: Generative Flow Networks (GFlowNets) enable fine-tuning large language models to approximate reward-proportional posteriors, but they remain prone to mode collapse, manifesting as prefix collapse and length bias.

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