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News/Rooted Absorbed Prefix Trajectory Balance with Submodular Replay for GFlowNet Training
arxiv
PublishedMay 29, 2026 at 4:00 AM
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Rooted Absorbed Prefix Trajectory Balance with Submodular Replay for GFlowNet Training

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arXiv:2603.00454v2 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. We attribute this to two fact

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