Beyond GRPO and On-Policy Distillation: An Empirical Sparse-to-Dense Reward Principle for Language-Model Post-Training
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arXiv
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| Main Authors: | Xu, Yuanda, Sang, Hejian, Zhou, Zhengze, He, Ran, Wang, Zhipeng, Geramifard, Alborz |
|---|---|
| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | |
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