d-TreeRPO uses tree rollouts for fine-grained verifiable rewards and time-scheduled self-distillation to reduce probability estimation gaps in diffusion LLMs, delivering substantial gains on Sudoku, Countdown, GSM8K, and Math500 benchmarks.
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d-TreeRPO: Towards More Reliable Policy Optimization for Diffusion Language Models
d-TreeRPO uses tree rollouts for fine-grained verifiable rewards and time-scheduled self-distillation to reduce probability estimation gaps in diffusion LLMs, delivering substantial gains on Sudoku, Countdown, GSM8K, and Math500 benchmarks.