Papers by Pinyan Lu
SHAPE: Stage-aware Hierarchical Advantage via Potential Estimation for LLM Reasoning (2026.acl-long)
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| Challenge: | Existing methods for process supervision fail to distinguish meaningful progress from mere verbosity . existing methods lack a coherent approach to process supervision . |
| Approach: | They propose a framework that formalizes reasoning as a trajectory through a state space of empirical solvability. |
| Outcome: | The proposed framework achieves an average accuracy gain of 3% with 30% reduced token consumption. |