ETR is a trajectory-aware reward that promotes progressive entropy reduction during CoT reasoning, integrated into GRPO to deliver higher accuracy and 67% shorter traces on tested models and benchmarks.
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ETR: Entropy Trend Reward for Efficient Chain-of-Thought Reasoning
ETR is a trajectory-aware reward that promotes progressive entropy reduction during CoT reasoning, integrated into GRPO to deliver higher accuracy and 67% shorter traces on tested models and benchmarks.