CoT reasoning exhibits a two-phase entropy structure with a detectable confidence region that enables CUSUM-based early exit achieving 63.06% accuracy at 11.1% token reduction and better test-time scaling than self-consistency.
11 Unveiling the Entropy Dynamics of Chain-of-Thought Reasoning Page, E
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Unveiling the Entropy Dynamics of Chain-of-Thought Reasoning
CoT reasoning exhibits a two-phase entropy structure with a detectable confidence region that enables CUSUM-based early exit achieving 63.06% accuracy at 11.1% token reduction and better test-time scaling than self-consistency.