LPSR raises 8B-model accuracy on MATH-500 from 28.8% to 44.0% by detecting error-indicating phase shifts in the residual stream and correcting via KV-cache rollback plus steering vectors, outperforming prompted self-correction and even a 70B model.
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Latent Phase-Shift Rollback: Inference-Time Error Correction via Residual Stream Monitoring and KV-Cache Steering
LPSR raises 8B-model accuracy on MATH-500 from 28.8% to 44.0% by detecting error-indicating phase shifts in the residual stream and correcting via KV-cache rollback plus steering vectors, outperforming prompted self-correction and even a 70B model.