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Han Liu

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2025

VPO: Reasoning Preferences Optimization Based on V-Usable Information

This work proposes VPO, a negative gradient constraint method for human non-preference samples based on V -usable information, which can alleviate the squeezing effect of DPO, enhance alignment with the generation objective, and maintain the model’s ability to distinguish between preference and non-preference samples.

Zecheng Wang, Chunshan Li, Yupeng Zhang et al. · 1 citation