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σTransfer:μP下不确定性从小网络迁移到大网络

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2026年10月9日,arXiv(Statistics Machine Learning)发表一手论文,提出σTransfer方法。该方法在Maximal Update Parametrization(μP)框架下推导出先验协方差的缩放规则,使选定的先验精度随模型宽度增大保持稳定。基于该规则,研究者可在小模型上选定精度并零样本迁移到大模型,无需在大模型上重新搜索。这是该事件目前唯一的报道,尚无后续验证或独立复现信息。

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Oct 9, 2026
  1. arXiv · Statistics Machine Learning
    σTransfer:在 μP 下将不确定性从小网络迁移到大网络

    论文提出 σTransfer,在 Maximal Update Parametrization(μP)下推导出先验协方差的缩放规则,使选定先验精度随模型宽度增大保持稳定,从而可在小模型上选定精度并零样本迁移到大模型,无需在大模型上重新搜索。

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