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English(EN) Stochastic gradient descent with initial regularization

新的SGDIR分析产生了无量纲风险界限

研究人员分析了一种带初始正则化的随机梯度下降(SGDIR)变体,为其平方损失的期望超额风险推导出了无量纲上限。在无噪声情况下,研究人员在各种假设下为平均和非平均SGDIR建立了新的界限,其中一些界限达到了 $m^{-3+\epsilon}$ 的阶数。该研究还提出了一个在特定情况下与上限非常接近的下限,并在有噪声条件下包含了SGDIR与岭回归之间的基于实例的比较,表明SGDIR的风险具有可比性。在合成数据和真实数据上的数值实验都支持这些理论发现。 AI

影响 为与机器学习模型训练相关的优化算法提供了理论见解。

排序理由 该集群包含一篇详细介绍新算法理论分析的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]

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新的SGDIR分析产生了无量纲风险界限

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报道来源 [1]

  1. arXiv stat.ML TIER_1 English(EN) · Nabil Kahal\'e ·

    带初始正则化的随机梯度下降

    arXiv:2608.22953v1 Announce Type: cross Abstract: We analyze a variant of stochastic gradient descent with initial regularization (SGDIR) and derive dimension-free upper bounds on its expected excess risk for the squared loss. In the noiseless case, we obtain new bounds for both …