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English(EN) Exact Risk Ratios for Weighted Data Selection in Linear Regression

研究人员解决了线性回归中加权数据选择的开放性问题

研究人员 HannekeMoranShlimovichYehudayoff 在 $d < n < 2d$ 的开放区域内,确定了线性回归中加权数据选择的精确风险比。他们证明了 $F_w(d, 2d-1) = 1 + 1/d$,证实了之前的说法,并找到了 $F_w(3,4) = 5/3$ 和 $F_w(4,5) = 2$ 的精确值。该研究为 $F_w(d, d+k) less 1 + ext{HarmonicQuantity}(d,k)$ 提供了下界,并推测该下界是具有白化梯度系统中电路-块结构的最小二乘数据集的极小极大值。证明利用了几何论证,包括刚性定理和正基的分类。 AI

影响 为线性回归中的数据选择提供了理论进展,可能影响未来的算法开发。

排序理由 学术论文,详细介绍了数学证明和机器学习中开放性问题的解决方案。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

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研究人员解决了线性回归中加权数据选择的开放性问题

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学术论文,详细介绍了数学证明和机器学习中开放性问题的解决方案。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv cs.LG TIER_1 English(EN) · Guangjian Zhang ·

    线性回归中加权数据选择的精确风险比率

    arXiv:2608.28007v1 Announce Type: new Abstract: Hanneke, Moran, Shlimovich and Yehudayoff (COLT 2025) posed the following open problem. A selector sees a finite dataset $D \subseteq \mathbb{R}^d \times \mathbb{R}$, picks at most $n$ examples together with nonnegative weights, and…