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English(EN) The Phase Transition in Online PCA Depends on $n/d\log(d)$, not $n/d$

在线PCA相变依赖于 n/d log(d),而非 n/d

研究人员已确定在线主成分分析(PCA)算法(特别是Oja算法)的关键阈值。与依赖样本与维度之比($n/d$)的传统PCA不同,在线PCA的相变由一个更复杂的比率决定,该比率涉及维度的对数($n/d imes ext{log}(d)$)。这一发现表明,与批量算法相比,流式算法需要更高的样本与维度比率才能获得准确的结果。 AI

影响 阐明了在线学习算法的理论极限,可能影响AI系统中的实时数据分析。

排序理由 详细介绍统计机器学习理论发现的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv stat.ML 阅读 →

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在线PCA相变依赖于 n/d log(d),而非 n/d

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详细介绍统计机器学习理论发现的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv stat.ML TIER_1 English(EN) · Apratim Dey ·

    在线PCA的相变取决于 $n/d\log(d)$,而非 $n/d$

    arXiv:2607.23914v1 Announce Type: cross Abstract: High dimensional statistical theory has established the importance of constant aspect ratio, when the number of dimensions ($d$) and samples ($n$) satisfy $n,d\to\infty$ with $n/d\to \gamma\in(0,\infty)$, in understanding the limi…