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English(EN) Signed random Fourier features for fast density estimation with indefinite kernels

新的SRFF技术加速了对大型数据集的核密度估计

研究人员引入了一种称为有符号随机傅里叶特征(SRFF)的新技术,以解决核密度估计(KDE)的计算限制。传统的KDE方法计算成本高昂,其计算复杂度随数据集大小呈二次方增长,这对于大型数据集来说是不切实际的。虽然随机傅里叶特征(RFF)可以加速KDE,但它们仅限于正定核。SRFF将RFF推广到适用于不定核,将其应用范围扩展到KDE中常用的更广泛的核函数,例如三角核和抛物线核。这一进展使得对大规模数据集进行高效准确的密度估计成为可能。 AI

影响 通过扩展核近似方法,实现了机器学习应用中更快、更具可扩展性的密度估计。

排序理由 该集群包含一篇学术论文,详细介绍了一种用于统计估计的新计算技术。[lever_c_demoted from research: ic=1 ai=0.7]

在 arXiv cs.LG 阅读 →

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新的SRFF技术加速了对大型数据集的核密度估计

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该集群包含一篇学术论文,详细介绍了一种用于统计估计的新计算技术。[lever_c_demoted from research: ic=1 ai=0.7]
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报道来源 [1]

  1. arXiv cs.LG TIER_1 English(EN) · Xie Wang, Nicolas Langren\'e, Wen Chen ·

    用于具有不定核的快速密度估计的签名随机傅里叶特征

    arXiv:2608.29265v1 Announce Type: cross Abstract: Kernel density estimation (KDE) is one of the most fundamental statistical estimators of density functions. Its direct implementation on a dataset of $N$ points incurs an $\mathcal{O}(N^{2})$ computational cost, which is prohibiti…