高维多变量 Kendall-$\tau$ 的极限谱分布
统计理论
2025-11-25 v3 概率论
统计理论
摘要
多变量 Kendall- 统计量记为 , 在稳健统计分析中发挥重要作用。本文建立了 经验谱分布(ESD)的极限性质。我们证明了 的 ESD几乎必然收敛于 Mar\v{c}enko--Pastur 定律,其方差参数为 , 这类似于经典样本协方差矩阵的结果。Using Stieltjes transform techniques, we extend these results to the independent component model, deriving a fixed-point equation that characterizes the limiting spectral distribution of . The theoretical findings are validated through comprehensive simulation studies.
引用
@article{arxiv.2510.21077,
title = {Limiting Spectral Distribution of High-dimensional Multivariate Kendall-$\tau$},
author = {Ruoyu Wu},
journal= {arXiv preprint arXiv:2510.21077},
year = {2025}
}