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20232026
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math.ST2026

Decoupling and randomization for double-indexed permutation statistics

Mingxuan Zou, Jingfan Xu, Peng Ding +1

This paper introduces a version of decoupling and randomization to establish concentration inequalities for double-indexed permutation statistics. The results yield, among other ap…

math.ST2025

Spectral analysis of large dimensional Chatterjee's rank correlation matrix

Zhaorui Dong, Fang Han, Jianfeng Yao

This paper studies the spectral behavior of large dimensional Chatterjee's rank correlation matrix when observations are independent draws from a high-dimensional random vector wit…

math.ST2024

On a rank-based Azadkia-Chatterjee correlation coefficient

Leon Tran, Fang Han

Azadkia and Chatterjee (Azadkia and Chatterjee, 2021) recently introduced a graph-based correlation coefficient that has garnered significant attention. The method relies on a near…

math.ST2024

Limit theorems of matching estimators with a fixed number of matches

Songliang Chen, Fang Han

This paper re-examines the limit theorems of Abadie and Imbens for nearest-neighbor matching estimators of average treatment effects with a fixed number of matches. We establish, f…

math.ST2024

An Introduction to Permutation Processes (version 0.5)

Fang Han

These lecture notes were prepared for a special topics course in the Department of Statistics at the University of Washington, Seattle. They comprise the first eight chapters of a…

math.ST2023

On the adaptation of causal forests to manifold data

Yiyi Huo, Yingying Fan, Fang Han

Researchers often hold the belief that random forests are "the cure to the world's ills" (Bickel, 2010). But how exactly do they achieve this? Focused on the recently introduced ca…