Concentration inequalities via zero bias couplings
Abstract
The tails of the distribution of a mean zero, variance random variable satisfy concentration of measure inequalities of the form for B(t)=\frac{t^2}{2( \sigma^2 + ct)} \quad \mbox{for $t \ge 0$, and} \quad B(t)=\frac{t}{c}\left( \log t - \log \log t - \frac{\sigma^2}{c}\right) \quad \mbox{for $t>e$} whenever there exists a zero biased coupling of bounded by , under suitable conditions on the existence of the moment generating function of . These inequalities apply in cases where is not a function of independent variables, such as for the Hoeffding statistic where and the permutation has the uniform distribution over the symmetric group, and when its distribution is constant on cycle type.
Cite
@article{arxiv.1304.5001,
title = {Concentration inequalities via zero bias couplings},
author = {Larry Goldstein and Umit Islak},
journal= {arXiv preprint arXiv:1304.5001},
year = {2014}
}
Comments
11 pages, presentation revised, shortened by referencing existing constructions