Electronic Communications in Probability
- Electron. Commun. Probab.
- Volume 17 (2012), paper no. 51, 12 pp.
Concentration inequalities for order statistics
This note describes non-asymptotic variance and tail bounds for order statistics of samples of independent identically distributed random variables. When the sampling distribution belongs to a maximum domain of attraction, these bounds are checked to be asymptotically tight. When the sampling distribution has a non decreasing hazard rate, we derive an exponential Efron-Stein inequality for order statistics, that is an inequality connecting the logarithmic moment generating function of order statistics with exponential moments of Efron-Stein (jackknife) estimates of variance. This connection is used to derive variance and tail bounds for order statistics of Gaussian samples that are not within the scope of the Gaussian concentration inequality. Proofs are elementary and combine Rényi's representation of order statistics with the entropy approach to concentration of measure popularized by M. Ledoux.
Electron. Commun. Probab., Volume 17 (2012), paper no. 51, 12 pp.
Accepted: 1 November 2012
First available in Project Euclid: 7 June 2016
Permanent link to this document
Digital Object Identifier
Mathematical Reviews number (MathSciNet)
Zentralblatt MATH identifier
Primary: 60E15: Inequalities; stochastic orderings
Secondary: 60F10: Large deviations 60G70: Extreme value theory; extremal processes 62G30: Order statistics; empirical distribution functions 62G32: Statistics of extreme values; tail inference
This work is licensed under a Creative Commons Attribution 3.0 License.
Boucheron, Stéphane; Thomas, Maud. Concentration inequalities for order statistics. Electron. Commun. Probab. 17 (2012), paper no. 51, 12 pp. doi:10.1214/ECP.v17-2210. https://projecteuclid.org/euclid.ecp/1465263184