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Quasi-random resampling for the bootstrap
Authors:Kim-Anh Do  Peter Hall
Affiliation:(1) Statistical Sciences Division, Centre for Mathematics and Applications, Australian National University, GPO Box 4, 2601 Canberra, ACT, Australia
Abstract:Quasi-random sequences are known to give efficient numerical integration rules in many Bayesian statistical problems where the posterior distribution can be transformed into periodic functions on then-dimensional hypercube. From this idea we develop a quasi-random approach to the generation of resamples used for Monte Carlo approximations to bootstrap estimates of bias, variance and distribution functions. We demonstrate a major difference between quasi-random bootstrap resamples, which are generated by deterministic algorithms and have no true randomness, and the usual pseudo-random bootstrap resamples generated by the classical bootstrap approach. Various quasi-random approaches are considered and are shown via a simulation study to result in approximants that are competitive in terms of efficiency when compared with other bootstrap Monte Carlo procedures such as balanced and antithetic resampling.
Keywords:Bias  bootstrap  discrepancy  distribution function  equidistribution  good lattice points  Monte Carlo simulation  pseudo-random  quasi-random  regular and irregular sequences
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