High-resolution product quantization for Gaussian processes under sup-norm distortion

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Abstract

We derive high-resolution upper bounds for optimal product quantization of pathwise continuous Gaussian processes with respect to the supremum norm on [0, T]d. Moreover, we describe a product quantization design which attains this bound. This is achieved under very general assumptions on random series expansions of the process. It turns out that product quantization is asymptotically only slightly worse than optimal functional quantization. The results are applied to fractional Brownian sheets and the Ornstein-Uhlenbeck process. © 2007 ISI/BS.

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APA

Luschgy, H., & Pagès, G. (2007). High-resolution product quantization for Gaussian processes under sup-norm distortion. Bernoulli, 13(3), 653–671. https://doi.org/10.3150/07-BEJ6025

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