Nonparametric Testing under Random Projection
Statistics Theory
2018-02-20 v1 Methodology
Machine Learning
Statistics Theory
Abstract
A common challenge in nonparametric inference is its high computational complexity when data volume is large. In this paper, we develop computationally efficient nonparametric testing by employing a random projection strategy. In the specific kernel ridge regression setup, a simple distance-based test statistic is proposed. Notably, we derive the minimum number of random projections that is sufficient for achieving testing optimality in terms of the minimax rate. An adaptive testing procedure is further established without prior knowledge of regularity. One technical contribution is to establish upper bounds for a range of tail sums of empirical kernel eigenvalues. Simulations and real data analysis are conducted to support our theory.
Cite
@article{arxiv.1802.06308,
title = {Nonparametric Testing under Random Projection},
author = {Meimei Liu and Zuofeng Shang and Guang Cheng},
journal= {arXiv preprint arXiv:1802.06308},
year = {2018}
}