Robust Max Statistics for High-Dimensional Inference
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866911334001541120 |
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| author | Liu, Mingshuo Lopes, Miles E. |
| author_facet | Liu, Mingshuo Lopes, Miles E. |
| contents | Although much progress has been made in the theory and application of bootstrap approximations for max statistics in high dimensions, the literature has largely been restricted to cases involving light-tailed data. To address this issue, we propose an approach to inference based on robust max statistics, and we show that their distributions can be accurately approximated via bootstrapping when the data are both high-dimensional and heavy-tailed. In particular, the data are assumed to satisfy an extended version of the well-established $L^{4}$-$L^2$ moment equivalence condition, as well as a weak variance decay condition. In this setting, we show that near-parametric rates of bootstrap approximation can be achieved in the Kolmogorov metric, independently of the data dimension. Moreover, this theoretical result is complemented by encouraging empirical results involving both Euclidean and functional data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_16683 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Robust Max Statistics for High-Dimensional Inference Liu, Mingshuo Lopes, Miles E. Methodology Statistics Theory Although much progress has been made in the theory and application of bootstrap approximations for max statistics in high dimensions, the literature has largely been restricted to cases involving light-tailed data. To address this issue, we propose an approach to inference based on robust max statistics, and we show that their distributions can be accurately approximated via bootstrapping when the data are both high-dimensional and heavy-tailed. In particular, the data are assumed to satisfy an extended version of the well-established $L^{4}$-$L^2$ moment equivalence condition, as well as a weak variance decay condition. In this setting, we show that near-parametric rates of bootstrap approximation can be achieved in the Kolmogorov metric, independently of the data dimension. Moreover, this theoretical result is complemented by encouraging empirical results involving both Euclidean and functional data. |
| title | Robust Max Statistics for High-Dimensional Inference |
| topic | Methodology Statistics Theory |
| url | https://arxiv.org/abs/2409.16683 |