# Uniformly Valid Post-Regularization Confidence Regions for Many Functional Parameters in Z-Estimation Framework

arXiv: https://arxiv.org/abs/1512.07619 · HTML: https://mlsanity.com/paper/1512.07619/

## Key facts

- Cited by 12 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 23 Dec 2015.

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## Abstract (arXiv)

In this paper we develop procedures to construct simultaneous confidence bands for tilde p potentially infinite-dimensional parameters after model selection for general moment condition models where tilde p is potentially much larger than the sample size of available data, n. This allows us to cover settings with functional response data where each of the tilde p parameters is a function. The procedure is based on the construction of score functions that satisfy certain orthogonality condition. The proposed simultaneous confidence bands rely on uniform central limit theorems for high-dimensional vectors (and not on Donsker arguments as we allow for tilde p gg n). To construct the bands, we employ a multiplier bootstrap procedure which is computationally efficient as it only involves resampling the estimated score functions (and does not require resolving the high-dimensional optimization problems). We formally apply the general theory to inference on regression coefficient process in the distribution regression model with a logistic link, where two implementations are analyzed in detail. Simulations and an application to real data are provided to help illustrate the applicability of the results.