Bootstrap prediction inference of nonlinear autoregressive models

We construct bootstrap prediction intervals in the multi-step ahead prediction problem with parametric model estimator; in particular, we develop an asymptotically valid quantile prediction interval as well as a pertinent prediction interval for future values. To correct the undercoverage of prediction intervals with finite samples, we further employ predictive—as opposed to fitted—residuals in the bootstrap process.

April 2024 · Kejin Wu, Dimitris Politis

Multi-Step-Ahead prediction intervals for nonparametric autoregressions via Bootstrap: consistency, debiasing, and pertinence

We consider a forward bootstrap approach with non-parametric model estimator to resolve the difficulty on predicting multi-step ahead time series data. We construct a quantile prediction interval that is asymptotically valid. Moreover, after taking a debiasing technique, we can build pertinent prediction intervals in which the estimation variability is captured. (This is my first paper with my advisor Professor Politis. Thanks for his guidance!)

August 2023 · Dimitris Politis, Kejin Wu