Title
The consistency and asymptotic normality of the kernel type expectile regression estimator for functional data
Abstract
The aim of this paper is to nonparametrically estimate the expectile regression in the case of a functional predictor and a scalar response. More precisely, we construct a kernel-type estimator of the expectile regression function. The main contribution of this study is the establishment of the asymptotic properties of the expectile regression estimator. Precisely, we establish the almost complete convergence with rate. Furthermore, we obtain the asymptotic normality of the proposed estimator under some mild conditions. We provide how to apply our results to construct the confidence intervals. The case of functional predictor is of particular interest and challenge, both from theoretical as well as practical point of view. We discuss the potential impacts of functional expectile regression in NFDA with a particular focus on the supervised classification, prediction and financial risk analysis problems. Finally, the finite-sample performances of the model and the estimation method are illustrated using the analysis of simulated data and real data coming from the financial risk analysis.
Year
DOI
Venue
2021
10.1016/j.jmva.2020.104673
Journal of Multivariate Analysis
Keywords
DocType
Volume
62G08,62E20,62F12,62G10,62G20,62M10
Journal
181
ISSN
Citations 
PageRank 
0047-259X
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Mustapha Mohammedi100.34
Salim Bouzebda211.10
Ali Laksaci3112.08