Nonparametric regression for locally stationary functional time series

Autor: Kurisu, Daisuke
Rok vydání: 2021
Předmět:
Druh dokumentu: Working Paper
Popis: In this study, we develop an asymptotic theory of nonparametric regression for a locally stationary functional time series. First, we introduce the notion of a locally stationary functional time series (LSFTS) that takes values in a semi-metric space. Then, we propose a nonparametric model for LSFTS with a regression function that changes smoothly over time. We establish the uniform convergence rates of a class of kernel estimators, the Nadaraya-Watson (NW) estimator of the regression function, and a central limit theorem of the NW estimator.
Comment: 20 pages
Databáze: arXiv