State-domain change point detection for nonlinear time series regression
非线性时间序列回归的状态域变点检测AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确研究非线性时间序列回归的变点检测,变化发生于状态域,直接对应时间序列与结构变化方法。
非线性时间序列回归的状态域变点检测AI 解读 ↓
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Change point detection in time series has attracted substantial interest, but most of the existing results have been focused on detecting change points in the time domain. This paper considers the situation where nonlinear time series have potential change points in the state domain. We apply a density-weighted anti-symmetric kernel function to the state domain and therefore propose a nonparametric procedure to test the existence of change points. When the existence of change points is affirmative, we further introduce an algorithm to estimate the number of change points together with their locations. Theoretical results of the proposed detection and estimation procedures are given and a real dataset is used to illustrate our methods.