The conditional distance autocovariance function
The conditional distance autocovariance function
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条件距离自协方差函数
DOI:
10.1002/cjs.11610
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发表时间:
2021-03
期刊:
影响因子:
--
通讯作者:
Wang Xueqin
中科院分区:
文献类型:
--
作者:
Zhang Qiang;Pan Wenliang;Li Chengwei;Wang Xueqin
The partial autocorrelation function (PACF) is often used in time series analysis to identify the extent of the lag in an autoregressive model. However, the PACF is only suitable for detecting linear correlations. This article proposes the conditional distance autocovariance function (CDACF), which is zero if and only if measured time series components are conditionally independent. Due to the lack of this property, traditional tools for measuring partial correlations such as the PACF cannot work well for nonlinear sequences. Based on the CDACF, we introduce a tool known as an integrated conditional distance autocovariance function (ICDACF), which can test conditional temporal dependence structures of a sequence and estimate the order of an autoregressive process. Simulation studies reveal that the ICDACF can detect the conditional dependence of nonlinear autoregressive models efficiently while controlling for type‐I error rates. Finally, an analysis of a Bitcoin price dataset using the ICDACF demonstrates that our method has considerable advantages over other state‐of‐the‐art methods.
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影响因子:
3
作者:
Daniel B. Nelson;C. Cao
通讯作者:
Daniel B. Nelson;C. Cao
DOI:
10.2307/1533949
发表时间:
1990
期刊:
--
影响因子:
--
作者:
H. Tong
通讯作者:
H. Tong
DOI:
10.1080/01621459.2000.10474284
发表时间:
2000-09
影响因子:
3.7
作者:
Z. Cai;Jianqing Fan;Q. Yao
通讯作者:
Z. Cai;Jianqing Fan;Q. Yao
DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
通讯作者:
--
影响因子:
3.7
作者:
Cai, ZW;Fan, JQ;Yao, QW
通讯作者:
Yao, QW