Prediction of Lévy-driven CARMA processes

Prediction of Lévy-driven CARMA processes
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Lévy 驱动的 CARMA 过程的预测

DOI:
10.1016/j.jeconom.2015.03.021
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发表时间:
2015
影响因子:
6.3
通讯作者:
Lindner
Lindner
中科院分区:
经济学2区
文献类型:
--
作者:
Brockwell;Lindner

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条件期望E(Y(h))|Y(u),−∞< u≤ 0)和E(Y(h)|对于连续时间阿尔马(CARMA)过程(Y(t))t∈ R,由Lévy过程L驱动,|L(1)|<∞。如果E(L(1)2)<∞,则这些是分别给定(Y(t))t≤ 0和(Y(t))− M≤ t≤ 0的Y(h)的最小均方误差预报。当Y是因果的且严格平稳的以及L是一个纯跳Lévy过程时,也建立了L的样本路径可以从Y的样本路径恢复的条件。当E(L(1)2)<∞且Y是因果严格平稳时,最佳线性预测P(Y(h))|Y(u),u≤ 0)和P(Y(h)|Y(− n Δ),n∈ N),后者给出了一个确定阿尔马过程参数的简单算法,该算法通过对CARMA过程进行定期采样而获得。
The conditional expectations, E (Y (h)| Y (u),−∞< u≤ 0) and E (Y (h)| Y (u),− M≤ u≤ 0) with h> 0 and 0< M<∞ are determined for a continuous-time ARMA (CARMA) process (Y (t)) t∈ R driven by a Lévy process L with E| L (1)|<∞. If E (L (1) 2)<∞ these are the minimum mean-squared error predictors of Y (h) given (Y (t)) t≤ 0 and (Y (t))− M≤ t≤ 0 respectively. Conditions are also established under which the sample-path of L can be recovered from that of Y, both when Y is causal and strictly stationary and (without these assumptions) when L is a pure-jump Lévy process. When E (L (1) 2)<∞ and Y is causal and strictly stationary the best linear predictors P (Y (h)| Y (u), u≤ 0) and P (Y (h)| Y (− n Δ), n∈ N) are also determined, the latter yielding a simple algorithm for determining the parameters of the ARMA process obtained by sampling the CARMA process at regular intervals.
一类非嵌入式 ARMA 进程
DOI: 10.1111/1467-9892.00151
发表时间: 1999
影响因子: 0.9
作者:
A. Brockwell;P. Brockwell
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固定 Lvy 驱动的 CARMA 过程的存在性和唯一性
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发表时间: 2009
期刊: Journal of the royal statistical society series b-methodological
影响因子: --
作者:
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DOI: 10.1111/j.1467-9892.2011.00748.x
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DOI: 10.1093/biomet/64.2.385
发表时间: 1977
期刊: Biometrika
影响因子: 2.7
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DOI: 10.2307/1426557
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影响因子: 1.2
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