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arXiv 1111.2205math.STstat.TH
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高斯片驱动的线性回归中的参数估计

Parameter estimation in linear regression driven by a Gaussian sheet

Sándor Baran, Kinga Sikolya

摘要:

考虑了基于$Z$在空间域$G$上的观测值的线性回归模型$Z(s,t)=m_1g_1(s,t)+ \cdots + m_pg_p(s,t)+U(s,t)$的参数估计问题,其中驱动过程$U$是高斯随机场,$g_1, \ldots, g_p$是已知函数.当$U$是Wiener或平稳或非平稳的Ornstein-Uhlenbeck单时,导出了参数的极大似然估计的显式形式.模拟结果也被提出,其中的驱动随机片模拟的帮助下,他们的Karhunen-Loève展开。

英文摘要:

The problem of estimating the parameters of a linear regression model $Z(s,t)=m_1g_1(s,t)+ \cdots + m_pg_p(s,t)+U(s,t)$ based on observations of $Z$ on a spatial domain $G$ of special shape is considered, where the driving process $U$ is a Gaussian random field and $g_1, \ldots, g_p$ are known functions. Explicit forms of the maximum likelihood estimators of the parameters are derived in the cases when $U$ is either a Wiener or a stationary or nonstationary Ornstein-Uhlenbeck sheet. Simulation results are also presented, where the driving random sheets are simulated with the help of their Karhunen-Loève expansions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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