Kernel learning backward SDE filter for data assimilation

Kernel learning backward SDE filter for data assimilation
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用于数据同化的内核学习向后 SDE 滤波器

DOI:
10.1016/j.jcp.2022.111009
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发表时间:
2022
影响因子:
4.1
通讯作者:
Bao, Feng
Bao, Feng
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Archibald, Richard;Bao, Feng

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相似文献

本文提出了一种核学习后向SDE滤波方法,利用随机动力系统的部分噪声观测值估计系统的状态。利用正向倒向随机微分方程系统来传播目标动力学模型的状态,并利用贝叶斯推理来整合观测信息。为了在整个状态空间中表征动态模型,我们引入核学习方法,以离散的近似密度值作为训练数据,学习目标状态的条件概率密度函数的连续全局逼近。数值实验证明了该算法的有效性。
In this paper, we develop a kernel learning backward SDE filter method to estimate the state of a stochastic dynamical system based on its partial noisy observations. A system of forward backward stochastic differential equations is used to propagate the state of the target dynamical model, and Bayesian inference is applied to incorporate the observational information. To characterize the dynamical model in the entire state space, we introduce a kernel learning method to learn a continuous global approximation for the conditional probability density function of the target state by using discrete approximated density values as training data. Numerical experiments demonstrate that the kernel learning backward SDE is highly effective.
DOI: 10.1016/j.actamat.2020.116508
发表时间: 2021
期刊: Acta Materialia
影响因子: 9.4
作者:
O. Dyck;M. Ziatdinov;S. Jesse;F. Bao;A. Nobakht;A. Maksov;B. Sumpter;R. Archibald;K. Law;Sergei V. Kalinin
通讯作者: O. Dyck;M. Ziatdinov;S. Jesse;F. Bao;A. Nobakht;A. Maksov;B. Sumpter;R. Archibald;K. Law;Sergei V. Kalinin
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影响因子: --
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资料同化
DOI: 10.11499/sicejl.56.656
发表时间: 2017
期刊: Journal of The Society of Instrument and Control Engineers
影响因子: --
作者:
河本高文;二木厚吉;吉岡 信和;福元 豊,大塚 悟;上野 玄太
通讯作者: 上野 玄太