4 papers
Ensemble Transport Filter via Optimized Maximum Mean Discrepancy
Dengfei Zeng, Lijian Jiang
In this paper, we present a new ensemble-based filter method by reconstructing the analysis step of the particle filter through a transport map, which directly transports prior par…
Reinforcement learning based data assimilation for unknown state model
Ziyi Wang, Lijian Jiang
Data assimilation (DA) has increasingly emerged as a critical tool for state estimation across a wide range of applications. It is significantly challenging when the governing equa…
Estimate of Koopman modes and eigenvalues with Kalman Filter
Ningxin Liu, Shuigen Liu, Xin T. Tong +1
Dynamic mode decomposition (DMD) is a data-driven method of extracting spatial-temporal coherent modes from complex systems and providing an equation-free architecture to model and…
Model free data assimilation with Takens embedding
Ziyi Wang, Lijian Jiang
In many practical scenarios, the dynamical system is not available and standard data assimilation methods are not applicable. Our objective is to construct a data-driven model for…