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- W4282959768 abstract "Abstract We propose an affine-mapping based variational Ensemble Kalman filter for sequential Bayesian filtering problems with generic observation models. Specifically, the proposed method is formulated as to construct an affine mapping from the prior ensemble to the posterior one, and the affine mapping is computed via a variational Bayesian formulation, i.e., by minimizing the Kullback-Leibler divergence between the transformed distribution through the affine mapping and the actual posterior. Some theoretical properties of resulting optimization problem are studied and a gradient descent scheme is proposed to solve the resulting optimization problem. With numerical examples we demonstrate that the method has competitive performance against existing methods. Mathematics Subject Classification (2000) 65C05 · 62F15" @default.
- W4282959768 created "2022-06-17" @default.
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- W4282959768 date "2022-06-15" @default.
- W4282959768 modified "2023-09-28" @default.
- W4282959768 title "Affine-Mapping based Variational Ensemble Kalman Filter" @default.
- W4282959768 doi "https://doi.org/10.21203/rs.3.rs-1729504/v1" @default.
- W4282959768 hasPublicationYear "2022" @default.
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