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- W50268494 abstract "This paper develops particle-based methods for sequential inference in nonlinear models. Sequential inference is notoriously difficult in nonlinear state space models. To overcome this, we use auxiliary state variables to slice out nonlinearities where appropriate. This induces a Fixed-dimension conditional sufficient statistics and, given these, we adapt existing particle learning algorithms to update posterior beliefs about states and parameters. We provide three illustrations. First, a dynamic exponential model with Gaussian errors. Second, a stochastic growth model with nonlinear state evolution and t-distributed errors. Finally, a bivariate radar tracking problem which was originally analyzed in the nonlinear Monte Carlo Filtering literature. In all cases, we illustrate the efficiency of our methodology." @default.
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- W50268494 date "2009-01-01" @default.
- W50268494 modified "2023-09-25" @default.
- W50268494 title "Sequential Inference for Nonlinear Models using Slice Variables" @default.
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- W50268494 doi "https://doi.org/10.2139/ssrn.1509782" @default.
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