Particle Learning and Smoothing
Particle Learning and Smoothing
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DOI:
10.1214/10-sts325
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发表时间:
2010-02-01
影响因子:
5.7
通讯作者:
Polson, Nicholas G.
中科院分区:
文献类型:
--
作者:
Carvalho, Carlos M.;Johannes, Michael S.;Polson, Nicholas G.
Particle learning (PL) provides state filtering, sequential parameter learning and smoothing in a general class of state space models. Our approach extends existing particle methods by incorporating the estimation of static parameters via a fully-adapted filter that utilizes conditional sufficient statistics for parameters and/or states as particles. State smoothing in the presence of parameter uncertainty is also solved as a by-product of PL. In a number of examples, we show that PL outperforms existing particle filtering alternatives and proves to be a competitor to MCMC.